See also:

Tire Sidewall Labeling
Useful information about a tire is molded into its sidewall. The examples below show a typical passenger vehicle tire and a compact spare tire sidewall. Passenger (P-Metric) Tire Example (A) ...

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the v ...

Engine Overheating
The vehicle has several indicators to warn of engine overheating. You will find a warning light about a hot engine as well as an engine coolant temperature gage on the instrument panel cluster. ...