Are you experiencing an issue with your 2015 Mustang brake lights stay On, even when the brake pedal is not depressed? This can be a frustrating problem that can drain the battery and even result in a citation from law enforcement.
In this article, we’ll explore the possible causes behind this problem and offer some solutions to help you resolve it.
Contents
What Is Brake Light Functionality?
Brake lights serve as a signal to inform drivers behind you that you’re slowing down or coming to a stop. They are activated when you press the brake pedal, which completes an electrical circuit and illuminates the lights.
Common Causes of Brake Lights Staying On
There are several reasons why your Mustang’s brake lights may stay on when the brake pedal is not depressed. These include:
- Faulty Brake Light Switch: A faulty brake light switch is the most common cause of this issue. The switch is responsible for turning on the brake lights when the brake pedal is pressed and turning them off when it is released. If the switch is stuck in the on position, the brake lights will remain on.
- Blown brake light fuse: if the fuse that controls the brake lights has blown, the brake lights will not turn off.
- Low brake fluid level: if the brake fluid level is low, it can trigger the brake light to stay on as a warning to the driver.
- Brake Booster: A malfunctioning brake booster can also cause the brake lights to stay on. The brake booster is responsible for assisting in the braking system, and if it is not working correctly, it can cause the brake light switch to malfunction.
- Failed Brake Light Relay: The brake light relay is responsible for controlling the flow of electricity to the brake lights. If the relay is faulty, it may send a continuous signal to the brake lights, causing them to stay on.
- Misaligned Brake Pedal: If the brake pedal is misaligned, it may not fully return to its resting position, causing the brake lights to stay on.
- Damaged Brake Light Wiring: If the wiring that connects the brake lights to the switch is damaged, it can cause the brake lights to stay on.
- Failed BCM: The BCM (Body Control Module) is responsible for controlling the lighting system on your Mustang. If the BCM fails, it can cause the brake lights to stay on.
How to Solve 2015 Mustang Brake Lights Stay On Issue?
Solving the issue of brake lights staying on will depend on the cause of the problem. Here are some steps you can take to fix the issue:
- Replace the Brake Light Switch: If the brake light switch is faulty, you will need to replace it. You can purchase a replacement switch from a local auto parts store or online.
- Replace the brake light fuse: if the fuse is blown, replace it with a new one.
- Add brake fluid if necessary: if the brake fluid level is low, top it up to the recommended level.
- Check the Brake Booster: Inspect the brake booster and ensure that it is functioning correctly. If it is not, you may need to replace it.
- Replacing the Brake Light Relay: If the brake light relay is faulty, you can replace it with a new one. The relay is typically located in the fuse box under the hood of the car.
- Adjust or Replace the Brake Pedal: If the brake pedal is misaligned, you may need to adjust it or replace the pedal assembly. This is a job best left to a professional mechanic.
- Repair or Replace the Brake Light Wiring: If the wiring is damaged, you will need to repair or replace it. Again, this is a job best left to a professional mechanic.
- Replace the BCM: If the BCM has failed, you will need to have it replaced by a professional mechanic.
Prevention and Maintenance Tips
Preventing the issue of brake lights staying on can be done through regular maintenance of the Mustang. Here are some tips to keep in mind:
- Have your brakes inspected regularly by a professional mechanic.
- Keep the brake pedal and brake light switch well lubricated to prevent them from sticking.
- Inspect the wiring that connects the brake lights to the switch for damage.
- Replace any worn or damaged parts as soon as possible to prevent further damage.
- If you experience any issues with the brake lights, have them inspected by a professional mechanic immediately
Maintaining the Brake Light System
In addition to preventing issues, it’s also important to maintain your brake light system to ensure that it’s working properly. Here are some tips to help you maintain the brake light system
- Check brake lights regularly: Check brake lights regularly to ensure that they’re working properly. You can do this by having someone stand behind your Mustang while you press the brake pedal.
- Keep lenses clean: Dirty lenses can reduce the visibility of brake lights. Clean lenses regularly to ensure that they’re working properly.
- Replace burnt-out bulbs: If you notice that one or more of the brake lights aren’t working, replace the burnt-out bulb as soon as possible.
- Replace old or worn-out wiring: If you notice that the wiring is old or worn out, replace it as soon as possible to prevent any issues.
Frequently Asked Questions (FAQs)
Q: Can I fix the problem myself?
A: If you have experience with automotive repairs, you may be able to fix the problem yourself. However, it’s recommended that you take your car to a certified mechanic to diagnose and repair the issue.
Q: Will the brake lights stay on drain my car’s battery?
A: Yes, if the brake lights stay on for an extended period of time, they can drain your car’s battery and potentially leave you stranded.
Q: Is it safe to drive my car with the brake lights staying on?
A: No, it is not safe to drive with the brake lights staying on. Other drivers may become confused and not realize when you are actually braking, which can increase the risk of an accident.
Q: How much will it cost to fix the problem?
A: The cost of repairing the issue will vary depending on the cause of the problem and the mechanic you choose. It’s best to get a quote from a certified mechanic before proceeding with the repairs.
Q: Can I prevent this issue from happening again in the future?
A: Regular maintenance and inspections of the car’s brake system can help prevent this issue from happening again. It’s important to have the brakes checked and serviced regularly to ensure they are functioning properly.
Q: Will the brake light switch need to be adjusted after it is replaced?
A: Yes, the brake light switch may need to be adjusted after it is replaced to ensure that the brake lights are turning on and off correctly. This adjustment can be done by a certified mechanic.
Conclusion
The issue of 2015 Mustang brake lights stay On is important to address as soon as possible to prevent further damage and avoid any legal issues. By understanding the potential causes behind the issue and following the diagnostic and solution steps outlined in this article, you can effectively address and resolve the problem of brake lights staying on unexpectedly.