OnStar Services

See also:

Engine Overheating
The vehicle has several indicators to warn of engine overheating. There are two engine hot messages that may be displayed in the Driver Information Center (DIC). See Engine Cooling System Mes ...

Safety System Check
Now and then, check that the safety belt reminder light, safety belts, buckles, latch plates, retractors, and anchorages are all working properly. Look for any other loose or damaged safety belt sys ...

Tire Designations
Tire Size The following is an example of a typical passenger vehicle tire size. (A) Passenger (P–Metric) Tire: The United States version of a metric tire sizing system. The letter P as the ...