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:

    Rear Vision Camera (RVC)
    If available, the RVC displays a view of the area behind the vehicle on the navigation screen when the vehicle is shifted into R (Reverse). Once shifted out of R (Reverse), the navigation screen w ...

    Rear Seat Entertainment (RSE) System (Overhead)
    The vehicle may have an Overhead DVD Rear Seat Entertainment (RSE) system. The RSE system works with the vehicle's audio system. The DVD player is part of the front radio. The RSE system inclu ...

    Time Shifting — Pause and Rewind Live FM and AM
    The Radio with DVD Audio, HDD, and USB has the ability to rewind 60 minutes of FM and AM content. While listening to the radio, the content from the current station is always being buffered t ...