Automatic Headlamp System
When it is dark enough outside and the exterior lamps control is in the automatic position, the headlamps come on automatically. See Exterior Lamp Controls .

The vehicle has a light sensor located on top of the instrument panel. Make sure it is not covered, or the headlamps will be on when they are not needed.
The system may also turn on the headlamps when driving through a parking garage or tunnel.
See also:
Entering the Personalization Menus
1. Press CONFIG to access the Configuration Settings menu.
2. Turn the TUNE/MENU knob to highlight Vehicle Settings. Press the CONFIG button
until Vehicle is highlighted on vehicles with a navigati ...
OnStar Personal Identification
Number (PIN)
A PIN is needed to access some of
the OnStar services, like Remote
Door Unlock and Stolen Vehicle
Assistance. You will be prompted to
change the PIN the first time when
speaking with an Advi ...
Driving for Better Fuel Economy
Driving habits can affect fuel mileage. Here are some driving tips to get the best fuel economy possible.
► Avoid fast starts and accelerate smoothly.
► Brake gradually and avoid abrupt ...
