GMC Terrain: Seats and Restraints / Child Restraints

Replacing Airbag System Parts after a Crash

Warning A crash can damage the airbag systems in the vehicle. A damaged airbag system may not properly protect you and your passenger(s) in a crash, resulting in serious injury or even death...

Older Children

Older children who have outgrown booster seats should wear the vehicle’s seat belts. The manufacturer instructions that come with the booster seat state the weight and height limitations for that booster...

Other information:

GMC Terrain 2018-2026 Owners Manual: Engine Power Messages and Vehicle Speed Messages

Engine Power Messages ENGINE POWER IS REDUCED This message displays when the vehicle's propulsion power is reduced. Reduced propulsion power can affect the vehicle's ability to accelerate. If this message is on, but there is no observed reduction in performance, proceed to your destination...

GMC Terrain 2018-2026 Owners Manual: Increasing Speed While Using Cruise Control

If the cruise control system is already activated: Press and hold +RES on the steering wheel until the vehicle accelerates to the desired speed, then release it. To increase the speed in small increments, briefly press +RES. For each press, the vehicle goes about 1 km/h (1 mph) faster...