Front Seats; Power Seats - GMC 2010 Sierra Denali Owner's Manual

Pull the head restraint up to raise it. To lower the head
restraint, press the button, located on the top of the
seatback, and push the restraint down.
Push down on the head restraint after the button is
released to make sure that it is locked in place.
The head restraints are not designed to be removed.
The rear seat has head rests that can be adjusted up
and down.

Front Seats

Power Seats

Driver's Seat with Power Seat Control, Power
Recline, and Power Lumbar shown
On a vehicle with power seats, the controls used to
operate them are located on the outboard side of the
seats.
Move the seat forward or rearward by sliding the control
forward or rearward.
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