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:

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 there is ...

Loss of Control
Skidding There are three types of skids that correspond to the vehicle's three control systems: - Braking Skid — wheels are not rolling. - Steering or Cornering Skid — too much speed or s ...

Engine & Transmission
The CTS comes standard with a 3.0-liter V-6 engine, but our test car's optional 3.6-liter V-6 and six-speed automatic transmission are a special pair among drivetrains. The transmission's shifts a ...