GMC Terrain: OnStar Services / Emergency
Emergency Services require an active safety and security plan. With Automatic Crash Response, built-in sensors can automatically alert a specially trained OnStar Advisor who is immediately connected in to the vehicle to help.
Press 
for a priority connection
to
an OnStar Advisor who can contact
emergency service providers, direct
them to your exact location, and
relay important information.
With OnStar Crisis Assist, specially trained Advisors are available 24 hours a day, 7 days a week, to provide a central point of contact, assistance, and information during a crisis.
With Roadside Assistance, Advisors can locate a nearby service provider to help with a flat tire, a battery jump, or an empty gas tank.
Security
If equipped, OnStar provides these
services:
With Stolen Vehicle Assistance,
OnStar Advisors can use GPS to
pinpoint the vehicle and help
authorities quickly recover it...
Other information:
GMC Terrain 2018-2026 Owners Manual: Engine Exhaust
Engine Exhaust Warning Engine exhaust contains carbon monoxide (CO), which cannot be seen or smelled. Exposure to CO can cause unconsciousness and even death. Exhaust may enter the vehicle if: The vehicle idles in areas with poor ventilation (parking garages, tunnels, deep snow that may block underbody airflow or tail pipes)...
GMC Terrain 2018-2026 Owners Manual: Heated Steering Wheel and Horn
Heated Steering Wheel : If equipped, press to turn it on or off. A light next to the button displays when the feature is turned on. The steering wheel takes about three minutes to start heating. Horn Press on the steering wheel pad to sound the horn...
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