Used 2020 GMC Terrain for sale. Price: $13,995 39 16th Street, Brooklyn, NY 11215 More Brooklyn, NY GMC Terrain's 2023 $28,955 14,675 Miles 2023 $29,300 9,705 Miles 2021 $34,630 11 Miles 2021 $33,100 4 Miles 2020 $17,900 6,442 Miles 2021 $33,875 109 Miles