2005 Buick Park Avenue Owner's Manual - Page 74

There are several ways to lock and unlock your vehicle. To lock or unlock the driver's door from the outside, use your door key or remote keyless entry transmitter. 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 doors on your vehicle using either the driver's or the front passenger's power door lock switch. To lock or unlock the doors from the inside, move the manual lock on the door handle forward or rearward. 2-10