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Subaru cruise control light is flashing. Possible causes

Have you ever noticed your Subaru’s cruise control light flashing? It can be quite disconcerting. Don’t worry, it’s probably nothing serious.

In this article, you’ll learn what could be causing the flashing light and how to fix it. We’ll also discuss some other issues related to cruise control, so you can be better prepared if something similar happens in the future.

Key Takeaways

  • The flashing cruise control light in a Subaru could be caused by various issues such as a faulty brake switch, malfunctioning speed sensor, or blown fuse.
  • Other potential causes include a failing brake pedal switch, traction control system issues, malfunctioning mechanical components, and failed control module, sensor, or switch issues.
  • Throttle actuation problems and dirty or malfunctioning cameras (in the case of adaptive cruise control) can also lead to a flashing cruise control light.
  • Before visiting a service center, there are a few solutions to try such as replacing the brake switch, replacing the gas cap, disconnecting the positive battery cable and stepping on the brake pedal, and using an OBDII reader for diagnostic information. However, if the issue persists, it is recommended to visit an authorized Subaru service center for professional diagnosis and repair.

A brief explanation of the issue

If you’re driving a Subaru with cruise control, you may have noticed that the light on the dashboard is flashing . The flashing cruise control light can be caused by a number of issues, including:

  • A faulty brake switch
  • An electrical fault in the vehicle
  • A malfunctioning cruise control system
  • A loose or faulty connection in the wiring harness.

Troubleshooting the issue requires an experienced mechanic to diagnose and repair.

Causes of Flashing Cruise Control Light

If your Subaru’s cruise control light is flashing, it may be due to a malfunctioning speed sensor. This sensor is responsible for detecting the speed of the vehicle and relaying that information to the cruise control system. If the sensor is not working properly, it can cause the cruise control light to flash.

Another potential cause of a flashing cruise control light is a blown fuse. The fuse that controls the cruise control system may have blown, preventing it from functioning properly. Checking and replacing the blown fuse can resolve this issue.

A failing brake pedal switch can also be a culprit behind a flashing cruise control light. The brake pedal switch is responsible for detecting when the brake pedal is depressed, which is necessary for the cruise control system to disengage.

If the switch is failing, it may not properly detect when the brake pedal is pressed, leading to a flashing cruise control light.

Lastly, an issue with the traction control system can cause the cruise control light to flash. The traction control system is closely linked to the cruise control system, and if there is a problem with the traction control system, it can trigger the cruise control light to flash.

It is important to note that these are just potential causes and that a proper diagnosis should be done by a qualified technician to accurately identify the issue and determine the appropriate solution.

Malfunctioning speed sensor

You’re likely noticing your Subaru’s cruise control light flashing because the speed sensor is malfunctioning. This could cause a variety of issues such as:

  • Reduced fuel economy
  • Poor acceleration
  • Unstable speed control
  • Erratic RPMs.

It’s best to have the speed sensor inspected and replaced if necessary to ensure your car runs smoothly and efficiently.

Another possible cause of the Subaru cruise control light flashing is a blown fuse. A blown fuse is a sign that the circuit is overloaded and can’t handle the current running through it. In this case, the cruise control system may be shorting out and the fuse must be replaced in order to fix the issue.

Failing brake pedal switch

If the brake pedal switch has failed, it can also be the cause of the Subaru’s cruise control light flashing. The brake pedal switch is a safety feature that helps the cruise control system recognize when the brakes are being applied.

A malfunctioning switch can cause the cruise control system to not work properly, resulting in the light flashing.

Regular inspections of the switch can help identify any problems before they become dangerous. Replacing the switch when necessary can help ensure the cruise control system is working correctly and the flashing light isn’t a cause for alarm.

Traction control system issues

Besides a failing brake pedal switch, another potential cause of the Subaru’s cruise control light flashing is a malfunctioning traction control system. Here are four common culprits:

  • Faulty wheel speed sensors
  • Worn control unit
  • Low tire pressure
  • Damaged brake pedal switch.

A malfunctioning traction control system can cause the cruise control light to flash, so it’s important to have it checked by a professional to ensure safe driving .

Malfunctioning mechanical components

Apart from a faulty brake pedal switch, malfunctioning mechanical components can also be responsible for your Subaru’s cruise control light flashing. This includes a problem with the throttle control motor, the cruise control switch, the brake light switch, the cruise control actuator, and the ECU.

Malfunctioning of any of these parts can lead to a flashing cruise control light, and it’s important to get the issue resolved quickly as it can adversely affect the performance of your vehicle.

Failed control module, sensor, or switch issues

Aside from the mechanical components, a failed control module, sensor, or switch can also cause your Subaru cruise control light to flash. If any of these components fail, the cruise control light will start to flash. Here are a few common sources of this issue:

  • Electrical connections wearing away
  • Corroded wiring
  • Malfunctioning switches
  • Burned out control module.

It’s important to have your car checked by a qualified mechanic to determine the exact cause of the flashing light.

Throttle actuation problems

Frequently, issues with throttle actuation can also be the culprit behind a Subaru’s flashing cruise control light. When the cruise control light is flashing, it usually means the throttle actuator is in need of service. It can be caused by a malfunctioning throttle position sensor , a bad throttle body, or a faulty electronic throttle control unit.

In any of these cases, the throttle needs to be repaired or replaced. Proper troubleshooting is essential to identify the source of the issue and to ensure a proper repair.

Dirty or malfunctioning cameras (adaptive cruise control)

Continuing on from issues with throttle actuation, dirty or malfunctioning cameras can also be a cause of Subaru’s flashing cruise control light. Reasons include:

  • Obstructions blocking the camera’s view
  • Damaged camera lens
  • Malfunctioning of the camera’s hardware
  • Problems with the car’s software.

