1999 GMC Sonoma Owner's Manual - Page 102

yellowblue Exit Lighting With exit lighting, the interior lamps will come on when you remove the key from the ignition to help you see while exiting the vehicle. These lights will stay on for a short period of time and then will go out, if the DOME OVERRIDE button is in the "out" position. Front Map Lamps (If Equipped) If your vehicle has front map lamps, they are located on the inside rearview mirror. They will automatically come on for approximately 40 seconds when the doors are unlocked with the keyless entry transmitter (if equipped) or until the ignition key is turned to RUN or ACCESSORY. The lamps will also stay on for approximately 40 seconds after you exit the vehicle, unless you lock the doors with the keyless entry transmitter. You can also turn the lamps on and off by pressing the switch near each lamp. You can use the DOME OVERRIDE button, located below the parking/headlamp knob, to set the dome lamps to come on automatically when the doors are opened, or to remain off. To turn the lamps off, press the button into the "in" position. With the button in this position, the dome lamps will remain off when the doors are open. To return the lamps to automatic operation, press the button again and return it to the "out" position. With the button in this position, the dome lamps will come on when you open the door. This will override the illuminated entry feature, unless you use your keyless entry transmitter to unlock the vehicle. Battery Run-Down Protection This feature shuts off the dome, courtesy, vanity, reading, glove box, cargo and underhood lamps if they are left on for more than 20 minutes when the ignition is off. This will keep your battery from running down. If the battery run-down protection shuts off the interior lamps, it may be necessary to do one of the following to return it to normal operation: Dome Lamps The dome lamps will come on when you open the doors. You can also turn the dome lamps on by turning the thumbwheel, located next to the parking/headlamps knob, all the way up to the top detent position. In this position, the dome lamps will remain on whether the doors are opened or closed. D Shut off all lamps and close all doors, or D Turn the ignition key to RUN. 2-44