GMC Terrain: Fuel - Fuel - Driving and Operating - GMC Terrain Owner's ManualGMC Terrain: Fuel

Use of the recommended fuel is an important part of the proper maintenance of this vehicle. To help keep the engine clean and maintain optimum vehicle performance, we recommend the use of gasoline advertised as TOP TIER Detergent Gasoline.

Look for the TOP TIER label on the fuel pump to ensure gasoline meets enhanced detergency standards developed by auto companies. A list of marketers providing TOP TIER Detergent Gasoline can be found at www.toptiergas.com.

Vehicles that have a FlexFuel badge and a yellow fuel cap can use either unleaded

Vehicles that have a FlexFuel badge and a yellow fuel cap can use either unleaded gasoline or ethanol fuel containing up to 85% ethanol (E85). See Fuel E85 (85% Ethanol) on page 9‑53. For all other vehicles, use only the unleaded gasoline described under Recommended Fuel on page 9‑51.

    Fuel
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    Recommended Fuel
    Use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less than 87, an audible knocking noise, commonly referred to as spark knock, might be heard when ...

    See also:

    Towing Without The Ignition Key Fob
    Special care must be taken when the vehicle is towed with the ignition in the LOCK/OFF position. The only approved method of towing without the ignition key is with a flatbed truck. Proper towin ...

    Controls
    Outside air circulation: Push the air recirculation button to turn off the indicator light on the button. The air flow is drawn from outside the vehicle. Air recirculation: Push the air recircu ...

    If the electronic key does not operate properly (vehicles with smart key system)
    If communication between the electronic key and the vehicle is interrupted or the electronic key cannot be used because the battery is depleted, the smart key system and wireless remote control ca ...