Dirt, grime, and corrosion can also be factors in camera failure. Be sure to have a professional check the camera’s condition to avoid further issues.

Solutions for Flashing Cruise Control Light

If you’re having trouble with your Subaru’s flashing cruise control light, don’t worry. There are several solutions you can try to get your car back to normal.

  • Hook up an OBDII reader to get valuable information.
  • Visit the service center at your nearest authorized Subaru dealer.
  • Check or replace the brake switch.
  • Even disconnect the positive battery cable for 10 minutes and step on the brake pedal for a minute.

Hook up an OBDII reader to get valuable information

Once you’ve hooked up an OBDII reader to your Subaru, you can start to get some valuable information that can help you solve why the cruise control light is flashing. It can:

  • Show any trouble codes
  • Help you diagnose electrical problems
  • Diagnose the engine light
  • Provide you with data about your vehicle’s performance.

With this information, you can get a better idea of why your cruise control light is flashing and how to fix it.

Visit the service center at your nearest authorized Subaru dealer

If you’re still unsure what the issue is after hooking up an OBDII reader, then you may want to consider visiting the service center at your nearest authorized Subaru dealer.

The staff at the center have the expertise to diagnose and repair any issues with your vehicle, and they’ll be able to provide you with insight into why the cruise control light is flashing.

They may even be able to suggest a repair or adjustment that can resolve the issue.

Taking your car to the service center is the best way to get the right advice and a quality repair.

Check/replace brake switch

Carrying on from the previous suggestion, the next solution might be to check or replace the brake switch, as it can sometimes be the source of the cruise control light flashing.

To do this, here are 4 steps to follow:

  • Find the brake switch and disconnect the wires.
  • Check the continuity of the switch with a multimeter.
  • If the switch is defective, replace it with a new one.
  • Reconnect the wires to the switch and test the cruise control light.

Disconnect the positive battery cable for 10 minutes and step on the brake pedal for a minute

Once the gas cap has been replaced, another solution to try if the cruise control light is still flashing is to disconnect the positive battery cable for 10 minutes and step on the brake pedal for a minute.

To do this:

  • Find the positive battery cable.
  • Unhook the cable and wait 10 minutes.
  • Re-connect the cable.
  • Step on the brake pedal for a minute.

This should reset the cruise control light and get your Subaru back on the road.

Final Words

It is important to check why your Subaru’s cruise control light is flashing in order to avoid any potential issues.

Taking the time to diagnose the cause of the flashing light will ensure that your car runs smoothly and safely.

Importance of checking the issue

It’s essential to get your Subaru checked as soon as possible if the cruise control light is flashing. Ignoring the issue could potentially lead to a more serious problem, such as:

  • A malfunction in the car’s braking system.
  • Damage to the car’s electronic components.
  • An unexpected increase in fuel consumption .
  • Unintended acceleration.

If you notice the cruise control light flashing, don’t hesitate to take your car to the nearest mechanic. Failing to address the issue can have costly consequences.

Be sure to get your car checked out as soon as possible.

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Rx Mechanic

Why is Subaru Cruise Control Light Flashing on My Car Dashboard?

Driving can be fun, but long-distance driving can be fatiguing as you keep pressing the gas pedal to keep the car going at your desired speed. Thankfully, cars now feature cruise control — a system that lets drivers set a desired speed and relaxes their feet when traveling a long journey.

You can activate the system by pressing the cruise control button and the vehicle will keep you at the current speed. So you don’t have to depress the gas pedal to keep the car running. Cars with advanced cruise control systems use sensors at the front bumper to detect vehicles ahead of them and keep the car at a distance to prevent collision.

Like other system components, the cruise control does have issues. And these issues are common with Subaru cars. Most Subaru owners complain of Subaru cruise control light flashing on the dashboard as they drive.

subaru outback check engine light flashing cruise control traction control

Why does my Subaru cruise control light keep flashing?

The most common reason why the cruise control light is flashing on your Subaru is due to an electrical or mechanical problem. Remember, when the light is flashing, the cruise control system is disabled, so don’t try to turn it on because it won’t work.

In some other cases, the cruise control light may be flashing due to a defective or loose gas cap, a blown fuse for the cruise control, a failing brake pedal switch, or a defective vehicle speed sensor. Let’s have an in-depth look to see how these issues could cause cruise control light flashing on Subaru Outback and other Subaru models.

Blown fuses

The cruise control system consists of several electrical systems protected by a fuse. The fuse can blow up if there’s an electrical power issue, preventing the key components from failing. If that happens, it will disable the cruise control system. In some cases, the car computer will start flashing the cruise control light on the dashboard to notify you that there’s an underlying issue that needs urgent attention.

If you suspect the fuse is blown, replace it and see if that fixes the cruise control system and clear the blinking light on the dashboard.  If that resolves the problem but the fuse blows in no time and the light starts blinking again, you have other electrical issues. Contact your mechanic for a thorough diagnosis.

Defective speed sensor

The vehicle speed sensor is one of the essential components of the cruise control system. When you activate the cruise control, the onboard computer collects information from the speed sensor to know when to increase and decrease the engine speed.

The vehicle speed sensor is mounted at the tail end of your transmission, and if it malfunctions, the cruise control light will start blinking on the dashboard. The speed sensor is needed to ensure that the speedometer and the odometer work correctly, and without it, the cruise control system will be affected.

If you notice the cruise control light flashing and check engine light is on, check the vehicle speed sensor. A bad speed sensor triggers the check engine light and disables the cruise control system. This sensor cannot be repaired. So, if it is the root cause, the only solution is to replace it with a new one.

