GMC Terrain: Driving and Operating / Engine Exhaust

Engine Exhaust

Warning

Engine exhaust contains carbon monoxide (CO), which cannot be seen or smelled. Exposure to CO can cause unconsciousness and even death.

Exhaust may enter the vehicle if:

  • The vehicle idles in areas with poor ventilation (parking garages, tunnels, deep snow that may block underbody airflow or tail pipes).
  • The exhaust smells or sounds strange or different. . The exhaust system leaks due to corrosion or damage.
  • The vehicle exhaust system has been modified, damaged, or improperly repaired.
  • There are holes or openings in the vehicle body from damage or aftermarket modifications that are not completely sealed.

If unusual fumes are detected or if it is suspected that exhaust is coming into the vehicle:

  • Drive it only with the windows completely down.
  • Have the vehicle repaired immediately.

Never park the vehicle with the engine running in an enclosed area such as a garage or a building that has no fresh air ventilation.

Running the Vehicle While Parked

It is better not to park with the engine running.

If the vehicle is left with the engine running, follow the proper steps to be sure the vehicle will not move. See Shifting Into Park and Engine Exhaust.

If parking on a hill and pulling a trailer, see Driving Characteristics and Towing Tips.

    Parking over Things That Burn. Extended Parking

    Parking over Things That Burn Warning Things that can burn could touch hot exhaust parts under the vehicle and ignite. Do not park over papers, leaves, dry grass, or other things that can burn...

    Diesel Particulate Filter

    The Diesel Particulate Filter (DPF) system filters soot particles out of the exhaust gases. The DPF is under the vehicle in the exhaust system. Depending on a number of factors monitored by the engine computer, the DPF will need to be cleaned of accumulated solids...

    Other information:

    GMC Terrain 2018-2024 Owners Manual: Charging System Light


    The charging system light comes on briefly when the ignition is turned on, but the engine is not running, as a check to show the light is working. The light turns off when the engine is started. If it does not, have the vehicle serviced by your dealer...

    GMC Terrain 2018-2024 Owners Manual: Doing Your Own Service Work


    Warning It can be dangerous to work on your vehicle if you do not have the proper knowledge, service manual, tools, or parts. Always follow owner’s manual procedures and consult the service manual for your vehicle before doing any service work...

      Categories

      Engine Overheating

      The vehicle has an engine coolant temperature gauge on the instrument cluster and overheat messages in the Driver Information Center (DIC) to warn of engine overheating. See Engine Coolant Temperature Gauge.

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