GMC 2002 Yukon Denali Owner's Manual page 22

1. Fold the seatbacks forward using the instructions
listed previously.
3. Lift the rear of the seat up from the floor and push it
forward until it locks into place. You will not be able
to unlatch the seat from the floor unless the seatback
is folded down.
The seat will now remain locked in the upright position.
2. Unlatch the seat from
the floor by pulling up
on the lever labeled 2,
located on the rear of
the seat.
Returning the Seat(s) to an Upright Position
To return the seatback to an upright position, do
the following:
1. Pull the lever labeled 3 toward you.
2. While still holding the lever 3 toward you, grasp the
top of the seat and pull it toward you slightly.
3. Let go of lever 3 and pull the seat completely down.
4. Push down on the seat firmly. Try pulling it up to be
sure it is locked into place.
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