Loose gas cap

Believe it or not, the gas cap plays a crucial role in your vehicle’s overall functionality. The gas cap can affect the performance of the cruise control system. For instance, in Subarus, a loose gas cap can cause the cruise control light to blink as you drive. It can also trigger the check engine light to pop on the dashboard. So, a loose gas cap can cause the Subaru Forester check engine light with flashing cruise control to pop on the dashboard.

Faulty mechanical component

If you own an older Subaru car, the cruise control light could be flashing due to a faulty mechanical component. In older models, the cruise control system has a cable, connecting the throttle to an air actuator, which regulates the cable to keep the vehicle at the set speed settings.

If any of the mechanical components go bad, it can disable the system and trigger the blinking light on the dashboard.

Malfunctioning brake pedal switch

Under perfect conditions, the brake lights shine as you depress the brake pedal. There’s a component attached to the brake pedal — the brake pedal switch, which tells the brake lights to light up as you depress the pedal.

If the switch goes bad, the brake lights won’t know when you step on the brake pedal. But aside from this, a bad brake pedal switch can also affect the cruise control system.

When you activate the cruise control system, the system will deactivate and switch to manual mode whenever you step on the brake pedal. If the switch malfunctions, it may send wrong signals to the cruise control system, telling it the brake pedal is always depressed, preventing the cruise control system from turning on.

System malfunction

If your Subaru check engine light is flashing along with the cruise control light and the brake pedal switch, fuses, and vehicle speed sensors are good, you have a problem somewhere in the cruise control system.

To determine the root cause of the malfunction, you need a mechanic to diagnose the vehicle. The mechanic will inspect all cruise control components and may plug in a scan tool to pull out all the error codes in the vehicle.

It’s okay for the cruise control light to be on when you activate it, but if the light comes on when you are not using the cruise control, or the light starts blinking when you activate it, there’s a problem that needs to be addressed. In most cases, a flashing cruise control light on Subaru is accompanied by the engine warning light.

What to do if your Subaru cruise control light flashing?

Whenever the Subrau cruise control light starts flashing on the dashboard, the cruise control has malfunctioned or disabled. Hence, do not turn on the cruise control system. If the light starts flashing after getting gas, locate a safe spot and pull over. Check the gas cap and re-tighten it. It could be you did not secure the gas cap properly.

If that do not solve the problem, drive straight to your mechanic and have them diagnose and fix the problem.

Does the cruise control stop working when check engine light is on?

If the onboard computer detects a problem with your transmission or the engine, it will display the check engine light and disable certain vehicle functions, like the cruise control system, to prevent further damage until you address the issue.

Let’s be clear here; this does not mean that the PCM must disable the cruise control whenever it detects an issue with the engine or transmission. It will only disable the system if the issue is causing unstable engine performance.

Subaru Outback check engine light flashing, cruise control, and traction control light blinking can all come up due to engine performance issues. Contact your mechanic to proffer solutions to the problem. 

Final Words

To be precise, the flashing Subaru cruise control light shows there is a mechanical or electrical problem in your car. The cruise control light should be green and steady when you turn on the system. But if the light is flashing, turn off the cruise control until you address the problem.

If you are a DIYer, you can fix the issue yourself. But if you are not, contact your mechanic or dealership. The solution can be easy, quick, and quite affordable.

Osuagwu Solomon

Osuagwu Solomon is a certified mechanic with over a decade of experience in the mechanic garage, and he has over five years of experience in the writing industry. He started writing automotive articles to share his garage experience with car enthusiasts and armature mechanics. If he is not in the garage fixing challenging mechanical problems, he is writing automotive repair guides, buyer’s guides, and car and tools comparisons.

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Car Super Care

Subaru Cruise Control Light Flashing – Main Causes

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Engine Control Unit

Malfunctioned speed sensor, faulty fuse, a problem with the solenoid valves, the catalytic converter is failing, an issue with the gas cap, a problem with plug wires, faulty battery.

Driving continuously without stopping to rest can drain your energy and even harm your car. But these problems have been solved for Subaru by introducing a cruise control system .

This system enables you to set the engine to a certain speed, thus saving you energy since you won’t have to hit the accelerator now and then.

Causes of Subaru cruise control light flashing

It also warns you that specific components in the car have malfunctioned by producing a  flashing light .

But what exactly are these components that make the Subaru cruise control light start flashing? Let’s take a look!

Are you using a Subaru 2005 or a newer model? If so, then you should pay attention to the light.

It is because these Subaru models are equipped with an engine control unit. This unit diagnoses problems in your car and relays them to you by sending a code.

This code is usually accompanied by a check engine light or flashing light from the cruise control system.

There are about 200 codes in these Subaru models, and each one of them indicates a certain level of problem in the car.

Therefore, the flashing light does not necessarily have to worry you since they are merely communicating an issue in the car, which may not be serious at all.

To fix the flashing light or check the engine light caused by an engine control unit, you will first check what the code means.

If the code implies a less severe issue that you can quickly fix, then do so and proceed to delete the code using an OBDII reader.

If the code indicates that your Subaru has a severe problem, then tow it to the mechanic, who will fix the issue.

The cruise control system is linked to a speed sensor that controls how it functions. The sensor relays a signal to the control system to increase or reduce the car’s speed.

However, this sensor can malfunction, thus making the control system not register any of your commands.

It will be shown by the check engine light coming on or the Subaru cruise control light flashing.

The speed sensor is an essential component that needs immediate fixing when faulty. It is because an issue with this sensor can affect the functioning of the car’s speedometer.

Unfortunately, it is impossible to repair a damaged speed sensor: hence you will have to purchase and install a new one.

Fuses safeguard the electrical components in a cruise control system. They act as shields that, when damaged, allow very little or no current to reach the control system.

It will make the cruise control light flash until the issue has been corrected.

Luckily, you can quickly fix the problem by replacing the damaged fuse.

