The First Years True Fit si C680 Instruction Manual page 18

Section 6 - Selecting A Vehicle Seating Location
LAP BELTS
Manually-adjusted lap belt
This type of lap belt is tightened by
pulling on the excess belt once it is
buckled.
Lap belt with automatic
locking retractor(ALR)
This belt system's retractor locks
automatically and does not allow the lap
belt to lengthen once it is buckled.
Tighten by feeding the autobelt back
into the retractor while pushing down
on the infant restraint.
Unsafe Vehicle Seat Belt Systems:
DO NOT
use this Infant seat with the following
vehicle seat belts.
NO
Passive Restraints
Motorized
Shoulder Belt
Lap Belt with Emergency Locking
Retractor-ELR
Do Not Use! -This lap belt stays loose
when when buckled and can move until
locks in sudden stop or crash.
17
NO
Passive Restraints
Lap Or Shoulder
Belt Mounted On
Front Door