Question about 2000 GMC Sierra

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Brake lights don't work

My brake lights do not work and I changed the relay and the bulbs and they still don't work can the brake switch not be working

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  • Lbigfish777 Apr 17, 2009

    Where is the turn signal switch?

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I assume you checked all the fuses. if all the brake lights are not working it could be the brake switch.if the third brake light is working and the two side lights are out it could be a turn signal switch problem. The stop light circuit also runs through your turnsignal switch.

Posted on Apr 17, 2009

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