1994 Cadillac DeVille Owner's Manual - Page 132

P m MapIReading Lights You have map lights located in the overhead.pane1.Push the button to illuminate thelight. The rear interior courtesy lights will come on when you open a door, or turn on theinterior lights. If your vehicle.is equipped with the optionalastrormf, you can illuminate the rearlights by-pressingthe lens; Push it again to turn themoff. P 119