Cadillac GMC Yukon Denali 2005 Owner's Manual page 22

Removing the 50/50 Split Bench Seats
To remove the 50/50 split bench seat, do the following:
1. Open the liftgate.
1-16
2. Fold the seatback
forward onto the seat
cushion by using
the lever labeled 1.
The seat cannot
be removed unless the
seatback is folded.
4. Squeeze the release handle while pulling the
seat out.
5. While holding the rear of the seat up, roll the seat
out of the vehicle.
3. To unlatch the rear of
the seat from the floor,
pull up on the release
lever labeled 2 at the
rear of the seat, and lift
the rear of the seat up
from the floor.