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:

Satellite Radio
XM is a satellite radio service that is based in the 48 contiguous United States and 10 Canadian provinces. XM satellite radio has a wide variety of programming and commercial-free music, coas ...

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 ...

Exterior
Sport utility vehicle-like styling features of the Terraza include its closer-to-vertical squared-off front fascia and its tall hood. Prominent C-pillars and 17-inch wheels are also supposed to br ...