Skip the auto shop - Our mechanics make house calls
  1. Home
  2. Articles
  3. Symptoms of a Bad or Failing Parking Brake Warning Switch

Symptoms of a Bad or Failing Parking Brake Warning Switch

parking brake warning light

The parking brake warning switch is a part in your vehicle that will alert you if one of your brake circuits is not working correctly. Most vehicles have two hydraulic circuits, one that applies the front brakes, and one that applies the rear brakes. If one of the circuits loses fluids or develops a leak, the parking brake warning switch is tripped.

Brake Warning Light comes on

As soon as the brake warning switch is tripped, the Brake Warning Light will come on. This is the main indication that there is a problem with the switch. As soon as you see the Brake Warning Light, contact the professionals at YourMechanic to schedule a diagnostic, or to replace the brake warning switch.

Brighter warning light

The Brake Warning Light is used to indicate an issue with both the braking system and the parking brake. There is a difference between how bright the actual warning light illuminates, which can help you tell the difference between the two. If there is a problem with the parking brake, the switch will close. This circuit normally has a lower resistance, which causes the Brake Warning Light to shine brighter while the parking brake is applied.

Do not drive

It is important not to drive when the Brake Warning Light is illuminated. Since it does not give a specific diagnostic, it is hard to tell whether it is the main braking system or the parking brake that needs to be repaired. Even if you suspect the Brake Warning Light is brighter, it is still a safety concern driving with a bad parking brake. If your warning light is illuminated on your dashboard, contact the professionals at YourMechanic for further advice. It is best to stay safe and find an alternative form of transportation until your vehicle is repaired and is safe to drive again.

If your Brake Warning Light comes on, no matter how bright it is, book a service online 24/7 at YourMechanic. The professionals will be able to properly diagnose your braking system or parking brake issue. The parking brake warning switch is difficult to diagnose and repair on your own, and is an important safety feature of your vehicle because it tells you when there is a problem with your brakes. Therefore, it should be serviced by the technicians at YourMechanic to ensure it is in proper working order. YourMechanic’s professional technicians are available for any questions you may have regarding a brake warning switch fault.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Still not sure about your car's issue?
Diagnose your car
What kind of issue are you experiencing?
Brakes are squeaking
Car is not starting
Car is overheating
Car is shaking (vibrating)
Fluids are leaking
Heating and A/C
Smoke or steam is coming out of the car
Warning light is on

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.


More related articles

Veteran and Military Driver Laws and Benefits in New Mexico
The state of New Mexico offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch...
P2422 OBD-II Trouble Code: Evaporative Emissions Control System (EVAP) Vent Valve Stuck Closed
Diagnostic Trouble Code (DTC): P2422 P2422 code definition Evaporative Emissions Control System (EVAP)...
Auto Safety Tips
Driving is more than a way to get from point A to point B. Owning and driving a car can also be a highly enjoyable experience. Whether a person is driving...

Related questions

Q: Brake pedal quit working once

Absolutely. Get this puppy checked out thoroughly before driving it further to avoid a dangerous problem. Something isn't right - possibly a problem with the brake fluid or brake cylinders. Not having reliable brakes is a serious safety hazard. If...

Q: My car gets hot while sitting but cools down driving is it ok

Hello there, thank you for asking about your 2013 Hyundai Elantra. This could be a couple of things such as a faulty thermostat that is stuck open or closed or potentially a faulty coolant fan switch. When the coolant fans...

Q: There is a squeaky noise coming from the right side of the vehicle.

Hello. If adjusting the e-brake helped then the issue is usually in the e-brake shoes. It is common for the hold down hardware for the brakes to wear out allowing the brakes to shift. When this occurs they will rub...