Multi-Band Antenna
The antenna located on the roof of the vehicle is used for the OnStar, XM Satellite Radio Service System, and GPS (Global Positioning System), if the vehicle has these features. Keep the antenna clear of obstructions for clear reception.
If the vehicle has a sunroof and it is open, the performance of OnStar, XM, and GPS can be affected.
See also:
Lamp Messages
SERVICE LEFT HEADLAMP ASSEMBLY
On some models, this message will be displayed when the left headlamp is out
and needs to be serviced. See “LED Lighting” in LED Lighting for more
infor ...
Hitches
Use the correct hitch equipment.
See your dealer or a hitch dealer for
assistance.
- The rear bumper on the vehicle
is not intended for hitches.
Do not attach rental hitches or
other bumper-t ...
Maintenance Schedule
Owner Checks and Services
At Each Fuel Stop
. Check the engine oil level. See Engine Oil .
Once a Month
. Check the tire inflation pressures. See Tire Pressure .
. Inspect the tires f ...






