1994 Cadillac DeVille Owner's Manual - Page 131

The low beam headlights will come on atreduced brightness in daylight when: 0 0 0 The ignition is on The headlight switch is off,and The transaxle is not in "P" (Park). A,t dusk, if the Twilight Sentinel feature is turned on, the exterior ligh.ts will come on automatically and the low beams will change to full brightness. At dawn, the exterior lightswill go out and the low beams will change to the reduced brightness of DRL (if the headlight switch isoff). Of course, you may stillturn on theheadlights any time you need to. To idle your vehicle withthe DRLoff, shift the transaxle into "P" (Park). The DRL will stay offuntil you shiftout of "P" (Park). Operation o Lights f Although your vehicle's lighting system (headlights, parking lights, fog lamps, side marker lights and taillights) meet all applicable federal lighting requirements, certain states andprovinces may apply their own lighting regulations that may require special attention before you operate these lights. For example, some jurisdictions may require thatyou operate your. lower beam lights with fog lamps all times,or that headlights be turned on at whenever you must use your windshield wipers. In addition, most jurisdictions prohibit driving solely with parking lights, especially at dawn or dusk. It is recommended that you check with your own state or provincial highwayauthority for applicable lighting regulations. 118