2006 Chevrolet Silverado 1500 Pickup Owner's Manual - Page 188

Headlamps on Reminder A reminder chime will sound when your headlamps or parking lamps are manually turned on and your ignition is off, in LOCK, ACCESSORY, or a door is open. To disable the chime, turn the light off then back on. When it begins to get dark, the automatic headlamp system will switch from DRL to the headlamps. When you turn the headlamp switch off, the headlamps will go off, and your DRL lamps will illuminate, provided it is not dark outside. Shifting the transmission into PARK (P) will allow you to idle the vehicle with the DRL off. The DRL will stay off until you shift the transmission out of PARK (P). This procedure applies only to vehicles first sold in the United States. Daytime Running Lamps (DRL) 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. Fully functional daytime running lamps are required on all vehicles first sold in Canada. The DRL system will come on when the following conditions are met: Automatic Headlamp System When it is dark enough outside, your automatic headlamp system will turn on your headlamps at the normal brightness along with other lamps such as the taillamps, sidemarker, parking lamps and the instrument panel lights. The radio lights will also be dim. To turn off the automatic headlamp system, turn the exterior lamps switch to the off position and then release. Turning off the automatic headlamp system with the headlamp switch is not available for vehicles first sold in Canada. For vehicles first sold in Canada, you can turn off the automatic headlamp system when parked at night by applying the parking brake before starting your vehicle. The ignition is on The exterior lamps control is in AUTO The automatic transmission is not in PARK (P) The light sensor determines it is daytime When the DRL are on, only your DRL lamps will be on. The taillamps, sidemarker and other lamps won't be on. The instrument panel won't be lit up either. 3-14