OnStar

See also:

If a Tire Goes Flat
It is unusual for a tire to blow out while driving, especially if the tires are maintained properly. See Tires. If air goes out of a tire, it is much more likely to leak out slowly. But if the ...

Tire Rotation and Required Services Every 12 000 km/7,500 mi
Rotate the tires, if recommended for the vehicle, and perform the following services. See Tire Rotation. - Check engine oil level and oil life percentage. If needed, change engine oil and f ...

Odometer
The vehicle's odometer works together with the Driver Information Center (DIC). The Trip odometer can be set. See “Trip Odometer” under Driver Information Center (DIC)   for more inf ...