Graco PM-1373AD - Manual (Page 9)

Place forward-facing on vehicle seating position
with a vehicle lap/shoulder belt. See “Vehicle
Seat Belts” section.
Tether may be used to stabilize booster seat:
Attach tether hook (A) to anchor hardware
(B) and tighten strap to remove any slack
(fig. a).
If tether anchor hardware (B) is not available,
see “Installation of Anchor Hardware“ section.
If not using tether, see “Tether Storage” section.
INSTALLATION
- without harness system
1
7
2
(fig. a)
(A)
(B)
Pull to
tighten