Toyota Prius+ Owner's Manual page 177

Key of letters inserted in the above table:
U: Suitable for "universal" category child restraint system approved
for the use in this mass group.
UF: Suitable for forward-facing "universal" category child restraint
system approved for the use in this mass group.
L1: Suitable for "TOYOTA G0+, BABYSAFE PLUS with SEAT BELT
FIXATION, BASE PLATFORM" (0 to 13 kg [0 to 28 lb.])
approved for the use in this mass group.
L2: Suitable for "TOYOTA KID FIX" (15 to 36 kg [34 to 79 lb.])
approved for the use in this mass group.
X: Not suitable seat position for children in this mass group.
*
1
: Toyota recommend to use "TOYOTA G0+, BABYSAFE PLUS" (0
to 13 kg [0 to 28 lb.]) approved for the use in this mass group.
When using this child restraint system, adjust the second seat
back to 5th lock position from the 1st lock position (most upright
position), and move the second seat to the rear most lock posi-
tion.
*
2
: When you use a child restraint system in this position, remove
the head restraint, adjust the second seat back to 5th lock posi-
tion from the 1st lock position (most upright position), and move
the second seat to the 6th lock position from rear most lock posi-
tion, and adjust the child seat head restraint 4th lock position
from most highest position.
PRIUS +_OM_OM47821E_(EE)
1-8. Safety information
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