GM Service Manual Online
For 1990-2009 cars only
Table 1: Exterior Lamp Positions for Daytime
Table 2: Exterior Lamp Positions for Nighttime

Object Number: 918770  Size: B2

The lever on the left side of the steering column operates the exterior lamps.

The exterior lamp switch has the following four positions:

& (Headlamps): This position turns on the headlamps, parking lamps, and taillamps.

(Parking Lamps): This position turns on the parking lamps and taillamps only.

AUTO (Automatic Headlamp System): This position automatically turns on the Daytime Running Lamps during daytime, and the headlamps, parking lamps, and taillamps at night.

(Off/On): This position is the momentary Off/On switch for the Automatic Headlamp System.

When operating in AUTO, a momentary turn of the switch to off/on turns off the Automatic Headlamp System. Turn the switch to off/on again to turn the Automatic Headlamp System back on. The Automatic Headlamp System is always turned on at the beginning of an ignition cycle.

The following charts show the condition of the vehicle's exterior lamps when the transmission is not in PARK (P) and the switch is moved to each position:

Exterior Lamp Positions for Daytime

Lamps

AUTO

&

Headlamp

OFF

DRL Mode

OFF

ON

Parking Lamp

OFF

OFF

ON

ON

Taillamp

OFF

OFF

ON

ON

Exterior Lamp Positions for Nighttime

Lamps

AUTO

&

Headlamp

OFF

ON

OFF

ON

Parking Lamp

OFF

ON

ON

ON

Taillamp

OFF

ON

ON

ON