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 2018-2025 Owners Manual: Exterior Lamp Controls

The exterior lamp control is on the instrument panel to the left of the steering column. There are four positions. : Turns the exterior lamps off and deactivates the AUTO mode. Turn to again to reactivate the AUTO mode. In Canada, the headlamps will automatically reactivate when the+ vehicle is shifted out of P (Park)...

GMC Terrain 2018-2025 Owners Manual: Power Driver Seat

To adjust a power driver seat, if equipped: Move the seat forward or rearward by sliding the control forward or rearward. Raise or lower the front part of the seat cushion by moving the front of the control up or down. Raise or lower the entire seat by moving the rear of the control up or down...