Six problems related to brake electric antilock have been reported for the 2003 GMC Envoy. The most recently reported issues are listed below.
The vehicle was in service 3 times within 14 days, gm says the problem was the ignition switch, I say the source of the problem has not been fixed. Engine stalled 6 times in moving traffic, the "abs" warning light is on, some time the "check engine soon" light comes on. Dealer replaces throttle body injection assembly. Next day the vehicle stalls again with same symptoms. Dealer replaced ignition switch again. !4 hours later engine stalls in moving traffic. Dealer installs event recording device, engine stalls and identified low ignition voltage (6. 7 vs 13. 6 vdc). Source of problem could not be identified, dealer says vehicle is safe to drive. We filed a lemon law claim.
2003 general motors GMC Envoy xl did not provide sufficient braking when brakes were strongly applied in a low speed (10-15 mph) sudden stop resulting in a minor front end collision with the back of another vehicle that came to an abrupt stop. Even though the brake pedal was strongly applied, the vehicle took more distance to stop then expected. Vehicle was taken to dealership for inspection, but dealership did not acknowledge finding any problem. This vehicle does not have adequate stopping power in emergency situations.
When reaching a stop sign consumer applied pressure on the brakes, instead of vehicle coming to a stop, it accelerated and ran onto two curbs, finally crashing into a play ground.
Consumer stated the rotors and brakes were rusted. This resulted in extended stopping distance.
My wife was driving around 35 mph during a clear day when suddenly the steering wheel of our 2003 GMC Envoy started wobbling and she couldn't control it anymore. She stepped on the brakes but the vehicle wouldn't stop. The vehicle went over the curb and initially hit a utility pole on the left passenger side, then eventually hit the tree with the front bumper and knocked the two stationary objects down. Surprisingly, the airbag didn't even deploy. The insurance company declared the vehicle total wrecked and unrepairable. As expected, GMC declined responsibilities. They sent a so called independent investigator but they wouldn't give me his phone number. The report they sent contained only raw data about the airbag and nothing about the steering wheel. I will never buy or recommend a GMC again.
While traveling mph and when depressing brakes pedal traveled to the floorboard which caused extended stopping distance resulting into a crash.