Power Door Locks Not Working Problems of GMC Sierra

All four door locks were intermittently inoperative & only able to function manually from the inside. Taken to dealer and diagnosed as internal failure in door lock assemblies/actuators. All four door lock assemblies were replaced at a customer cost of $900+. This is my second GMC vehicle that has had the same problem and after searching the internet this seems to be a fairly common problem. Even the dealership mechanic mentioned surprise that it has not been recalled or GMC has not been forced to fix the problem considering how often he had personally diagnosed & fixed this same problem. This is definitely a safety issue as the customer is unable to rely on the door lock system or lock/unlock the doors as usual. Multiple times, my vehicle sat at the airport for days unlocked because of this failure. Similarly, my toddler-aged children were able to open the doors to the backseat with the vehicle in motion due to the failure in the automatic assembly.

See all problems of the 2008 GMC Sierra 🔎.