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:
Trailer Sway Control (TSC)
Non-hybrid vehicles with StabiliTrak have a Trailer Sway Control (TSC) feature.
If the vehicle is towing a trailer and the system detects that the trailer is swaying,
the vehicle brakes are applie ...
Lamps On Reminder
This light comes on whenever the parking lamps are on.
See Exterior Lamp Controls for more information. ...
Tire Rotation and Required
Services Every 12 000 km/7,500 mi
Rotate the tires, if recommended
for the vehicle, and perform the
following services. See Tire
Rotation.
- Check engine oil level and oil
life percentage. If needed,
change engine oil and f ...