Diono Monterey 2XT Manuel D'instructions page 24

Use ONLY the vehicle's lap and shoulder belt system
when restraining the child in this booster seat.
use a lap belt only!
ALWAYS make sure the vehicle seat belt can properly
retract before each use.
1. Properly position child
into installed seat (see pg
20). The child should be
sitting upright and
seated all the way back
in the booster seat.
2. Adjust head support to
proper height. The upper
belt guide should be
slightly above the child's
shoulders (at least 1 cm)
24
SECURING THE CHILD
2
1 cm
1
DO NOT