Keys, Doors and Windows

Liftgate

~1min read
  • Close all windows.
  • Fully open the ventilation outlets on or under the instrument panel.
  • Set the climate control system to a setting that draws in outside air only 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, turn off the power liftgate feature.

See Engine Exhaust.

Test yourself

A quick GMC Terrain quiz: every answer comes with an explanation and a link to the manual page.