2003 Buick Regal Owner's Manual - Page 121

Delayed Exit Lighting This feature illuminates the interior for a period of time after the ignition key is removed from the ignition. The ignition must be off for delayed exit lighting to work. When the ignition key is removed, interior illumination will activate and remain on until one of the following occurs: The ignition is in RUN, or the power door locks are activated, or an illumination period of 25 seconds has elapsed. If during the illumination period a door is opened, the timed illumination period will be canceled and the interior lamps will remain on. 1. Turn the ignition to RUN. 2. Close all the doors. 3. Apply your brakes. 4. Press and hold the power door lock switch. While holding the door lock switch press and release the panic button on the remote keyless entry transmitter. Perimeter Lighting Perimeter lighting provides a period of exterior vehicle lighting. Perimeter lighting is only activated when the function is enabled, the doors are closed, the ignition is in OFF and the security feedback feature is in Mode 3 or 4. See "Security Feedback under Remote Keyless Entry System Operation on page 2-4 for more information. The vehicle headlamps and back-up lamps are then activated for a period of 25 seconds or until the ignition switch is turned to RUN. You may enable or disable the perimeter lighting feature when the driver performs the following sequence with the engine not running and the doors closed: 3-16 This will initialize the customization mode. While in the customization mode, the feature will sound the number of chimes corresponding to the current mode. In Mode 1, one chime means the feature is disabled. In Mode 2, two chimes signal that the perimeter lighting feature is enabled. Each additional press will advance the mode by one, starting from the current mode. During this procedure, the feature will sound the number of chimes corresponding to the mode. When the lock switch is released, the vehicle will remain in the last mode. Disconnecting the vehicle's battery for up to a year will not change the programmed operation for this feature. Reading Lamps The reading lamps are located on the underside of the rearview mirror. Use the button next to each lamp to turn them on and off.