Global Positioning System (GPS)

• Obstruction of the GPS can occur in a large city with tall buildings; in parking garages; around airports; in tunnels, underpasses, or parking garages; or in an area with very dense trees. If GPS signals are not available, the OnStar system should still operate to call OnStar. However, OnStar could have difficulty identifying the exact location.

• In emergency situations, OnStar can use the last stored GPS location to send to emergency responders.

• A temporary loss of GPS can cause loss of the ability to send a Turn-by-Turn Navigation route.

The Advisor may give a verbal route or may ask for a call back after the vehicle is driven into an open area.

    See also:

    Cruise Control
    Cruise Control : Press to turn cruise control on and off. The indicator comes on when cruise control is on. + RES: Press briefly to make the vehicle resume to a previously set speed, or press and ...

    Shifting Out of Four-Wheel Drive Low
    To shift from Four-Wheel Drive Low to Four-Wheel Drive High, AUTO or Two-Wheel Drive High, the vehicle must be stopped or moving less than 5 km/h (3 mph) with the transmission in N (Neutral) and the i ...

    Speedometer
    The vehicle's speed can be selected to display on the Driver Information Center (DIC) and the speedometer in either kilometers per hour (km/h) or miles per hour (mph). Telltales on the speedom ...