OnStar Services

See also:

Fuel Gauge
When the ignition is on, the fuel gauge shows about how much fuel is left in the tank. An arrow on the fuel gauge indicates the side of the vehicle the fuel door is on. The FUEL LEVEL LOW message ...

Heated Seats
Your vehicle may have heated front seats. The buttons used to control this feature are located on the front door armrests. The engine must be running for the heated seat feature to work. ...

Different Size Tires and Wheels
If wheels or tires are installed that are a different size than the original equipment wheels and tires, vehicle performance, including its braking, ride and handling characteristics, stability, and r ...