GMC Terrain: Doors / Liftgate

Warning

Exhaust gases can enter the vehicle if it is driven with the liftgate or trunk/hatch open, or with any objects that pass through the seal between the body and the trunk/hatch or liftgate. Engine exhaust contains carbon monoxide (CO) which cannot be seen or smelled. It can cause unconsciousness and even death.

If the vehicle must be driven with the liftgate or trunk/hatch open:

  • Close all of the windows.
  • Fully open the air outlets on or under the instrument panel.
  • Adjust the climate control system to a setting that brings in only outside air and set the fan speed to the highest setting. See “Climate Control Systems” in the Index.
  • If the vehicle is equipped with a power liftgate, disable the power liftgate function.

See Engine Exhaust.

Caution

To avoid damage to the liftgate or liftgate glass, make sure the area above and behind the liftgate is clear before opening it.

    Doors

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    Manual Liftgate

    To unlock the liftgate, press on the power door lock switch or press on the Remote Keyless Entry (RKE) transmitter twice within five seconds. See Remote Keyless Entry (RKE) System Operation...

    Other information:

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    GMC Terrain 2018-2022 Owners Manual: 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 ..

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