Question about 2004 GMC Envoy
Brake lights work only when braking hard. this problem is not consistent sometimes they work properly.
Yes Bonedivers is right when he says it is probably the brake-light switch which is located on the arm of your brake pedal under the dashboard. Most of them are easily replaced and not real expensive. That is the cheapest route to go first.
Posted on Jul 29, 2009
Brake switch under dash bad or out of adjustment.
Posted on Jul 27, 2009
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Posted on Jan 02, 2017
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