2005 Chrysler PT Cruiser Owner's Manual - Page 21

THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 21 2. Cycle the ignition switch ON/OFF four times ending in the OFF position. 3. Press the interior door lock switch to the LOCK position. 4. A single chime will sound to signify that you have successfully completed the programming. You can turn the feature back on by repeating the above mentioned procedure. "Child-Protection" Door Lock System (Rear Doors) To provide a safer environment for children riding in the rear seat, the rear doors have the "child-protection" door lock system. To use the system, open each rear door and move the control UP to engage. When the system on a door is engaged, that door can only be opened by using the outside door handle even if the inside door lock is in the unlocked position. 2 Child Lock Control