Problem started same week i purchase vehicle brand new. gmc would not exchange vehicle, they just kept repairing it as it broke down. i feel very unsafe in this vehicle, they did not care. clutch was rubbing against main line, failed twice. rear lights burned out 3 times, springs on seats popped out 3 times, gas pump went out once, heater/ac went out twice, locks would not open, 3 times, pain chipped off bumper, once. rear seat clips snapped, once. headlights, water leaked in. twice i had a head on collision in june/2007...air bag did not deploy. *jb