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:
Control panel buttons — color screen with navigation
system (if so equipped)
Control panel buttons — color screen with navigation
system (if so equipped)
1. (brightness control) button
2. Display screen
3. MAP button*
4. NAV button*
5. TRAF button*
6. SETUP bu ...
Hill start assist system (MT models)
Ensure that the Hill start assist system
operates properly under the following
circumstances:
1. Stop the vehicle on an uphill grade by
depressing the brake pedal and clutch
pedal, with the ...
Rain Sensing Intermittent Wipers — If Equipped
When ON is selected, the system will automatically
activate the windshield wipers if it senses moisture on
the windshield. To make your selection, press and release
the SELECT button until “ON ...
