First problem occurred in 2008, driving to work in 2003 GMC Envoy slt (original owner) heard clunking noise when downshifting. Took car in to shop for repair (just over 50K miles so out of warranty). Shop explained that the transmission needed to be replaced $4000 with one year warranty. Since I was planning on driving cross country decided to do the repair. One year later, driving and trying to accelerate on a ramp to find SUV stuck in second gear and wouldn't accelerate while RPM kept going up. Also heard clunking when downshifting. Pulled over and tried to get gears to shift by slowing down and speeding up (to get RPM to drop). Drove car to dealer who stated I needed a new transmission (again). Dealer removed transmission and "found input bushing in pump bad. And reverse drum. And had heavy metal contamination". when asked why this is my third transmission in six years the service agent said "bad luck". both replacement transmissions were rebuilds. The current transmission is not under warranty.

- State College, PA, USA

Purchased 2003 GMC Envoy slt on 11/30/2002. Service airbag light came on as I was driving the vehicle off the lot. Returned to dealer for repair. Dealer said it was a loose wire in the sensor. One month later service airbag light came on again. Returned it to dealer, could not determine problem so they replaced the passenger side airbag. Service air bag light is on again. This is the third time. Also have had intermittent problems with the brakes. When approaching a stop light have had instances where the car will not stop, and the brake pedal is to the floor this has happened 3 times. Took it into the dealer and was told this is the way the brakes function on this vehicle"???" have had intermittent problems with the 4 wheel drive. The lights on the 4 wheel drive indicator will flash from 2hi all the way to 4 whl drive without every touching the control. Extremely disappointed in this vehicle for the cost and unfortunately have a 4 year lease. Will not recommend or purchase another GMC product.

- Novi, MI, USA