Did it with the 2012 Liberty Sport KK I just purchased this month.
1. Remove the bolts in the brackets that attach the rear seat to the floor under the seat
2. Lift the seat up and remove the center seatbelt bolt
3. Remove the bolts on the passenger and drivers side seat bottom.. It’s next to the seatbelts on each side
4. Remove the plastic with carpet cover that bends behind the seats in the trunk area.. It has the plastic panel pieces holding it in.
5. Fold both seats down and remove the final bolts behind the seat if any.
You’re done.I removed the entire interior this weekend.. Front Seats, Rear Seats, Center Console, Rear Storage area.. And shampooed the Heck outa the seats and interior with the carpet cleaner from Publix.