GMC Terrain: 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.
Potential Issues
Some OnStar services are disabled after five days. OnStar cannot perform Remote Door Unlock or Stolen Vehicle Assistance after the vehicle has been off continuously for five days. After five days, ...Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception. Cellular reception is required for OnStar to send remote signals to the vehicle. ...See also:
Cargo light
Cargo light
When the switch is in the ON position 1 , the
light illuminates while the lift gate is opened.
When the lift gate is closed, the light will turn off.
When the switch is in the OFF p ...
Call Termination
To end a call in progress, momentarily press the
button. Only the active call(s) will be terminated and if
there is a call on hold, it will become the new active call.
If the active call is ter ...
Event Data Recorders (EDR)
GUID-D562961D-9AFE-4754-8C59-8C01CE2FEDDB
This vehicle is equipped with an Event Data
Recorder (EDR). The main purpose of an EDR is
to record, in certain crash or near crash-like
situations, s ...