GMC Terrain: Driving and Operating / Fuel

Lane Keep Assist (LKA)

If equipped, LKA may help avoid crashes due to unintentional lane departures. It may assist by gently turning the steering wheel if the vehicle approaches a detected lane marking without using a turn signal in that direction...

Top Tier Fuel (Gasoline and Diesel)

Top Tier Fuel (Gasoline) GM recommends the use of TOP TIER Detergent Gasoline to keep the engine clean, reduce engine deposits, and maintain optimal vehicle performance...

Other information:

GMC Terrain 2018-2023 Owners Manual: Publication Ordering Information


Service Manuals Service manuals have the diagnosis and repair information on the engine, transmission, axle, suspension, brakes, electrical system, steering system, body, etc. Customer Literature Owner’s manuals are written specifically for owners and are intended to provide basic operational information about the vehicle...

GMC Terrain 2018-2023 Owners Manual: Wheel Replacement


Replace any wheel that is bent, cracked, or badly rusted or corroded. If wheel nuts keep coming loose, the wheel, wheel bolts, and wheel nuts should be replaced. If the wheel leaks air, replace it. Some aluminum wheels can be repaired. See your dealer if any of these conditions exist...

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