2010 Cadillac DTS Owner's Manual - Page 119

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 using the Remote Keyless Entry (RKE) transmitter, if the vehicle has one, 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. 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. 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. Lockout Protection If the key is in the ignition and the power door lock switch is used to lock the doors, all doors will lock and then the driver door will unlock. It is always recommended that the ignition key is removed from the vehicle when locking the doors. The lockout protection feature can be overridden by holding the power door lock switch for three seconds or longer. 3-11