Hummer 2008 H3 Owner's Manual page 9

CAUTION:
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If the seatback is not locked, it could move
forward in a sudden stop or crash. That
could cause injury to the person sitting there.
Always push and pull on the seatback to be
sure it is locked.
The seats have manual reclining seatbacks. The lever
used to operate them is located on the outboard side
of the seats.
To recline the seatback:
1. Lift the recline lever and move the seatback to
the desired position, then release the lever to
lock the seatback in place.
2. Push and pull on the seatback to make sure
it is locked.
To return the seatback to an upright position:
1. Lift the lever fully without applying pressure to
the seatback and the seatback will return to
the upright position.
2. Push and pull on the seatback to make sure
it is locked.
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