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:
Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will
check the engine, transmission, antilock brakes, and major vehicle systems. It also
checks the tire pressures, if the v ...
Sedan and Wagon Uplevel Model
From the inside, for a front door pull
the door handle. Pulling the door
handle again unlatches the door.
For a rear door use the door lock
knob on the top of the door. ...
Collision Damage Repair (U.S. and Canada)
If the vehicle is involved in a collision and it is damaged, have the damage
repaired by a qualified technician using the proper equipment and quality replacement
parts. Poorly performed collision ...






