See also:

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. ...

Engine Overheating
You will find a coolant temperature gage on your vehicle’s instrument panel. If your vehicle has a Driver Information Center (DIC), the display will show an Engine Coolant Hot/Engine Overheated ...

First Engine Oil Change After Every 80 000 km/50,000 Miles
• Engine air cleaner filter replacement. See Engine Air Cleaner/Filter. • Automatic transmission fluid change (severe service) for vehicles mainly driven in heavy city traffic in hot weathe ...