The power door locks may stop working in one or more doors due to a failed actuator. Replacement of the failed actuator should correct this concern.Google+
Car Problem Reports
GMC Envoy Door Locks Stop Working
GMC Envoy Problem
Average Mileage: 81,900 mi (35,000 mi - 164,000 mi)
Visitor, 2007 GMC Envoy, 80,000 mi
My windows won't go down just started today or up and the doors won't lock or unlock
Visitor, 2007 GMC Envoy, 82,500 mi
Rear hatch or window will not open.
Visitor, 2007 GMC Envoy, 35,000 mi
drivers door control module was corroded and quit. I paid for half the repair, since it was a used car
Visitor, 1998 GMC Envoy, 48,000 mi
Replaced one rear door actuator. Went out again and the other door too!