Front Seats; Power Seat Adjustment; Lumbar Adjustment - GMC Sierra Denali 2017 Owner's Manual

52 Seats and Restraints
the head restraint rearward, grasp
the head restraint and pull forward
fully until the mechanism releases
and allows the head restraint to
return to the full rear position.
The front seat outboard head
restraints are not removable.
Rear Seats
The rear seat has adjustable
headrests in the outboard seating
positions.
The height of the headrest can be
adjusted. Pull the headrest up to
raise it. To lower the headrest, push
the headrest down.
If you are installing a child restraint
in the rear seat, see Securing a
Child Restraint Designed for the
LATCH System under Lower
Anchors and Tethers for Children
(LATCH System) 0 88.

Front Seats

Power Seat Adjustment

To adjust a power seat:
Move the seat forward or
rearward by sliding the control
forward or rearward.
Raise or lower the front part of
the seat cushion by moving the
front of the control up or down.
Raise or lower the seat by
moving the rear of the control up
or down.
To adjust the recline, see Reclining
Seatbacks 0 53.
To adjust the lumbar support, see

Lumbar Adjustment 0 52.

Some vehicles are equipped with a
feature that activates a vibrating
pulse alert in the driver seat to help
the driver avoid crashes. See Driver
Assistance Systems 0 290.
Lumbar Adjustment