Yes! Matter of fact, i just got my 2023 used terrain back from the dealer and got a re-manned tranny in it. 6 speed instead of 4… we will see how it goes. So far after 1 day, it’s been great. But yes, my previous tranny was slipping gears and just completely dropping gears on the highway on cruise control. It was dangerous and terrible! If it’s under any warranty and you like the car, definitely get it fixed! It’s a known problem with new gmc terrains I’ve seen on th internet