1994 GMC Safari Owner's Manual - Page 91

A green arrow on the instrument panel will flash in the direction of the turn or lane change. L To signal a lane change, just raise or lower the lever until the green arrow starts to flash. Hold it thereuntil you complete your lane change. The lever will return by itself when you release it. As you signal a turn or a lane change, if the arrows don't flash but just stay on, a signal bulb may be burned out and other drivers won't see your turn signal. 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 turn, check the fuse (see "Fuses" a in the Index) and for burned-out bulbs. If you have a trailer towing option with added wiring for the trailer lights, a different turn signalflasher is used. With this flasher installed, the signal indicator will flash even if a turn signal bulb is burned out. Check the front and rear turn signal lights regularly to make sure they are working. Operation of Lights Although your vehicle's lighting system(headlights, parking lights, fog lamps, side marker lights and taillights) meets all applicable federal lighting requirements, certain states and provinces may applytheir own lighting regulations that may require special attention before youoperate these lights. For example, some jurisdictions may require that you operate your fog lamps only when your lower beam headlights are also on, or that headlights be turned on whenever you must use your windshield wipers. In addition, most jurisdictions prohibit driving solely with parkinglights, especially at dawn or dusk. It is recommended that you check with your ownstate or provincial highway authority for applicable lighting regulations. 2-31