GMC Terrain: OnStar Overview

If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services.
The OnStar system status light is next to the OnStar buttons. If the status light is:
○ Solid Green: System is ready.
○ Flashing Green: On a call.
○ Red: Indicates a problem.
Push
or call 1&-888&-4&-ONSTAR (1&-888&-466&-7827)
to speak to an Advisor.
Push
to:
○ Make a call, end a call, or answer an incoming call.
○ Give OnStar Hands-Free Calling voice commands.
○ Give OnStar Turn-by-Turn Navigation voice commands. Requires the available Directions
and Connections service plan.
Push
to connect to a live Advisor
to:
○ Verify account information or update contact information. . Get driving directions. Requires the available Directions and Connections service plan. . Receive On-Demand Diagnostics for a check on the vehicle’s key operating systems. . Receive Roadside Assistance.
Push
to get a priority connection
to an Emergency Advisor available 24/7 to:
○ Get help for an emergency.
○ Be a Good Samaritan or respond to an AMBER Alert.
○ Get crisis assistance and evacuation routes.
See also:
If you have a flat tire
The spare tire, jack, jack handle, wheel lug nut wrench are stored in the luggage
compartment. Remove the luggage under tray out of the way to reach this equipment.
Removing the spare tire Turn the tire hold-down wing bolt counterclockwise. St ...
If the Engine Overheats
The engine could overheat temporarily under severe driving conditions. If the
engine coolant temperature gauge indicates overheating during driving: 1) Turn off
the air conditioner, if equipped. 2) Take the vehicle to a safe place and park.
3) ...

Vehicle Data