Brake Light On Problems of GMC Envoy

My dash panel gauges began failing one by one. My headlights will sometimes not come on after starting the car with the headlight switch on auto. A flick of the headlight switch in and off, does not make the headlights come on. Sometimes they come on after driving around, and then will go off without touching the switch. Now, my side brakelights will not operate correctly when the brake pedal is pressed. Only the third brake light illuminates.

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Brake lights stopped working; the light bulbs work, but when you push in the breaks neither back brake lights come on. The only working break light is the middle top one. This is very dangerous.

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I began to have issues with my headlights, low and high beams, flickering off and on at random for about 4 months until my brake lights started to do the exact same 7 months ago and now they have quit working all together! I have taken this SUV to 4 different shops now, and nobody has been able to figure out why this is happening. The last mechanic who attempted to fix the issue, says he found an older recall on the original manufactured tag lights being malfunctioned to the point it causes issues with the front and back lights. The man shown me the information on this recall, seeing the part # is listed on there, I compared it to mine and a neighbor's 2002 Envoy; which both of our Envoys have these malfunctioned parts. Gm has not contacted us back, and we're at a loss because it's a part needed from them directly. We have spoken to many Envoy owners on a web forum, and there are hundreds maybe thousands of Envoys out there with these same issues, causing accidents on the road way too often! it's dangerous, and nobody will help with this irritating issue!.

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Tl- the contact owns a 2005 GMC Envoy denali xl. The contact stated abs and service brakes light illuminated on her instrumental panel. The contact took her vehicle to an independent mechanic. The mechanic stated the ebcm would need to be replaced however, only an authorized dealer would be able to perform the repairs and because a system update would need to be reformed as well. The vehicle was taken to an authorized GMC dealership. The dealer stated the part was on national back order and it would be unknown how long it would take reproduce the part needed. The vehicle was not repaired. The failure mileage was 100,000. The current mileage was 123,000. Az.

Abs and brake warning light comes on and off. Dealer said it was a bad brake module. And would not cover under warranty.

Transmission not shifting correctly, abs light, brake light, emergency brake light, 4-wd drive light, heat/ac crusie control not working. Found pi report, ignition switch replaced, fixed problem.

When contact comes to a yield sign transmission jerks before going into gear. Later he was told this was a brake problem. When approaching a hill/downhill and applying brakes they lock and car slides. Dozens of times check brake, service 4 wheel drive lights have come on. Contact has taken vehicle to dealer over 12 times since it has been purchased. Due service lights, brakes and transmission. Consistently told by dealer that nothing is wrong. But dealer aknowledges check brake lights have come on. Dealer states that if computer diagnostic does not produce an error code, then there is nothing they can do.

While driving t 75mph brake light illuminated indicating a malfunction. Vehicle then shut completely down, causing loss of all power. Please provide vehicle identication number, and any further information.