Hello! I have a black 2006 Impala LT I bought used a few months back. I have a problem where neither of the door unlock buttons work. The lock buttons work, however. I have to order a key fob so I haven't tried that yet. The doors do lock and unlock with the shifter as normal, so I'm not sure what the issue is. Any help would be greatly appreciated.

P.S.- Can a dealership find me a door lock cylinder to match my ignition key? Apparently my driver door has been replaced at some point.

 

My 2007 Impala LT did the same thing with the drivers door lock switch. At first it would lock also ,then nothing. I put a new switch in , that did it. The old switch contacts were corroded, so you might be able to clean the contacts.

Chris