2005 Buick Century Owner's Manual - Page 73

The vehicle was originally programmed to Mode 3. The mode may have been changed since then. To determine the current unlock mode, or to change the unlock mode, do the following: 1. Close all doors and turn the ignition key to RUN. 2. Press and hold the power door lock switch in the unlock position. 3. While holding the power door lock switch in the unlock position, press and release the remote keyless entry transmitter UNLOCK button. A series of one to four chimes will sound, corresponding to the current unlock mode. 4. Press the remote keyless entry transmitter UNLOCK button to advance to the next unlock mode. If cycled beyond Mode 4, the vehicle will enter Mode 1. 5. To set a mode, release the power door unlock switch after the chime sequence of the desired mode is heard. Delayed Locking This feature can be turned on or off. It delays the locking of the doors for five seconds after the LOCK position on the power door lock, or the LOCK button on the remote keyless entry transmitter is pressed and the last door is closed. If a door is opened before five seconds, the delayed lock is cancelled. When all doors are closed again, delayed locking begins again. Three chimes will sound to indicate that this feature is on. The chime will sound only when the key is not in the ignition and a door is open. To cancel delay locking, do any of the following: • Press the unlock portion of the power door lock switch. • Press the UNLOCK button on the remote keyless entry transmitter. • Press the LOCK portion of the power door lock switch a second time. • Press the LOCK button on the remote keyless entry transmitter a second time. • Insert the ignition key into the ignition. 2-7