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:
Starting the Gasoline Engine
Place the transmission in the proper gear by moving the shift lever to P
(Park) or N(Neutral). To restart the engine when the vehicle is already moving,
use N (Neutral).
Notice: Do not try to shi ...
OnStar Additional Information
Transferring Service
Push to request account transfer
eligibility information. The Advisor can assist in canceling or removing account
information. If OnStar receives information that vehicle ow ...
Grade Braking
The Grade Braking shift modes can be activated by pressing the button on the
end of the shift control lever. While in Range Selection Mode, Grade Braking is
deactivated allowing the driver to sele ...






