Navigation

OnStar navigation requires the Directions and Connections service plan.

Push have them sent to the vehicle to receive directions or have them sent to the vehicle navigation screen. Destinations can also be forwarded to the vehicle from Google Maps™ or MapQuest.com. The OnStar mapping database is continuously updated. Visit www.onstar.com for coverage maps.

See also:

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 first ...

Hill and Mountain Roads
Driving on steep hills or mountains is different from driving in flat or rolling terrain. If you drive regularly in steep country, or if you are planning to visit there, here are some tips that ...

Tire Pressure Light
For vehicles with the Tire Pressure Monitor System (TPMS), this light comes on briefly when the engine is started. It provides information about tire pressures and the TPMS. ...