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:

  1. Faulty wheel speed sensor or vehicle speed sensor
  2. Brake pressure shut off switch malfunction
  3. Issues with the cruise control module
  4. Electrical problems within the cruise control system
  5. 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.

Brake pressure shut off switch malfunction

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

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

  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. 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:

  1. Turn off your Subaru and locate the gas cap.
  2. Remove the gas cap and inspect it for any damage or debris.
  3. Ensure that the seal on the gas cap is clean and undamaged.
  4. 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:

  1. Consult a professional mechanic or Subaru dealership to diagnose the specific sensor causing the problem.
  2. Repair or replace the faulty sensor as recommended by the expert.
  3. 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:

  1. Inspect the brake pressure shut off switch for any visible damage or corrosion.
  2. If necessary, replace the switch with a new one.
  3. 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

Regular maintenance and servicing are crucial for preventing future blinking cruise control light issues in your Subaru. By following the manufacturer’s recommended maintenance schedule, you can ensure that your vehicle’s systems are functioning optimally. This includes regular oil changes, filter replacements, and inspections of crucial components such as the brakes, tires, and electrical system. Taking your Subaru to a trusted mechanic or dealership for routine maintenance can help identify any underlying problems that may cause the cruise control light to blink.

Checking and replacing fluids when necessary

Another important tip for preventing future blinking cruise control light issues is to regularly check and replace fluids when necessary. This includes checking and topping up the engine oil, transmission fluid, brake fluid, and coolant. Low fluid levels or dirty fluids can affect the proper functioning of various systems in your Subaru, including the cruise control. Keeping an eye on the fluid levels and replacing them when they are low or contaminated can help prevent potential issues that may trigger the blinking cruise control light.

Being mindful of potential triggers for a blinking cruise control light

To prevent future blinking cruise control light issues, it is essential to be mindful of potential triggers that can cause this problem. One common trigger is a loose gas cap, which can cause the check engine light to come on and disable the cruise control. Therefore, always make sure the gas cap is securely tightened after refueling. Additionally, issues with the wheel speed sensor, vehicle speed sensor, or the brake pressure shut-off switch can also lead to a blinking cruise control light. If you notice any unusual symptoms such as a loss of power, strange noises, or difficulty in accelerating, it’s important to have your Subaru inspected by a professional to identify and resolve any potential triggers for the 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.

Conclusion

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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