Toyota PRIUS Manual page 229

 When installing a child restraint system on the front passenger seat
 Selecting an appropriate child restraint system
 Use a child restraint system appropriate for the child until the child
becomes large enough to properly wear the vehicle's seat belt.
If the child is too large for a child restraint system, sit the child on a rear

seat and use the vehicle's seat belt. (P. 170)
CAUTION
Child restraint precautions

 For effective protection in automobile accidents and sudden stops, a child
must be properly restrained, using a seat belt or child restraint system
depending on the age and size of the child. Holding a child in your arms is
not a substitute for a child restraint system. In an accident, the child can be
crushed against the windshield, or between you and the vehicle's interior.
 Toyota strongly urges the use of a proper child restraint system that con-
forms to the size of the child, installed on the rear seat. According to acci-
dent statistics, the child is safer when properly restrained in the rear seat
than in the front seat.
PRIUS PHV_OM_OM47831E_(EE)
When you have to use a child restraint
system on the front passenger seat,
adjust the following:
 The seatback to the most upright posi-
tion
 The seat cushion to the fully rearward
position
1-9. Safety information
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