Automatic Headlamp System
When the exterior lamp control is set to AUTO and it is dark enough outside, the headlamps come on automatically.

There is a light sensor located on top of the instrument panel. Do not cover the sensor. Otherwise the headlamps will come on when they are not needed.
The system may also turn on the headlamps when driving through a parking garage or tunnel.
When it is bright enough outside, the headlamps will turn off or may change to daytime running lamps (DRL).
The automatic headlamp system turns off when the exterior lamp control is turned to
or the ignition is off.
See also:
English and Metric Unit Conversion
To change the display units between English and metric units, see Driver Information
Center (DIC) . ...
Automatic Dimming Rearview Mirror
The vehicle may have an automatic dimming inside
rearview mirror with OnStar® and/or a compass
display. Automatic dimming reduces the glare from
the headlamps of the vehicle behind you. The dim ...
Lower Anchors and Tethers for Children (LATCH)
The LATCH system holds a child restraint during
driving or in a crash. This system is designed
to make installation of a child restraint easier. The
LATCH system uses anchors in the vehicle and
at ...
