The power door lock actuators may become slow to operate or stop working completely and require replacement.Google+
Car Problem Reports
Chevrolet Tahoe Power Door Lock Actuators May Fail
Chevrolet Tahoe Problem
Average Mileage: 94,697 mi (14,900 mi - 250,000 mi)
Yep, power door locks no longer work. Pain in the ass to use the key and likewise for the rear door elect lock no longer works
Visitor, 2008 Chevrolet Tahoe, 64,000 mi
both left side accuators failed looking to repair myself
Visitor, 2009 Chevrolet Tahoe, 78,000 mi
Front passenger door does not lock or unlock! 2009 Chevy Tahoe
Visitor, 1998 Chevrolet Tahoe, 200,000 mi
Lock button aint working after I changed fuse
Visitor, 2008 Chevrolet Tahoe, 40,000 mi
Power locks would work
Dealership repair, several hundred for the front only
Visitor, 1999 Chevrolet Tahoe, 115,000 mi
Driver door latch and rear latch will not open with power, have to use key from outside
Visitor, 2001 Chevrolet Tahoe, 95,000 mi
Back door (cargo door) lock actuator replaced @ 95,000 miles. Replaced again @ 170,000. Needs replacing again now @ 220,000 miles. I think there may be a design flaw here.
Both rear door lock actuators failed starting around 38000 miles. I replaced them both myself. Now at 52000 miles, and a 6 year old truck, the front passenger door lock actuator is now dead. I called Chevrolet and they said sorry not our problem. I said really, three out of the four fail and its not a manufactures defect. This is my last GM product. They wont stand behind their products. They must be paying to much out to pay for failed ignition switches to help anyone else with the junk they purchased from GM. Im a Ford Customer from now own. Thanks for nothing Chevrolet.
Back cargo door lock actuator failed. (not lift gate model) so I can't find an
y replacement parts. Need help with part location.
Visitor, 2008 Chevrolet Tahoe, 91,000 mi
driver power door lock actuator failed