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 Sonoma Door Locks Stop Working
GMC Sonoma Problem
Average Mileage: 174,000 mi (92,000 mi - 241,003 mi)
haven't repaired yet.
Visitor, 1992 GMC Sonoma, 219,000 mi
it wontr lock all the way