1998 GMC Suburban Owner's Manual - Page 119

0 0 LicensePlate Lamps Instrument Panel Lights Headlamps-On Reminder A buzzer will sound when your headlamps are turned on and your ignition is in OFF, LOCK or ACCESSORY. If you need to use your headlamps when the ignition switch is in OFF, LOCK or ACCESSORY, the buzzer can be turned off by turning the thumb wheel next to the parking/headlamp switch all the way down. Rotate the knob to the right again, to the master lighting symbol, to turn on all the lamps listed as well as the headlamps. Rotate the knob to the left, to OFF, to turn off your lamps. Rotate the thumb wheel next to the knobup to adjust instrument panel lights. Rotate the thumb wheel up to the first notch to return the radio display and gearshift indicator LED display to full intensity when the headlamps or parking lamps are on.To turn on the dome lamps (with the vehicle doors closed) rotate the thumb wheel up to the second notch position. Daytime Running Lamps Daytime Running Lamps (DRL) can make it easier for others to see the front of your vehicle during the day. DRL can be helpful in many different driving conditions, but they can be especially helpful in the short periods after dawn and before sunset. The DRL system will make your headlamps come on at a reduced brightness when: 0 0 0 You can switch your headlamps from high to low beam by pulling on the turn signal/high-beam lever. A circuit breaker protects your headlamps. If you have an electrical overload, your headlamps will flicker on and off. Have your headlamp wiring checked right away if this happens. the ignition is on, the headlamp switch is off and the parking brake is released. When the DRL are on, only your headlamps will be on. The taillamps, sidemarker and other lamps won't be on. Your instrument panel won't be lit up either. 2-41