1998 Chevrolet Express Van Owner's Manual - Page 113

The DRL system will make your headlamps come at on a reduced brightness when: 0 0 Center High-MountedStoplamp 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 beon. Your instrument panel won't be lit up either. When it begins to get dark, your DRL indicator light is a reminder to turn y,ourheadlamp switch on. Theother lamps that come on with your headlamps will also come on. When you turn off the headlamp switch, the regular lamps will go off, and your headlamps will change to the reduced brightness of DRL. Your vehicle's center high-mounted stoplamp is located above the rear doors at the centerof the vehicle. If items are loaded on the roof of the vehicle, as ina luggage carrier, care should be taken not to block or damage the center high-mounted stoplamp unit. If you towa trailer that isequipped with provisions for a center high-mounted stoplamp, see your GM dealer for instructions on how to make it operate with your vehicle's electrical system.As with any electrical system modification, have the work performed a qualified by electrical service person. To idle your vehicle with engine on and the DRLoff, the set the parking brake. The DRL will stayoff until you release the parking brake. As with any vehicle, you should turn on the regular headlamp system when you need it. 2-42