Home › Forum › GMC › 2018 Terrain production This topic contains 0 replies, has 1 voice, and was last updated by Bill1938 6 months, 2 weeks ago. Author Posts November 9, 2017 at 6:09 am #179788 Bill1938Participant Is the 2018 Terrain in full production? The 2018 Terrain I ordered 7+ weeks has not been schedule due to no production. Can someone clarify this? Author Posts You must be logged in to reply to this topic.