Hummer 2010 H3 - Manual (Page 104)

3-60 Seats and Restraints
If more than one child restraint
needs to be installed in the rear
seat, be sure to read Where to Put
the Restraint on page 3‑49.
1. Put the child restraint on
the seat.
2. Pick up the latch plate, and run
the lap and shoulder portions of
the vehicle's safety belt through
or around the restraint. The child
restraint instructions will show
you how.
3. For H3T models, tilt the latch
plate to adjust the belt if needed.
4. Push the latch plate into the
buckle until it clicks.
Position the release button on
the buckle so that the safety belt
could be quickly unbuckled if
necessary.
5. For H3 models, pull the rest of
the shoulder belt all the way out
of the retractor to set the lock.