What causes the handbrake light to stay on?
The handbrake light, also known as the parking brake warning light, is an essential indicator on your vehicle's dashboard. It alerts you to potential issues with your braking system. If this light stays on even after releasing the handbrake, it could indicate a problem that requires immediate attention. In this article, we’ll explore the common causes of this issue and what you can do to address it.
1. The Handbrake Is Not Fully Released
One of the simplest reasons for the handbrake light staying on is that the handbrake lever or pedal is not fully disengaged. This can happen if the handbrake mechanism is stiff or if it was not released properly. Double-check that the handbrake is fully down or in its disengaged position before assuming there’s a more serious issue.
2. Low Brake Fluid Levels
Brake fluid is crucial for the proper functioning of your braking system. If the fluid level is too low, the handbrake light may stay on as a warning. Low brake fluid can be caused by:
- Normal wear and tear of brake pads, which causes the brake fluid level to drop over time.
- A leak in the brake fluid system, which is a serious issue that needs immediate attention.
To check the brake fluid level, locate the brake fluid reservoir under the hood of your car. Ensure the fluid is between the "MIN" and "MAX" marks. If it’s low, top it up with the correct type of brake fluid as specified in your vehicle’s manual.
3. Faulty Handbrake Sensor
The handbrake system includes a sensor that detects whether the handbrake is engaged or disengaged. If this sensor malfunctions, it may cause the handbrake light to stay on even when the handbrake is fully released. A professional mechanic can diagnose and replace the faulty sensor if needed.
4. Worn Brake Pads
Some vehicles are equipped with sensors that monitor the condition of the brake pads. If the brake pads are excessively worn, the handbrake light may illuminate as a warning. Worn brake pads not only affect your braking performance but can also lead to damage to other components, such as the brake rotors.
5. Electrical Issues
Electrical problems, such as a short circuit or a damaged wire in the handbrake warning light system, can also cause the light to stay on. Diagnosing electrical issues can be complex and is best handled by a qualified technician.
6. Problems with the Master Cylinder
The master cylinder is a critical component of your braking system. If it develops a fault, such as a leak or internal damage, it can trigger the handbrake warning light. This is a serious issue that requires immediate professional attention to ensure your brakes remain functional and safe.
What Should You Do If the Handbrake Light Stays On?
If your handbrake light remains on after releasing the handbrake, follow these steps:
- Ensure the handbrake is fully disengaged.
- Check the brake fluid level and top it up if necessary.
- Inspect for visible leaks around the brake fluid reservoir or under the car.
- Schedule an appointment with a trusted mechanic to diagnose and fix the issue.
Driving with the handbrake light on can be dangerous, especially if it indicates a problem with your braking system. Address the issue promptly to ensure your safety on the road.
Conclusion
The handbrake light is a vital warning system that should never be ignored. Whether it’s a simple issue like a partially engaged handbrake or a more serious problem like low brake fluid or a faulty sensor, it’s important to identify and resolve the cause as soon as possible. At Kevin’s Autos, we specialize in diagnosing and repairing all types of brake system issues. Contact us today to schedule a service and keep your vehicle in top condition!
Frequently Asked Questions
Why wont my parking brake light go off?
Check your parking brake switch for loose, damaged wires.
If adding brake fluid doesn't turn off your light, your parking brake switch might be faulty. Look for the switch below your parking brake, pulling up the driver's side floor mat or middle console if you have a floor pedal or hand lever.
What two reasons would cause your brake system warning light to come on?
The most common reasons your brake light is on:
- The Parking Brake is engaged.
- Brake Fluid is low or leaking.
- Worn brake pads.
- The ABS System has failed.
- Brake lights burned out.
- Faulty sensors.
Why is my parking brake light on when it's not on?
Typically, your brake system warning light being on means your parking brake is engaged, but if you're still seeing the red (or orange) warning on your dash while the parking brake is disengaged, you will need to get your brakes inspected as soon as possible.
How do you know if your brake fluid is low?
If it feels soft or like you're stepping in quicksand, you're probably low on fluid. Strange Sounds - Any time you hear a strange sound when you brake should be a cause for concern. From a grinding sound to squeaky brakes, head to the service center if you hear anything out of the ordinary.
How do you fix a brake light that stays on?
Fixing this problem is as simple as replacing the switch, which is typically located on the backside of the brake pedal.
How do I clear my parking brake light?
Sometimes, the right solution is usually the simplest one. The reason why your parking brake light stays on is that you didn't properly disengage the lever or handle. The parking brake lever or handle must be completely lowered to disengage the braking system, so the light indicator goes away.
Why is my parking light on if the handbrake isn't pulled?
A malfunctioning parking brake light that stays on is due to a variety of reasons, including a faulty parking brake switch, low brake fluid level, bad brake fluid level sensor, faulty wiring, or a malfunction in the Anti-Lock Braking System.
Why is my brake light on but brakes work fine?
If your brake service warning light is always on, it could be due to a need for parking brake adjustment, worn brake pads, or hydraulic issues. If your brake service warning light turns on when you hit the pedal, it could be due to hydraulic loss on one side of your vehicle or low brake fluid in the master cylinder.
Can I drive with the brake light on?
Again, it is important that you do not continue driving and ignore the brake light, this can cause more damage to the braking system and be very dangerous. *Pro Tip: when you first turn on your vehicle, all the lights on the dashboard should illuminate.
How to fix handbrake light staying on?
Double-check that the handle is all the way down and that the hand brake is disengaged. Any pressure on the hand brake cable will cause the light to stay on. Parking Brake Not Disengaging: Sometimes the trouble isn't with the switch or the cables, but with the hand brake itself.
