1999 Buick LeSabre Owner's Manual - Page 98

yellowblue The exterior lamps can be completely shut off while the vehicle is in PARK (P) by sliding the twilight sentinel control all the way toward MIN, and release. To turn the exterior lamps back on, slide the control all the way toward MIN again, and release; or, shift out of PARK (P). Light Sensor Your twilight sentinel and DRL work with the light sensor on top of the instrument panel. Don't cover it up. If you do, the sensor will read "dark" and the headlamps will turn on. Interior Lamps Instrument Panel Intensity/Brightness Control The instrument panel intensity can be adjusted by moving this lever between LO and HI. The instrument panel lights will be on only when the headlamps are on. The interior courtesy lamps can be turned on by sliding the lever all the way to the right, to INT. Courtesy Lamps When any door is opened, several lamps go on. They make it easy for you to enter and leave the vehicle. You can also turn these lamps on by sliding the PANEL LIGHTS switch to INT (Interior). 2-42