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:
Tire Pressure for High-Speed Operation
WARNING
Driving at high speeds, 160 km/h (100 mph) or higher, puts an additional strain
on tires.
Sustained high-speed driving causes excessive heat buildup and can cause sudden
tire failure.
Yo ...
Sunroof
If the vehicle has a power sunroof it
will only operate when the ignition is
in ON/RUN or ACC/ACCESSORY,
or when Retained Accessory
Power (RAP) is active. See Ignition
Positions (Key Access) ...
Maintenance
Passenger Compartment Air Filter
The filter removes dust, pollen, and other airborne irritants from outside
air that is pulled into the vehicle.
The filter should be replaced as part of routine ...