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:
Audio System(s)
Determine which radio the vehicle has and read the
following pages to become familiar with its features.
WARNING:
Taking your eyes off the road for extended periods
could cause a crash resulting ...
Transferring Service
Push to request account transfer
eligibility information. The Advisor
can assist in canceling or removing
account information. If OnStar
receives information that vehicle
ownership has chan ...
Shocks and Struts
Shocks and struts help aid in control
for a smoother ride.
• Signs of wear may include
steering wheel vibration, bounce/sway while braking, longer
stopping distance, or uneven
tire wear.
â ...
