GMC Terrain: Connected Services / Diagnostics

By monitoring and reporting on the vehicle's key systems, OnStar Advanced Diagnostics, if equipped, provides a way to keep up on maintenance. Capabilities vary by model. See www.onstar.com for details and system limitations. Features are subject to change. For updates on feature capabilities, see my.gmc.com. Message and data rates may apply.

    Connections

    The following services help with staying connected. For coverage maps, see www.onstar.com (U.S.) or www.onstar.ca (Canada). Ensuring Security Change the default passwords for the Wi-Fi hotspot and myGMC mobile application...

    Other information:

    GMC Terrain 2018-2026 Owners Manual: Speedometer, Odometer, Trip Odometer and Tachometer


    Speedometer The speedometer shows the vehicle's speed in either kilometers per hour (km/h) or miles per hour (mph). Odometer The odometer shows how far the vehicle has been driven, in either kilometers or miles. Trip Odometer The trip odometer shows how far the vehicle has been driven since the trip odometer was last reset...

    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...

      Categories

      Tire Pressure Light

      GMC Terrain. Tire Pressure Light

      For vehicles with the Tire Pressure Monitor System (TPMS), this light comes on briefly when the engine is started. It provides information about tire pressures and the TPMS.

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