1999 Buick Regal Owner's Manual - Page 66

yellowblue The operating mode of the Programmable Automatic Power Door Locks will be changed when the driver performs the following sequence with the engine not running, the doors closed and the ignition key in RUN: 1. Apply your regular brakes. 2. Press and hold the power door lock switch. While holding the door lock switch, move the shift lever out of and back into PARK (P). After an initial transaxle cycle, each additional cycle will advance the operating mode by one, starting from the current operating mode. During this procedure, the automatic door lock and unlock functions will operate as defined by each mode above, providing the driver with feedback of the current operating mode. If cycled beyond Mode 4, the vehicle will enter operating Mode 1. When the door lock switch is released, the vehicle will remain in the most recent operating mode. Disconnecting the vehicle's battery for up to a year will not change the programmed mode of the Programmable Automatic Power Door Locks. Your vehicle is equipped with rear-door child security locks that help prevent passengers from opening the rear doors of your vehicle from the inside. To use one of these locks: 1. Open one of the rear doors. Rear-Door Child Security Locks 2-6