I have an '04 chevy silverado crew cab. Every time I use the remote, or even use the switch on the driver's door, the back doors stay locked. I have to physically reach over the seat to pull the lock on the doors to unlock them. Does anyone have any suggestions to solve this problem?

 

check the door lock actuators in the rear doors or look for loose wiring connections to them.

 

in the door jamb there a rubber boot where the wires are ran the wires usally break there if not they are know for the actuators, it can also be the jem module

 

probably the rear door unlock relay..look in the i/p fuse box