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. ...

Wipe Parking
If the ignition is turned to LOCK/ OFF while the wipers are on 1, 2, or , they will immediately stop. If the windshield wiper lever is then moved to before the driver door is opened, or within 1 ...

Tire Inspection and Rotation
Tires should be rotated every 5,000 to 8,000 miles (8 000 to 13 000 km). Any time you notice unusual wear, rotate your tires as soon as possible and check wheel alignment. Also check for damaged ...