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:
Recommended Fluids and Lubricants
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Finish Care
Application of aftermarket clearcoat sealant/wax materials is not recommended. If painted surfaces are damaged, see your dealer to have the damage assessed and repaired. Foreign materials such as calc ...
Belts
• Belts may need replacing if they squeak or show signs of cracking or splitting.
• Trained dealer technicians can inspect the belts and recommend replacement when necessary. ...