1999 Chevrolet S10 Pickup Owner's Manual - Page 100

yellowblue To idle your vehicle with the automatic headlamp system off, set the parking brake while the ignition is off. Then start your vehicle. The automatic headlamp system will stay off until you release the parking brake. As with any vehicle, you should turn on the regular headlamp system when you need it. The DRL system will make your headlamps come on at reduced brightness when: Lamps On Reminder A reminder chime will sound when your headlamps or parking lamps are manually turned on and your ignition is in OFF, LOCK or ACCESSORY. To turn the chime off, turn the knob all the way to the left or turn the instrument panel dimmer down to the fully dimmed position. In the automatic mode, the headlamps turn off once the ignition key is in OFF. D D D D D the ignition is on, the headlamp switch is in automatic headlamp mode, the light sensor detects daytime light, an automatic transmission is not in PARK (P), 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. The instrument panel won't be lit up either. When it begins to get dark, the headlamps will automatically switch from DRL to the regular headlamps. The DRL system on some vehicles may turn off temporarily while the turn signals are activated. To idle an automatic transmission vehicle with the DRL off, put the transmission in PARK (P) or set the parking brake. To idle a manual transmission vehicle with the DRL off, set the parking brake. The DRL will stay off until you shift out of PARK (P) or release the parking brake. As with any vehicle, you should turn on the regular headlamp system when you need it. Daytime Running Lamps (If Equipped) 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. 2-42