Hummer 2007 H3 Owner's Manual page 16

Returning the Seatbacks to an Upright
Position
CAUTION:
{
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.
CAUTION:
{
A safety belt that is improperly routed,
not properly attached, or twisted will not
provide the protection needed in a crash.
The person wearing the belt could be
seriously injured. After raising the rear
seatback, always check to be sure that
the safety belts are properly routed and
attached, and are not twisted.
16
To return the seatback(s) to the upright position,
do the following:
1. Lift the seatback up and push it rearward all
the way.
2. Place your hand under the front of the seat
cushion and lift the cushion while moving it
rearward until it latches into position.
3. Pull forward on the seatback and push down
on the seat cushion to make sure the seat is
securely in place.