However, if the lights continue flashing, it means that the issue is beyond the fuses, and you will have to check the other components in the cruise control system.

Your car’s engine has solenoid valves that control the flow of fluids such as oil. It does so by providing the pressure that pumps the fluid.

These solenoid valves can malfunction due to low fluid or extreme electric current. They will cause the check engine to come on when faulty, making the cruise control light flash.

Try topping up the fluid to its correct amount to sort out this problem.

But if the solenoid valves have malfunctioned due to electric spikes, the only way to resolve the issue is by replacing the damaged components.

The Subaru models have been designed to alert you whenever there is a problem with the powertrain system.

Therefore, a failing catalytic convertor usually makes the cruise control light flash. In most cases, this light is accompanied by a check engine light coming on.

Subaru cruise control light flashing

Many things can make the catalytic converter fail. They include a failing fuel injector, wrong fuel mixture, a problem with the check valve, an issue with the oxygen sensor, etc.

So, it would be best to diagnose the exact problem first before deciding to replace or repair it.

If the cruise control light is flashing and the check engine light is on, then the chances are high that your Subaru Forester has an issue with the gas gap.

The gas cap plays a vital role in the engine. For instance, it maintains pressure and holds the gas fumes in the fuel tank.

In most cases, the gas cap is loose, thus letting out the gas. It happens when you refuel the car and fail to tighten it correctly.

To know if the gas cap is causing the issue, try starting the car after refueling it while observing the check engine and cruise control lights.

If the check engine light comes on right away, it confirms that the gas cap is loose. You can then replace the gas cap with a new one.

A problem with plug wires can also make the check engine light come on and consequently cause a flashing light in the cruise control system.

The plug wires supply the spark plugs with voltage, which will, in turn, ignite the air and fuel in the combustion chamber, thus making the engine run.

Therefore, if the plug wires malfunction, the engine will supply low power to the Subaru car. The check engine will sense this problem and alert you by turning on its light.

If the flashing light or the check light is accompanied by reduced speed, it is more likely that the plug wires are faulty.

You can then check the plug wires to confirm that they are causing the issue. If your findings are positive, it would be best to replace them since worn plug wires are difficult to repair.

Even though the Subaru battery has been designed to last for a long time, specific mechanical issues can make it malfunction.

Also, as the battery gets old , the amount of voltage it supplies reduces. Therefore, if you are using an old model of Subaru, its battery may have gone faulty.

A faulty battery will cause the engine to misfire, making the check engine light come on and the cruise control system start flashing. Fortunately, it is easy to diagnose a faulty battery.

All you have to do is check if the battery can charge your phone. If your phone’s battery percentage does not go up, you have a bad battery that you should replace.

The cruise control and check engine light play an essential role in your Subaru. For instance, when the cruise control light starts flashing, it tells you there is an issue with your car.

Such problems may include a faulty battery, loose gas cap, damaged fuse, faulty brake pedal, etc. Therefore, it is vital to heed the two components to ensure that your car functions well.

It is possible that the issue causing the lights to come on is minor and can easily be fixed by simply following your Subaru manual. Hence, you can check it for a solution before visiting the mechanic.

Daniel from CarSuperCare

With comprehensive experience in writing exceptional quality articles and blogs about cars and related stuff, Daniel is one of the finest bloggers and a hardcore car lover we have. He is an ASE certified technician with an across-the-board experience of 10 years in the industry. He could not help tinkering with anything he got his hands on from a young age, which led to his remarkable career in the automotive repair industry.

When he is not under any hood, you can find him on the water or in the woods to pursue his passion for hunting and fishing. He has been writing for multiple sectors and is a regular contributor to several publications.

He currently owns a Nissan 300ZX TT and a Pearl Yellow but plans to upgrade it to 550 HP. His favorites include the Koenigsegg CCX and Lamborghini Diablo 6.0 VT, but for him, the Ferrari 360 Spider is one of the sexiest cars that exists to date.

Being an avid world traveler, he has spent most of his time analyzing the automotive markets, latest technology, and local favorites to enhance his knowledge base. He is currently living in North Caroline, where it’s all about food and coffee and, of course, cars.

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Blinking Cruise Control Light Subaru: How to Fix and Troubleshoot

The blinking cruise control light in a Subaru indicates that there is a problem with the cruise control system, causing it to be disabled. This often occurs when the check engine light is also illuminated, indicating additional issues with the vehicle’s dynamic stability control.

It is important to address these problems and have them diagnosed and repaired by a professional. If you own a Subaru and notice that the cruise control light is blinking, you may be wondering what is causing this issue. The blinking cruise control light is a clear indication that there is a problem with the cruise control system in your Subaru.

This can be concerning, as it means that your cruise control is disabled and not functioning properly. In addition, when the check engine light is also illuminated, it indicates further issues with the vehicle’s dynamic stability control. It is important to understand the reasons behind the blinking cruise control light and take appropriate action to address the problem. By resolving the underlying issues, you can ensure the smooth functioning of your Subaru’s cruise control system and ensure the safety of your driving experience.

Blinking Cruise Control Light Subaru: How to Fix and Troubleshoot

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Understanding The Significance Of A Blinking Cruise Control Light

The meaning behind a blinking cruise control light.

When you see the cruise control light on your Subaru blinking, it is an indication that there is a problem with the cruise control system. The flashing light serves as a warning sign that something needs attention and that the cruise control function has been disabled. It is crucial to address this issue to ensure the safety and smooth operation of your vehicle.

