KEY WONT UNLOCK THE DOOR NOR WILL MY KEY FOB AND I HAVE CHANGED OUT THE BATTERY IN THE FOB
I HAVE A 2006 chevy trailblazer that I took away from my son and I have tried to unlock the vehicle with the key but that wont work and the key fob I have for it wont unlock the car either and I have replaced the batteries in both the vehicle and the fob??