GMC 2012 Sierra Series Owner's Manual page 67

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
down on the headrest.
Rear outboard headrests are not
designed to be removed.
Front Seats
Seat Adjustment
WARNING
You can lose control of the
vehicle if you try to adjust a
manual driver seat while the
vehicle is moving. The sudden
movement could startle and
confuse you, or make you push a
pedal when you do not want to.
Adjust the driver seat only when
the vehicle is not moving.
I n f o r ma t i o n P r o v i d e d b y :
Seats and Restraints
To adjust the seat:
1. Lift the bar under the front edge
of the seat cushion to unlock
the seat.
2. Slide the seat to the desired
position and release the bar.
3. Try to move the seat back and
forth to be sure the seat is
locked in place.
3-3