Hummer H2 2009 Owner's Manual page 12

Power Reclining Seatbacks
The front seats have power reclining seatbacks.
The control used to operate the seatbacks is located
on the outboard side of the seats.
•
To recline the seatback, press the control toward
the rear of the vehicle.
•
To raise the seatback, press the control toward the
front of the vehicle.
1-8
CAUTION:
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Sitting in a reclined position when your vehicle is
in motion can be dangerous. Even if you buckle
up, your safety belts cannot do their job when you
are reclined like this.
The shoulder belt cannot do its job. In a crash,
you could go into it, receiving neck or other
injuries.
CAUTION: (Continued)