Toyota Prius c 2014 Owner's Manual page 90

1-4. Adjustable components (seats, mirrors, steering wheel)
Seat belt pretensioners (front seats)
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Emergency locking retractor (ELR)
The retractor will lock the belt during a sudden stop or on impact. It may also
lock if you lean forward too quickly. A slow, easy motion will allow the belt to
extend so that you can move around fully.
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Automatic locking retractor (ALR)
When a passenger's shoulder belt is completely extended and then
retracted even slightly, the belt is locked in that position and cannot be
extended. This feature is used to hold the child restraint system (CRS) firmly.
To free the belt again, fully retract the belt and then pull the belt out once
more. (→P. 140)
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Child seat belt usage
The seat belts of your vehicle were principally designed for persons of adult
size.
●
Use a child restraint system appropriate for the child, until the child
becomes large enough to properly wear the vehicle's seat belt. (→P. 136)
●
When the child becomes large enough to properly wear the vehicle's
seat belt, follow the instructions on P. 84 regarding seat belt usage.
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The pretensioner helps the seat
belt to quickly restrain the occu-
pant by retracting the seat belt
when the vehicle is subjected to
certain types of severe frontal or
side collision.
The pretensioner does not acti-
vate in the event of a minor frontal
impact, a minor side impact, a
rear impact or a vehicle rollover.