2010 Chevrolet Suburban 2500 Owner's Manual - Page 231

... Parking Lamps License Plate Lamps Instrument Panel Lights 2 (Headlamps): Turns on the headlamps together with the following lamps listed below... Parking Lamps Instrument Panel Lights Taillamps License Plate Lamps The exterior lamps control has four positions: O (Off): Turns off the automatic headlamps and daytime running lamps (DRL). Turning the headlamp control to the off position again turns the automatic headlamps or DRL back on. For vehicles first sold in Canada, the off position only works for vehicles that are shifted into the P (Park) position. AUTO (Automatic): Automatically turns on the headlamps at normal brightness, together with the following: ... Parking Lamps Instrument Panel Lights Taillamps License Plate Lamps When the headlamps are turned on while the vehicle is on, the headlamps will turn off automatically 10 minutes after the ignition is turned off. When the headlamps are turned on while the vehicle is off, the headlamps will stay on for 10 minutes before automatically turning off to prevent the battery from being drained. Turn the headlamp control to off and then back to the headlamp on position to make the headlamps stay on for an additional 10 minutes. Headlamps on Reminder A reminder chime will sound when the headlamps or parking lamps are manually turned on and the ignition is off and a door is open. To disable the chime, turn the light off. ; (Parking Lamps): Turns on the parking lamps together with the following: ... Instrument Panel Lights Taillamps License Plate Lamps 4-11