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:

    Compass Zone
    The zone is set to zone eight. If you do not live in zone eight or drive out of the area, the variance needs to be changed to the appropriate zone. To adjust for compass variance, use the fol ...

    Returning the Seat to the Sitting Position
    To return the seat to the sitting position from the tumbled position: 1. Pull the seat down until it latches to the floor. The seatback cannot be raised if the seat is not latched to the floor. ...

    Getting Started on Your Route
    Once a destination has been entered, there are several functions that can be performed. Press DEST to access the Route screen. Turn List Press to view the list of turn maneuvers for the entire ...