2011 Chevrolet Impala Owner's Manual - Page 39

Keys, Doors and Windows 2-9 Lockout Protection This feature helps prevent you from locking the doors while the key is in the ignition. Always remember to take your key with you when exiting the vehicle. If the lock switch is pressed on the door that is open and the key is in the ignition, all of the doors will lock and then the open door will unlock. A chime sounds continuously until the driver door is closed. To assist in finding the lock, the vehicle has the following: To open a rear door when the security lock is on, do the following: 1. Unlock the door by using the Remote Keyless Entry (RKE) transmitter, if the vehicle has one, by pressing the power door lock switch, or by lifting the rear door manual lock. 2. Open the door from the outside. To cancel the rear door security lock: 1. Unlock the door and open it from the outside. Safety Locks Rear door security locks prevent passengers from opening the rear doors from the inside. The rear door security locks are located on the inside edge of each rear door. The rear doors must be opened to access them. To use the lock: 1. Insert the key into the security lock slot and turn it so the slot is in the horizontal position. 2. Close the door. 3. Do the same for the other rear door. 2. Insert the key into the security lock slot and turn it so the slot is in the vertical position. 3. Do the same for the other rear door.