See also:

Additional Required Services
The following services should be performed at the first maintenance service (I or II) after the indicated miles (kilometers) shown for each item. Additional Required Services Additional Require ...

Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception. Cellular reception is required for OnStar to send remote signals to the vehicle. ...

Lane Departure Warning (LDW)
For vehicles with LDW, it is intended to help avoid lane change collisions. It provides a warning if the vehicle is crossing a lane without using a turn signal. LDW uses a camera to detect the l ...