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:
Charging System Light
The charging system light comes on briefly when the ignition is turned on,
but the engine is not running, as a check to show the light is working.
The light turns off when the engine is starte ...
Adding Equipment to the Airbag-Equipped Vehicle
Adding accessories that change the vehicle's frame, bumper system, height,
front end, or side sheet metal may keep the airbag system from working
properly.
The operation of the airbag system can ...
Tire Sealant
Read and follow the safe handling instructions on the label adhered to the sealant
canister.
Check the tire sealant expiration date on the sealant canister. The sealant canister
should be replace ...