2007 Chevrolet Impala Owner's Manual - Page 101

To unlock the driver's side door from the outside with the key, insert the key and turn it counterclockwise. To lock the driver's side door from the outside with your key, insert the key and turn it clockwise. To lock the door from the inside, push the manual lock knob down. To unlock the door, pull the knob up. Power Door Locks A power door lock switch is located on both front doors next to the door handle. Press the top of the switch to unlock all doors, or press the bottom of the switch to lock all doors. If your vehicle has the optional content theft-deterrent system and it is armed, the power door lock switches will be disabled. You must use your remote keyless entry transmitter or your key to unlock the doors when the system is armed. See Content Theft-Deterrent on page 107. 101