GMC 2001 Denali Owner's Manual page 35

Denali XL: The passenger's side of the second row
60/40 or rear bucket seat has an easy entry/exit feature.
This makes it easy to get in and out of the third row seat.
To operate the easy entry seat, do the following:
2. Tilt the seatback toward the front of the vehicle and
the seat will release.
3. Pull (push if you are exiting the third row with no
assistance) the seat forward until it stops.
Be sure to return the seat to the passenger position when
finished. Pull forward and push rearward on the seat to
make sure it is locked in place.
1-22
1. Turn the release
lever, located near
the back of the
seat, rearward.
Heated Rear Seats (Second Row)
The ignition must be in RUN for this feature to operate.
To activate the heated seats, press the button once for
the HI heat setting. Press the button again for the LO
heat setting. To turn off the heated seats, press the button
a third time. An indicator light on the button will
illuminate for each heat setting anytime the heated seats
are operating.
The heated seats will be canceled after the ignition is
turned to OFF. If you still want to use the heated seat
feature after you restart your vehicle, you will need to
press the heated seat button again.
The controls are
located on the back of
the center console.