GMC 2016 Yukon XL Denali Owner's Manual page 65

64 Seats and Restraints
3. Fully lower the head restraints.
See Head Restraints 0 52. Put
the second row seatback in the
upright position. See Second
Row Seats 0 59.
4. Disconnect the rear safety belt
mini-latch, using a key in the
slot on the mini-buckle, and let
the belt retract into the
headliner. Stow the mini-latch
in the holder in the headliner.
5. Press and hold the switch (2)
on the side trim of the cargo
area to fold the seatback.
The left switch folds the left
seatback, and the right switch
folds the right seatback.
6. Repeat the steps for the other
seatback, if desired.
The switches (1) can be used to fold
or fold and tumble the second row
seats from the cargo area. See
Second Row Seats 0 59.
Returning the Seatback to the
Upright Position
1. Second Row Power Seat
Buttons
2. Third Row Power Seat
Buttons
To return the seatback to the upright
position:
1. Open the liftgate to access the
controls for the seat.