HomeAll RepliesRe: Help with my screen on the Terrain Re: Help with my screen on the Terrain Sponsored April 1, 2012 at 5:06 am #39478 Z15Participant Have same touch screen as in your pic, Denali was built in 01/12. I beleive the started switching in Jan and Nav went on constraint on 01/19 and is still only available on customer orders. Sponsored Subscribe to GM Authority For around-the-clock GM news coverage We'll send you one email per day with the latest GM news. It's totally free. First Name Last Name Email Address Subscribe via Email Leave this field empty if you're human: Sponsored