2005 Chevrolet Avalanche Owner's Manual - Page 171
2005 Chevrolet Avalanche Manual
Page 171 highlights
Headlamps on Reminder If a door is open, a reminder chime will sound when your headlamps or parking lamps are manually turned on and your key is out of the ignition. To turn off the chime, turn the headlamp switch to off or AUTO and then back on. In the AUTO mode, the headlamps turn off once the ignition is in LOCK or may remain on until the headlamp delay ends (if enabled in the DIC). 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. When it begins to get dark, the automatic headlamp system will switch from DRL to the headlamps. As with any vehicle, you should turn on the regular headlamp system when you need it. Automatic Headlamp System When it is dark enough outside and the headlamp switch is in AUTO, your automatic headlamp system will turn on your headlamps at the normal brightness along with other lamps such as the taillamps, sidemarker, parking lamps, roof marker 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 headlamps will remain off once the vehicle is started for as long as you are parked. If you release the parking brake, the lights will turn on. If the parking brake is not released before you begin to drive, the exterior lamps will turn on above 2 mph (3.2 km/h). 3-15 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: The ignition is on, the exterior lamps control is in AUTO, the transmission is not in PARK (P), and the light sensor determines it is daytime.