Factors that can trigger a blinking cruise control light

Several factors can trigger a blinking cruise control light in your Subaru. These include:

  • Faulty wheel speed sensor or vehicle speed sensor

Brake pressure shut off switch malfunction

  • Issues with the cruise control module
  • Electrical problems within the cruise control system
  • Malfunctioning engine or emission system

The impact of a blinking cruise control light on your Subaru

Having a blinking cruise control light can have several impacts on your Subaru:

  • The cruise control function will be disabled, which means you won’t be able to set or maintain a constant speed using the cruise control feature.
  • Your vehicle’s dynamic stability control light may also come on, indicating that it has been disabled.
  • Depending on the underlying issue, other systems like the ABS or traction control may be affected.
  • Ignoring a blinking cruise control light can lead to potential safety risks, as it may indicate a more significant problem with your vehicle’s overall performance.

Therefore, it is crucial to address the issue promptly when you notice a blinking cruise control light in your Subaru. Consulting a professional mechanic or taking your vehicle to an authorized Subaru service center will help identify and resolve the problem, ensuring the proper functioning of your cruise control system and overall vehicle performance.

Common Causes Of A Blinking Cruise Control Light

When your Subaru’s cruise control light starts blinking, it’s important to identify the underlying issue so that it can be addressed promptly. There are several common causes of a blinking cruise control light, including:

Faulty wheel speed sensor

A faulty wheel speed sensor can be one of the reasons why your cruise control light is blinking. The wheel speed sensor is responsible for sending signals to the vehicle’s computer system, which in turn controls the cruise control function. If the sensor is malfunctioning or damaged, it may cause the cruise control light to blink.

Issues with the vehicle speed sensor

Another possible cause of a blinking cruise control light is problems with the vehicle speed sensor. This sensor measures the speed at which the vehicle is traveling and relays that information to the cruise control system. If there is a malfunction or malfunctioning vehicle speed sensor, it may trigger the blinking cruise control light.

The brake pressure shut off switch is designed to disengage the cruise control function when the brake is applied. If this switch malfunctions and fails to disengage the cruise control, it can cause the cruise control light to blink. It’s important to address this issue promptly, as it can affect the safe operation of your vehicle.

These are just a few of the common causes of a blinking cruise control light in a Subaru. If you notice your cruise control light blinking, it’s recommended to have your vehicle inspected by a qualified mechanic to determine the exact cause and resolve the issue.

How To Troubleshoot A Blinking Cruise Control Light

How to troubleshoot a blinking cruise control light.

If you’re experiencing a blinking cruise control light on your Subaru, it indicates a problem with the cruise control system. This can be concerning, as it means that the cruise control has been disabled. However, there are steps you can take to troubleshoot and resolve the issue. In this guide, we’ll walk you through each step to help you diagnose and fix the problem.

Step-by-step guide to troubleshooting a blinking cruise control light

Checking and resetting the gas cap.

Start by checking the gas cap on your Subaru. Make sure it is tightly secured. A loose or faulty gas cap can trigger the check engine light and cause the cruise control light to blink. If the gas cap is loose, tighten it and see if the issue resolves. If not, try resetting the gas cap by disconnecting the negative battery terminal for a few minutes, then reconnecting it.

Scanning for fault codes

To further diagnose the issue, use an OBD-II scanner to scan for fault codes. This will help you identify any underlying problems with the vehicle’s systems. If any fault codes are detected, make note of them for further investigation.

Testing ignition coils

Faulty ignition coils can also trigger the check engine light and cause the cruise control light to blink. Use a multimeter or consult a professional to test the ignition coils for proper function. If any issues are found, replace the faulty ignition coil(s) as necessary.

Checking engine control system for fault codes

Continuing with the troubleshooting process, check the engine control system for any fault codes. These codes can provide valuable information about potential issues that may be affecting the cruise control system. Address any identified faults accordingly.

Inspecting ABS and TCM for potential issues

The ABS (Anti-lock Braking System) and TCM (Transmission Control Module) can also play a role in the proper functioning of the cruise control system. Inspect these systems for any potential issues, such as faulty sensors or wiring. Repair or replace any components as needed.

Test driving the Subaru

After performing the necessary diagnostic steps and addressing any identified issues, it’s important to test drive the Subaru to ensure that the blinking cruise control light has been resolved. Pay close attention to the cruise control system’s performance during the test drive. If the light no longer blinks and the cruise control functions properly, the troubleshooting process is successful.

Fixing A Blinking Cruise Control Light

Resolving the underlying causes of a blinking cruise control light.

When you encounter a blinking cruise control light in your Subaru, it is crucial to address the underlying causes promptly. Ignoring this issue can result in disabled cruise control and compromised dynamic stability control, affecting your driving experience. To fix a blinking cruise control light, you can follow a few troubleshooting steps:

Reinstalling the gas cap properly

One common reason for a blinking cruise control light is a loose or improperly installed gas cap. To resolve this, follow these steps:

  • Turn off your Subaru and locate the gas cap.
  • Remove the gas cap and inspect it for any damage or debris.
  • Ensure that the seal on the gas cap is clean and undamaged.
  • Reinstall the gas cap securely by twisting it clockwise until you hear a click.

By properly reinstalling the gas cap, you can eliminate any potential issues related to the fuel system, allowing the cruise control light to stop blinking.

Repairing or replacing faulty sensors

In some cases, a blinking cruise control light may be due to faulty sensors in your Subaru. These sensors include the wheel speed sensor and vehicle speed sensor. To address this issue:

  • Consult a professional mechanic or Subaru dealership to diagnose the specific sensor causing the problem.
  • Repair or replace the faulty sensor as recommended by the expert.
  • Reset the check engine light and test the functionality of the cruise control.

By resolving sensor-related issues, you can restore proper functioning to your Subaru’s cruise control system and eliminate the flashing light.

