GMC Terrain: OnStar / OnStar Overview
Voice Command Button
Blue OnStar Button
Red Emergency Button
This vehicle may be equipped with a comprehensive, in-vehicle system that can connect to an OnStar Advisor for Emergency, Security, Navigation, Connections, and Diagnostics Services. OnStar services may require a paid service plan and data plan. OnStar requires the vehicle battery and electrical system, cellular service, and GPS satellite signals to be available and operating. OnStar acts as a link to existing emergency service providers. OnStar may collect information about you and your vehicle, including location information. See OnStar User Terms, Privacy Statement, and Software Terms for more details including system limitations at www.onstar.com (U.S.) or www.onstar.ca (Canada).
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.
Off: System is off. Press 
twice to speak with an OnStar
Advisor.
Press 
or call 1-888-4ONSTAR
(1-888-466-7827) to speak to an
Advisor.
Functionality of the Voice Command button may vary by vehicle and region.
Press 
to:
- Open the OnStar app on the infotainment display. See the infotainment manual for information on how to use the OnStar app.
Or
- 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.
- Obtain and customize the Wi-Fi hotspot name or SSID and password, if equipped.
Press 
to connect to an
Advisor to:
- Verify account information or update contact information.
- Get driving directions.
- Receive a Diagnostic check of the vehicle's key operating systems.
- Receive Roadside Assistance.
- Manage Wi-Fi Settings, if equipped.
Press 
to get a priority
connection
to an OnStar Advisor available
24/7 to:
- Get help for an emergency.
- Be a Good Samaritan or respond to an AMBER Alert.
- Get assistance in severe weather or other crisis situations and find evacuation routes.
OnStar
..
Other information:
GMC Terrain 2018-2024 Owners Manual: Brake System Warning Light
The vehicle brake system consists of two hydraulic circuits. If one circuit is not working, the remaining circuit can still work to stop the vehicle. For normal braking performance, both circuits need to be working This light should come on briefly when the engine is started. If it does not come on then, have it fixed so it will be ready to warn you if there is a problem. When the ignit..
GMC Terrain 2018-2024 Owners Manual: Tire Chains
Warning Do not use tire chains. There is not enough clearance. Tire chains used on a vehicle without the proper amount of clearance can cause damage to the brakes, suspension, or other vehicle parts. The area damaged by the tire chains could cause loss of control and a crash. Use another type of traction device only if its manufacturer recommends it for the vehicle's tire size combinati..
- Manuals Home
- 2nd Generation Terrain Owners Manual
- 2nd Generation Terrain Service Manual
- Jump Starting
- (TCS) / (ESC). Turning the Systems Off and On (Uplevel Cluster)
- Recommended Fuel (LYX - 1.5L L4 Turbo Engine, LTG - 2.0L L4 Turbo Engine)
- New on site
- Most important about car
Categories
Vehicle Messages
Messages displayed on the DIC indicate the status of the vehicle or some action that may be needed to correct a condition. Multiple messages may appear one after another.
The messages that do not require immediate action can be acknowledged and cleared by pressing V. The messages that require immediate action cannot be cleared until that action is performed.
