GMC Sierra parking brake light stays on

08-30-2013, 04:25 PM

We have a 2001 GMC Sierra 4.8L 1/2 ton 2WD that we use to tow sometimes. The parking brake light is staying on. I put new shoes on it, they're adjusted correctly and hold tight, and also replaced the electrical switch under the dash that is connected to the actuating foot pedal. Light is still on. Took it to the GM garage (which we never do and goes against everything in me) and after two days they can't figure it out either.

The weird thing to me is that the last time we towed it came on instantly after I disconnected the trailer wire from the plug in the back. ??? I don't know how but I'm thinking it has something to do with the trailering wire and/or brake controller (all of which works fine).

Anyone have any ideas what it could be? Is there a way to disconnect it? We have state inspections in Texas and ours is up next month and I'm not sure if it will pass with the light on even if the parking brake works fine.

Thanks.

08-30-2013, 04:25 PM	#1
Tar Heel Guest Posts: n/a	GMC Sierra parking brake light stays on We have a 2001 GMC Sierra 4.8L 1/2 ton 2WD that we use to tow sometimes. The parking brake light is staying on. I put new shoes on it, they're adjusted correctly and hold tight, and also replaced the electrical switch under the dash that is connected to the actuating foot pedal. Light is still on. Took it to the GM garage (which we never do and goes against everything in me) and after two days they can't figure it out either. The weird thing to me is that the last time we towed it came on instantly after I disconnected the trailer wire from the plug in the back. ??? I don't know how but I'm thinking it has something to do with the trailering wire and/or brake controller (all of which works fine). Anyone have any ideas what it could be? Is there a way to disconnect it? We have state inspections in Texas and ours is up next month and I'm not sure if it will pass with the light on even if the parking brake works fine. Thanks.