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. ...

Once a Month
• Tire inflation check. See Inflation - Tire Pressure. • Tire wear inspection. See Tire Inspection and Rotation. ...

Lamps On Reminder
The lamps on reminder light comes on when the lights are in use. ...