Addressing issues with the brake pressure shut off switch

The brake pressure shut off switch, which disengages the cruise control when the brake is activated, can also be responsible for a blinking cruise control light. To troubleshoot this problem:

  • Inspect the brake pressure shut off switch for any visible damage or corrosion.
  • If necessary, replace the switch with a new one.
  • Reset the check engine light and test the cruise control to ensure it is functioning properly.

By addressing any issues with the brake pressure shut off switch, you can eliminate the blinking cruise control light and restore full functionality.

Fixing any other identified problems

In addition to the mentioned causes, various other factors can contribute to a blinking cruise control light. It is essential to identify and resolve any additional problems that may be affecting your Subaru. Consider seeking professional assistance to diagnose and fix any underlying issues that are impacting the cruise control system. By doing so, you can ensure optimal performance and a smooth driving experience.

Tips For Preventing Future Blinking Cruise Control Light Issues

Regular maintenance and servicing, checking and replacing fluids when necessary, being mindful of potential triggers for a blinking cruise control light, frequently asked questions on blinking cruise control light subaru, why is my cruise control light flashing subaru.

The cruise control light on your Subaru is flashing to indicate a problem with the cruise control system. It could be due to issues with the wheel speed sensor, vehicle speed sensor, or the brake pressure shut off switch. When the check engine light comes on, the cruise control and dynamic stability control will be disabled.

What Does It Mean When My Cruise Control Is Blinking?

The blinking cruise control light indicates a problem with the cruise control system. It could be related to a wheel speed sensor, vehicle speed sensor, or the brake pressure shut off switch.

Why Is My Cruise Light Flashing Subaru Outback?

The flashing cruise control light on your Subaru Outback indicates a problem with the cruise control system.

Why Is My Check Engine Light Cruise Control And Traction Control Light On?

The check engine light, cruise control light, and traction control light may all come on at the same time. This is often caused by a loose gas cap.

Why Is My Cruise Control Light Flashing On My Subaru?

When the check engine light comes on, the cruise control light will blink, indicating that the cruise control has been disabled.

If you notice your cruise control light blinking in your Subaru, it is an indication that there is a problem with your cruise control system. This could be caused by various issues such as a faulty wheel speed sensor, a vehicle speed sensor, or a brake pressure shut off switch.

When the check engine light comes on along with the blinking cruise control light, it means that both the cruise control and dynamic stability control have been disabled. It is important to address this issue as soon as possible to ensure safe driving and to prevent further damage to your vehicle.

Don’t panic though, as in some cases, a simple fix like tightening the gas cap might solve the problem. If the issue persists, it is recommended to consult a professional mechanic who can diagnose and repair the specific problem with your Subaru’s cruise control system.

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Cruise control light blinking

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So, I have my cruise control light blinking on and off without any other issues or check engine light going off to help me navigate the problem and I have no idea what it might be. I did hit a pretty bad pit hole today but the cruise control light only started to blink a few hours after hitting it. I know that the module won’t work if the light is blinking so obviously I can’t use my cruise control but it’s really annoying to see it blink. It comes on a minute or two after I start the car up. Does anyone know where I should start looking for diagnosing this. My car is a 2017 Subaru Wrx 6speed and is modified with an intake, Jpipe from the downpipe, highflow cats, EBCS and EGR/TGV delete with a protune produce 295hp/ 320tq  

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Diagnosing a P0500 (Dash: Err SS); Rare problem: failed...

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Oh wow, I was not even aware that the cruise control module can actually throw and store codes. That’s really good to know, I’ll be sure to buy that special OBD2 cord and scan the cruise control system with that software to see the code that my cruise control is throwing.  

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2016 Crosstrek flashing cruise control icon and steady check engine light on at 99K miles

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So my 2016 Crosstrek hit 99K miles 2 days ago. Its CPO to 100K miles so I'm very close to the warranty expiring. The day after rolling 99K the check engine light came on and the flashing cruise control icon came on. First off, I'm trying to eliminate any possible minor issues. I had a mechanic do a general scan of error codes and it came up as a possible "valve misfire". Unfortunately, I forgot to get the exact code for it. I contacted the dealership and they said if the car hasn't had the spark plugs changed it could be that. I haven't had the car tuned up (incl. spark plug changed) since I purchased it 14 months ago. But wondering if the mechanic's code of a "valve misfire" is more related to the engine than spark plugs? I've been holding off on getting the car placed for a tune-up service because I'm currently short on funds. So I'm trying to minimize the losses as much as I can and seeing where I should first start in troubleshooting this issue. Obviously, if it's an engine/drivetrain issue I'm covered through the warranty. By the way, would this include any emissions issues as well? As for the flashing cruise control light.. from what I've read not many Subaru owners seem to know why this comes on along with the check engine light. If anyone has had experience with this and got it resolved I would greatly appreciate some guidance. I'm hoping for more "FixIt" answers than the "warning lights" going away on its own. ??  

MarioAndretti

Valve misfire?I never heard of that.I think you mean cylinder misfire.This would also have a number saying what cylinder is misfiring.If they haven't been changed yet then I would say it's about time for a set of spark plugs even if that's not the cause.The most common cause for a misfire is a bad coil which plugs on to the spark plug.To find out what the issue is,rescan the codes to see which cylinder is misfiring.Remove the coil from that cylinder and replace it with the coil that's easiest to get to and place the other coil where that one came from.If the misfire changes cylinders then the coil is your problem.Good luck.  

