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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 29447
Experience:  GM Grand Master Technician 2007. 14 years experience.
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Chevrolet Silverado 1500: My brake lights are stuck on when

Customer Question

My brake lights are stuck on when the switch is on then don't work at all when the switch is off brake light above the back window works fine
Submitted: 1 year ago.
Category: Chevy
Expert:  GM Tech (Cam) replied 1 year ago.
Hello, I'm Cam.
Can I get your first name please?
This may be a sticking relay in the underhood fuse block. Can you start by checking those relays and see if that has any impact on the brake lights?
Als then tell me if the signals work at all.
Customer: replied 1 year ago.
Robert
Customer: replied 1 year ago.
Signals work just fine running lights work
Expert:  GM Tech (Cam) replied 1 year ago.
OK Robert. Did you have a chance to look at the brake light relay?
Customer: replied 1 year ago.
I can hear it clicking not sure what to look for
Customer: replied 1 year ago.
There's a white wire that runs along the driver side frame with the rest of the wires and it's comes on when I hit the break Pedal
Expert:  GM Tech (Cam) replied 1 year ago.
This one is under the hood in the fuse block. Remove it and see if that makes the lights go out
Customer: replied 1 year ago.
I pulled all of the relays and the lights are still on , they come on when the switch is on they won't come on when the switch is off
Customer: replied 1 year ago.
When I pulled the 50 amp fuse that is right next to the relay the relay clicks lights don't change stay on
Expert:  GM Tech (Cam) replied 1 year ago.
OK, maybe I need to ask, what switch?