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:

    Control Buttons
    The knobs and buttons used to control the CD/DVD player are: CD/AUX (CD/Auxiliary): Press to switch between CD/DVD, auxiliary input, and USB devices. or : Press to select tracks. TUNE/TON ...

    Dual Automatic Climate Control System
    A. Fan Control B. Power C. AUTO (Automatic Operation) D. ZONE E. Defrost F. Air Delivery Mode Control G. Driver and Passenger Temperature Controls H. Driver and Passenger Heated and Ventila ...

    Overheated Engine Protection Operating Mode
    If an overheated engine condition exists and the ENGINE POWER IS REDUCED message is displayed, an overheat protection mode which alternates firing groups of cylinders helps prevent engine damage. ...