Model Y is like 3 except some of them do not have a manual release for rear-passengers, and those that do involve another step to pull up a mat from the bottom of the door-pocket:
I was t-boned in a new model s (with yoke) and there wasn't any release like the manual said. Dunno if the carpet was just covering it and someone skipped that step but even the folks at the shop couldn't figure how to open them. Same goes with releasing the rear seats forward, if you don't have power they wont go down and of course the emergency escape latch in the trunk is basically impossible to get to unless you're already in the trunk area.
