GMC Terrain: Front Seats / Power Reclining Seatbacks

Manual Reclining Seatbacks

Warning If either seatback is not locked, it could move forward in a sudden stop or crash. That could cause injury to the person sitting there. Always push and pull on the seatbacks to be sure they are locked...

Memory Seats

If equipped, memory seats allow two drivers to save and recall their unique seat positions for driving the vehicle, and a shared exit position for getting out of the vehicle...

Other information:

GMC Terrain 2018-2023 Owners Manual: Diesel Exhaust Fluid

Diesel Exhaust Fluid (DEF) is used with diesel engines to reduce the amount of regulated emissions produced. The DEF system must be maintained for the vehicle to run properly. It is normal to hear the DEF system purge fluid back into the tank after the vehicle is shut off...

GMC Terrain 2018-2023 Owners Manual: Front Turn Signal Lamps

To replace one of these bulbs: Open the hood. See Hood. Remove the bulb access cap from the top of the headlamp assembly by turning it counterclockwise. Remove the bulb from the bulb socket by pinching the tabs on either side of the bulb and pull straight out...