The most recently reported issues are listed below.
2003 tahoe door lock problems.
Problem with your 2003 chevrolet tahoe.
The faulty door lock actuators prevent locking or unlocking of the doors from the drivers seat.
The front door lock actuators failed at 12k miles and were replaced under warranty.
I own a 2008 chevy tahoe hybrid with 26k miles.
Our list of 31 known complaints reported by owners can help you fix your 2003 chevrolet tahoe.
Average failure mileage is 103 000 miles.
The rear door lock actuators failed at 25k miles.
The 2003 chevrolet tahoe has 1 problems reported for power door locks not functioning.
Chevrolet tahoe owners have reported 5 problems related to power door locks not working under the electrical system category.
Also please check out the statistics and reliability analysis of chevrolet tahoe based on all problems reported for the tahoe.
Once locked the remote will unlock all doors including the back doors so i know there is power to the back door locks.