GMC Terrain: Rear Seats / Reclining the Seatback

Rear Seat Reminder

If equipped, the message REAR SEAT REMINDER LOOK IN REAR SEAT displays under certain conditions indicating there may be an item or passenger in the rear seat...

Folding the Seatback

Either side of the seatback can be folded for more cargo space. Fold a seatback only when the vehicle is not moving. Caution Folding a rear seat with the seat belts still fastened may cause damage to the seat or the seat belts...

Other information:

GMC Terrain 2018-2026 Owners Manual: Filling the DEF Tank

Caution Use only DEF that is GM approved, or fluid containing the API certified or ISO 22241 label. The use of other fluids could damage the system, requiring costly repairs that will not be covered by the vehicle warranty. Caution Do not mix fuel with DEF, and do not put DEF in the fuel tank...

GMC Terrain 2018-2026 Owners Manual: Folding Mirrors and Heated Mirrors

Folding Mirrors Manual Folding Mirrors The mirrors can be folded inward toward the vehicle to prevent damage when going through an automatic car wash. Push the mirror outward to return it to the original position. Memory Mirrors The vehicle may have memory mirrors...