2003 Pontiac Bonneville Owner's Manual - Page 76

To unlock the door from the outside, use your door key or remote keyless entry transmitter (if equipped). Turning the door key toward the rear of the vehicle will unlock the door. Turning the door key toward the front of the vehicle will lock it. Central Door Unlocking System If your vehicle has a theft-deterrent system, all doors will unlock if the key is held in the outside key cylinder unlock position for more than two seconds. The doors will also unlock if the key is turned to the unlock position twice in three seconds. Power Door Locks With power door locks, you can lock or unlock all the doors on your vehicle using the driver's or front passenger's door lock switch. To lock the door from the inside, push the manual door lock forward. To unlock the door, push the manual door lock rearward. 2-11