GMC Terrain: Starting and Operating / Stop/Start System

If equipped, the Stop/Start system will shut off the engine to help conserve fuel. It has components designed for the increased number of starts.

Warning

The automatic engine Stop/Start feature causes the engine to shut off while the vehicle is still on. Do not exit the vehicle before shifting to P (Park). The vehicle may restart and move unexpectedly.

Always shift to P (Park), and then turn the ignition off before exiting the vehicle.

Auto Engine Stop/Start

When the brakes are applied and the vehicle is at a complete stop, the engine may turn off. When stopped, the tachometer displays AUTO STOP. See Tachometer. When the brake pedal is released or the accelerator pedal is pressed, the engine will restart.

To maintain vehicle performance, other conditions may cause the engine to automatically restart before the brake pedal is released.

Auto Stops may not occur and/or auto restarts may occur because:

  • The climate control settings require the engine to be running to cool or heat the vehicle interior.
  • The vehicle battery charge is low.
  • The vehicle battery has recently been disconnected.
  • Minimum vehicle speed has not been reached since the last Auto Stop
  • The accelerator pedal is pressed.
  • The engine or transmission is not at the required operating temperature.
  • The outside temperature is not in the required operating range.
  • The vehicle is in any gear other than D (Drive).
  • Tow/Haul Mode or other driver modes have been selected.
  • The vehicle is on a steep hill or grade.
  • The driver door has been opened or driver seat belt has been unbuckled.
  • The hood has been opened.
  • The Auto Stop has reached the maximum allowed time.

    Diesel Engine Starting Procedure

    The diesel engine starts differently than a gasoline engine. With the Keyless Access system, the RKE transmitter must be in the vehicle. Press ENGINE START/STOP and observe the wait-to-start light...

    Engine Heater

    Warning Do not plug in the engine block heater while the vehicle is parked in a garage or under a carport. Property damage or personal injury may result...

    Other information:

    GMC Terrain 2018-2026 Owners Manual: Low Fuel Warning Light


    For the base level cluster, this light comes on when the fuel tank is low on fuel. The light turns off when fuel is added. If it does not, have the vehicle serviced. For the uplevel cluster, this light is near the fuel gauge and comes on briefly when the ignition is turned on as a check to show it is working...

    GMC Terrain 2018-2026 Owners Manual: Vehicle Personalization


    The following are all possible vehicle personalization features. Depending on the vehicle, some may not be available. For System, Apps, and Personal features and functions, see “Settings” in the infotainment manual. To access the vehicle personalization menu: Touch the Settings icon on the Home Page of the infotainment display...

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