1993 Cadillac DeVille Owner's Manual - Page 107

If a bulb is burned out, replace it to help avoid an accident. If the green arrows don't go on at all when you signal a turn, check the fuse (see bulbs. "Fuses" in the Index) and for burned-out Operation of Lights Although your vehicle's lighting system (headlights, parking lights, fog lamps, side marker lights and taillights) meet all applicable federal lighting requirements, certain statesand provinces may apply their own lighting regulations thatmay require special attention before you operate these lights. For example, some jurisdictions may require thatyou operate your lower beam lights with fog lamps at all times, or that headlights be turned onwhenever you must use your windshield wipers.In addition, most jurisdictions prohibit driving solely with parking lights, especiallyat dawn or dusk. It is recommended that you check with you ownstate or provincial highway authority forapplicable lighting regulations. Headlight High-Low Beam To change the headlights from low beam to high or high 6 low, pull the turn sign lever all the way towar you. Thenreleaseit. When the high beams are on, this blue light on the instrument panel also will be on. 94