1997 Buick LeSabre Owner's Manual - Page 107

Battery Rundown Protection This feature turns off the courtesy, reading, trunk, glove box and visor vanity mirror lamps, if any are left on for more than 10 minutes when the ignition is OFF. This will keep your battery from running down. This feature also shuts off the exterior lamps if they are left on for more than 10 minutes when the ignition is OFF. You may override this feature for the exterior lamps by turning the lamps off and then back on after the ignition is turned to OFF. If you do this, the exterior lamps will stay on until you manually turn them off. If the feature is enabled for the interior and exterior lamps, all lamps should turn off at approximately the same time. Mirrors Day/Night Manual Rearview Mirror When you are sitting in a comfortable driving position, adjust the mirror so you can see clearly behind your vehicle. The day-night adjustment on the bottom of the mirror allows you to acljust the mirror to avoid glare from the headlamps behind you. 2-47