GMC Terrain: Potential Issues - Services for People with Disabilities - OnStar Additional Information - OnStar - GMC Terrain Owner's ManualGMC Terrain: 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, OnStar can contact Roadside Assistance and a locksmith to help gain access to the vehicle.

    Languages
    The vehicle can be programmed to respond in French or Spanish. Push Q and ask an Advisor. Advisors can speak French or Spanish. ...

    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. ...

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    Random playback
    Pressing (RDM) changes modes in the following order: Folder random → Disc random → Off ...

    Recommended cold tire inflation pressure
    For recommended cold tire inflation pressure for your vehicle’s tires, refer to “Tires”. ...

    If You Can Not Shift Automatic Transmission Gearshift Lever Out of “P” (PARK)
    Vehicles with an automatic transmission have an electrically operated park-lock feature. If the vehicle’s battery is discharged, or there is some other electrical failure, the automatic transm ...