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2008 With Check engine, Traction control, and flashing Cruise light

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:banghead:

Clearing the code manually not only erases the code, it resets the Engine Control Module. All "learned" trims that were in memory are cleared, and that included idle control trims. If the learned trims are minor, or there were none, then there's little or no effect, but if they were significant it will take some relearning before the engine operates as it did before. In regard to the P0420, if you haven't already, see P0420 Diagnosis . The "cat efficiency" test is run only once in each drive cycle, and only under a set of predetermined driving conditions. Moreover, the fault has to be detected in two consecutive drive cycles for the code to appear. Consequently, it might not reappear right away.  

plain OM said: Clearing the code manually not only erases the code, it resets the Engine Control Module. All "learned" trims that were in memory are cleared, and that included idle control trims. If the learned trims are minor, or there were none, then there's little or no effect, but if they were significant it will take some relearning before the engine operates as it did before. In regard to the P0420, if you haven't already, see P0420 Diagnosis . The "cat efficiency" test is run only once in each drive cycle, and only under a set of predetermined driving conditions. Moreover, the fault has to be detected in two consecutive drive cycles for the code to appear. Consequently, it might not reappear right away. Click to expand...

The Check Engine Light will automatically go off after three drive cycles with no further findings of a fault. This also restores other functions, such as cruise control, that were disabled when the CEL was turned on. This automatic clearing of the CEL does not affect the ECM learned trims, because it does not erase the memory. It is still in memory and will be kept there for up to 40 drive cycles, at which time it will be removed. It has no effect on engine operation, but a code reader will still display it. (This long-time retention is used to identify recent codes for which the CEL had come on, but subsequently was turned off in the time between it appearing and a code reader is used. Knowing the code could help identify work that could be done to prevent a recurrance.)  

Well I got the CEL lights again yesterday afternoon on the way home. Steady state cruising and about 1/4 tank fuel. Guess i'll be looking at the Code again, but not clearing it. Maybe it will reset after another drive cycle on the way home today.  

GregB said: Maybe it will reset after another drive cycle on the way home today. Click to expand...

Lights finally cleared themselves. Took more than three drive cycles though. Guess my drive cycle is not quite what Subaru calls a drive cycle. No biggy. Hopefully it will cooperate until the weather is a little more temperate, been in the teens lately.  

Bit the bullet Saturday, threw the wife's forester out of the garage and pulled in the Outback. After a struggle 4 new plugs and wires were installed. Never saw plugs worn that bad, correct color deposits, but two of the plugs did not even have the thin tip on the center electrode. The lights are off, been that way for about a week before the plug change. How long will it take for the readiness code to clear itself? I did find oil in the plug wells what is the usual culprit?  

johnre

GregB said: I did find oil in the plug wells what is the usual culprit? Click to expand...

blinking cruise light subaru

  • Feb 14, 2022

blinking cruise light subaru

GregB said: The dropping to Zero and then recovering worries me though. Click to expand...

Just an update. Bit the bullet and replace the ~100,000 mile Bosch front sensor and the original rear sensor with Denso sensors. After the struggle of removing the old, the check engine light has been off 200 miles ! How long before the readiness codes reset?  

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2006 - Blinking Cruise light & CEL on?

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I have a 06 Forester w/ 70k and last night shortly after setting my cruise control on a country road at 55mph, cruise shut off on it's own and light started blinking. Then CEL came on. Engine ran fine. After arriving back at the house, I checked all connections to no avail. I then unhooked battery and let sit until AM. Also checked gas cap for at least 6 clicks in closure. This morning I re-connected battery and started car which took several turns to light although once started, it ran fine with no lights whatsoever. Took a drive up to dealer to test drive a new Legacy my wife's been considering and ran about 40 miles of errands. Still no lights. Stopped for dinner and shortly after leaving, the lights came on although cruise was not being used at the time. any suggestions before going to the dealer?? Thanks, Motoretro  

flstffxe

Get the code read that caused the CEL to come on. Some auto parts stores such as Autozone do it for free.  

Hot09XT

Check your Gas cap. If it is loose it can cause this to happen. Did with mine and a couple of others but they were MY09's. Not really sure about yours as you are in a MY06.  

After a trip to the dealer, the car was diagnosed with dead oxygen sensor. Estimate was $300.00 parts and labor:crazy:. Seems more than a bit high. How much are these sensors?? How tough is it to replace them? Motoretro  

StealthyScooby

hmmm my 04 the front one is behind a little door in the inner fender well, i bought my oem sensor about a year or so ago and installed it my self in about MAYBE an hour taking my time and not stressing. cost $200.00  

Thanks Stealth, I've checked the location out and looks a bit tough to reach without removing a bunch of stuff on 06. They both look like the road salt has done their work on them. Local parts dealer can't get the front one, only back one. Looks like the dealer will get this one:icon_frown: Motoretro  

Are the Oxygen sensors covered under 80K factory emissions warranty? Thanks in advance, Motoretro  

i had the same problem on my 07 forester, CEL and blinking cruise control light. anyways thats covered under warranty. 80k miles  

What was the fix for yours?  

Tubby, Thanks for the quick reply, So it is covered huh? Looks like i need to call SOA as I believe dealer is going to charge me....:huh: Thanks, Motoretro  

crewzer

Are the Oxygen sensors covered under 80K factory emissions warranty? Click to expand...

Crewzer, Your 100% correct, the O2 Sensor appears to not be covered in the 80K emission warranty. Found it in my manual/warranty books. Motoretro  

Here's a copy of what is and isn't covered under the EPA 8/80 warranty. It's a link directly from the EPA itemizing the various parts. I too have a similar problem with my Forester ('04 XT M/T). I set the cruise control and the CEL comes on after a little while and it throws a code. I'm not sure which code it is, but I wager it's the P0420 and am going to check it when I go to Autozone. The dealer (Feder's Subaru in Middletown, NY) has been surprisingly unhelpful with this. They replaced one O2 sensor already and the CEL went off again just two days later. The only thing they did the last time was reset the ECU and, naturally, the cruise failed again with CEL and blinking cruise light. I'm getting a bit frustrated. I'm still under 80,000 miles so the catalytic converter is under warranty so if that's what's really going on then I'm going to tell them to replace the damn thing. I'm not happy with this situation.  

