Door locks (Remote and switch on door), remote start

[cleevesj]

Hi everyone!

Just bought an 08 Tahoe yesterday. Got home and tried to lock the doors and did not work.
If I press the lock button twice on the fob, the light flash and horn sound activating the alarm as it should. Just does not lock or unlock. When I press the switch on the door, I can hear a module clicking under the dash but can not find where it is coming from???? This is affecting all four doors and the rear hatch. The Hatch will lock by using the fob but will not unlock. If I unlock from the switch on the door, the hatch will unlock.

Any Ideas???

Thanks!

 

[CodeB4U]

May want to get your RCDLR checked out to make sure that it's set up properly. Hopefully that can just set up the RCDLR through the tech2. Do the door locks, lock or unlock with the switch on the door panel?