GMC YUKON XL 2004 Owner's Manual page 17

50/50 Split Bench Seat
If your vehicle has a 50/50 split bench, the seatback(s)
can be folded and the entire seat(s) tilted or removed
from the vehicles.
Folding the Seatbacks
CAUTION:
{
If the seatback isn't locked, it could move
forward in a sudden stop or crash. That could
cause injury to the person sitting there. Always
press rearward on the seatback to be sure it is
locked.
To fold the seatbacks do the following:
•
Pull up on the release lever, labeled 1, located on
the rear of the seatback, and push the seatback
forward.
•
To return the seat to the passenger position, pull up
on the release lever labeled 1 and then pull up on
the seatback until the seatback locks into the upright
position.
Push forward on the seatback to make sure it is locked
into position.
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