I understand and feel your frustration. If my problem persists after the O2 Sensor is replaced, I'll also push for Converter replacement as I have just over 70K now. There seems to be a pattern here with no real definitive answer. I wonder if the newer Subes are plumbed the same way? We are looking at a new O/B and really don't need another problem child. Motoretro  

bbottomley

It looks like you've now gotten to the bottom of the problem and realized that it doesn't actually have anything to do with cruise control. But just to close off that aspect of things, shutting off cruise control and blinking its light is a defensive measure. It's intended to put the driver back in full command at a time when the engine might not be expected to perform in its normal fashion.  

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COMMENTS

  1. Subaru cruise control light is flashing. Possible causes

    The flashing cruise control light in a Subaru could be caused by various issues such as a faulty brake switch, malfunctioning speed sensor, or blown fuse. Other potential causes include a failing brake pedal switch, traction control system issues, malfunctioning mechanical components, and failed control module, sensor, or switch issues.

  2. Subaru Check Engine Light Lit And Cruise Control Light Flashing Fix

    If you have a Subaru, and the cruise control light is flashing and the check engine light has come on, this video shows what can be causing it. The most comm...

  3. Cruise control light flashing???

    the exact same thing happened to me last night at 2 a.m.. i was driving on the interstate, came upon a horrible storm, then stopped for a while. the rain let up a bit, but the check engine light came on and the cruise flashed. i had to keep on driving to get home, and it's the same this morning. i checked the gas cap and will try the battery disconnect/brake peddle trick. thanks miker104!

  4. Why is Subaru Cruise Control Light Flashing on My Car Dashboard?

    The most common reason why the cruise control light is flashing on your Subaru is due to an electrical or mechanical problem. Remember, when the light is flashing, the cruise control system is disabled, so don't try to turn it on because it won't work. In some other cases, the cruise control light may be flashing due to a defective or loose ...

  5. Flashing cruise light?

    The cruise control indicator light illuminates when the ignition switch is turned to the "ON" position and turns off after approximately 3 seconds. This light illuminates when the "CRUISE" main switch is pressed. If you press the main switch button while turning the ignition switch "ON", the cruise control function is deactivated ...

  6. Subaru Cruise Control Light Flashing

    An Issue With The Gas Cap. If the cruise control light is flashing and the check engine light is on, then the chances are high that your Subaru Forester has an issue with the gas gap. The gas cap plays a vital role in the engine. For instance, it maintains pressure and holds the gas fumes in the fuel tank. In most cases, the gas cap is loose ...

  7. Blinking Cruise Control Light Subaru: How to Fix and Troubleshoot

    The blinking cruise control light in a Subaru indicates that there is a problem with the cruise control system, causing it to be disabled. This often occurs when the check engine light is also illuminated, indicating additional issues with the vehicle's dynamic stability control.

  8. Why Is My Cruise Control Light Blinking? (Common Causes)

    A blinking cruise control light is often accompanied by the check engine light turning on. The check engine light needs to be addressed and may be linked to the issues within the cruise control system. Causes of Blinking Cruise Control Light in a Subaru. A flashing cruise control light is a common issue in Subaru vehicles, such as the Forester.

  9. Subaru Outback Questions

    2012 Subaru Outback-I was driving about 60 mph and the check engine light came on and traction light and the cruise control and brake light started blinking. I tried taking the gas cap on and off no luckily. I saw some things on here about checking a fuse, any specific ones i need to check. 20 people found this helpful.

  10. Cruise control light blinking

    2 posts · Joined 2022. #1 · Mar 8, 2022. So, I have my cruise control light blinking on and off without any other issues or check engine light going off to help me navigate the problem and I have no idea what it might be. I did hit a pretty bad pit hole today but the cruise control light only started to blink a few hours after hitting it.

  11. 2016 Crosstrek flashing cruise control icon and steady check engine

    As for the flashing cruise control light.. from what I've read not many Subaru owners seem to know why this comes on along with the check engine light. ... Subaru Crosstrek and XV Forums. 458.6K posts 64.4K members Since 2011 The world's largest online community of Subaru Crosstrek and XV owners, prospective owners, and enthusiasts. ...

  12. Subaru Check Engine Light Stays On

    Many newer Subarus might have a check engine light and a cruise light flashing after a battery change. In most cases, this is caused by a blown fuse in the engine compartment fuse box. ... Subaru Check Engine Light Flashing. If the check engine light is flashing, a misfire has been detected. Typically this is due to a faulty spark plug ...

  13. (2018 Subaru Impreza)

    It is currently -32C, and when I went outside I saw that my Subaru's command start had failed. I sat down in the car, turned the key, and it did not turn it over. It made a humming sound. I tried again, and it turned over, but this time with the CE light coming on, as well as the cruise control indicator blinking.

  14. 2007 outback blinking cruise light and check engine light

    2007 outback blinking cruise light and check engine light. Help! I was accelerating to merge onto highway and both lights started blinking. This car has had the check engine light blink before but goes off. New head gaskets 2 months ago.

  15. 2008 With Check engine, Traction control, and flashing Cruise light

    plain OM. 21227 posts · Joined 2006. #4 · Jan 7, 2022. The Check Engine Light will automatically go off after three drive cycles with no further findings of a fault. This also restores other functions, such as cruise control, that were disabled when the CEL was turned on.

  16. Blinking Cruise light & CEL on?

    motoretro Discussion starter. 127 posts · Joined 2006. #1 · Oct 17, 2009. I have a 06 Forester w/ 70k and last night shortly after setting my cruise control on a country road at 55mph, cruise shut off on it's own and light started blinking. Then CEL came on. Engine ran fine. After arriving back at the house, I checked all connections to no avail.