GMC Terrain: OnStar Mobile App - Connections - OnStar Services - OnStar - GMC Terrain Owner's ManualGMC Terrain: OnStar Mobile App

With an iPhone® or Android™-based mobile device, an OnStar mobile app can be downloaded. The vehicle can be remote started, if equipped, or the doors can be unlocked from anywhere there is cell phone service. It can also check the fuel level, tire pressure, and oil life. It can connect to an OnStar Advisor anytime. For OnStar mobile app compatibility or further information, see www.onstar.com.

    Place a Call Using a Stored Number
    1. Push . System responds: “OnStar ready.” 2. Say “Call <name tag>.” System responds: “OK, calling <name tag>.” Verify Minutes and Expiration Push and say “minutes” t ...

    Diagnostics
    OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the v ...

    See also:

    If the electronic key does not operate properly (vehicles with smart key system)
    If communication between the electronic key and the vehicle is interrupted or the electronic key cannot be used because the battery is depleted, the smart key system and wireless remote control ca ...

    Emergency Service
    ...

    Powered tailgate opening height
    The maximum opening height can be set as required. This is useful in parking areas with low ceiling heights or just for ease of use. 1. Open the tailgate to the position which you want to set as t ...