Hi everyone, Im new to the site so I apologize if this has been asked before. I have an 04 gmc sierra 1500 ext that Im having some issues with. From the driver side door I can lock the truck but not unlock it. From the passenger side I can both lock and unlock the truck. When I put the truck in park the driver side door will unlock but not the passenger side. The remote key is working fine. Is this an actuator problem on the driver side? Any help would be greatly appreciated. Thanks