Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if the battery is discharged or disconnected.
See also:
Heated Seats
Your vehicle may have heated front seats. To operate
the heated seats, the ignition must be on.
Driver’s Side Buttons shown
The buttons are located on
the front doors.
(Heated Seat Cushion ...
When It Is Time for New Tires
Factors such as maintenance, temperatures, driving speeds, vehicle loading, and road conditions affect the wear rate of the tires.
Treadwear indicators are one way to tell when it is time for new t ...
Tire Terminology and Definitions
Air Pressure: The amount of air inside the
tire pressing outward on each square inch of the
tire. Air pressure is expressed in pounds per
square inch (psi) or kilopascal (kPa).
Accessory Weight ...