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.
See also:
Automatic Dimming Mirror
If the vehicle has the automatic dimming mirror, the driver outside mirror
automatically adjusts for the glare of headlamps behind you. ...
Selective Ride Control
The vehicle may have a ride control system called Selective Ride Control.
The setting can be changed at any time. Based on road conditions, steering
wheel angle, and the vehicle speed, the system au ...
Compass Calibration Procedure
1. Before calibrating the compass,
check that the compass is set
to the correct variance zone.
See “Compass Variance (Zone)
Procedure” earlier in this
section.
Do not operate any switches
...