Gmc Sierra Third Brake Light Stays On

3rd brake light stays on 2008 gmc sierra oct 11 2018 6 31pm these trucks actually have 2 switches in the pedal assembly one that gets voltage from the bcm the chmsl and another from fused battery power l r and trailer brake controller.

Gmc sierra third brake light stays on.

Maintenance repair break lights wont go off. 3rd brake light stays on 2008 gmc sierra. I have changed the break light sensor and check the third break light fuse. The only way to turn off the third brake light is to remove the fuse 49.

This did not work. Did you buy a aftermarket 3rd brake light and when you plug it in it stays lite up. Moreover you can blame most of these problems on little or no maintenance according to james e. Both of my regular brake lights work correctly but the third brake light doesn t.

On my 2008 gmc sierra 4x4 i was having problems with my brake lights staying on. You dont have to cut the yellow. I have replaced the break light switch. 3rd brake light for 1999 2007 chevrolet silverado gmc sierra 1500 2500hd 3500 third cargo lamp high mount stop light reversing light red lens 4 6 out of 5 stars 100 27 98.

Chances are the cause of the defective light or brake lights circuit on your chevy silverado is a simple problem. My third brake light won t turn off even when my truck is off. This is what i did to fix my problem.