Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hello! I see this quite a bit! The passenger door switch assembly is actually a computer, called the Passenger Door Module (PDM). The PDM controls all functions of the passenger door AND the keyless entry (it acts as the receiver for the transmitters). Like any home or laptop computer, it can lock up and need to be rebooted. To perform this reboot, look in the Left Fuse Panel (on the left side of the dash, you have to open the drivers door to access it (remove the cover) and look for the PDM fuse. Remove this fuse for 10 minutes and then re-install and check for the functions of the door.
If that doesn't help, then you will need to manually disconnect the PDM at the door.