ECU TOYOTA PRIUS 2018 (in English) Owner's Manual

531-1. For safe use
PRIUS_OM_OM47B89U_(U)
1
For safety and security
■There is a malfunction in the system
*1: The system judges a person of adult size as an adult. When a smalleradult sits in the front passenger seat, the system may not recognize him/
her as an adult depending on his/her physique and posture.
*2: In the event the front passenger is wearing a seat belt.
*3: In the event the front passenger does not wear a seat belt.
*4: For some children, child in seat, child in booster seat or child in convertible
seat, the system may not recognize him/her as a child. Factors which may
affect this can be the physique or posture.
*5: Never install a rear-facing child restraint system on the front passengerseat. A forward-facing child restraint system should only be installed on the
front passenger seat when it is unavoidable. ( →P. 62)
*6: In case the indicator light is not illuminated, consult this manual on how to
install the child restraint system properly. ( →P. 58)
Indicator/
warning light
“AIR BAG ON” and “AIR BAG OFF” indicator lights“AIR BAG OFF”
SRS warning lightOnSeat belt reminder light
Devices
Front passenger airbagDeactivated
Side airbag on the front passenger seat
ActivatedCurtain shield airbag in the front
passenger side
Seat cushion airbag in the front passenger sideDeactivated
Front passenger’s seat belt pretensionerActivated

551-1. For safe use
PRIUS_OM_OM47B89U_(U)
1
For safety and security
WARNING
■Front passenger occupant classi fication system precautions
● If an adult sits in the front passenger seat, the “AIR BAG ON” indicator
light is illuminated. If the “AIR BAG OFF” indicator is illuminated, ask the
passenger to sit up straight, well back in the seat, feet on the floor, and
with the seat belt worn correctly. If the “AIR BAG OFF” indicator still
remains illuminated, either ask the passenger to move to the rear seat, or
if that is not possible, move the front passenger seat fully rearward.
● When it is unavoidable to install a forward-facing child restraint system on
the front passenger seat, install the child restraint system on the front pas-
senger seat in the proper order. ( →P. 58)
● Do not modify or remove the front seats.
● Do not kick the front passenger seat or subject it to severe impact. Other-
wise, the SRS warning light may come on to indicate a malfunction of the
front passenger occupant classification system. In this case, contact your
Toyota dealer immediately.
● Child restraint systems installed on the rear seat should not contact the
front seatbacks.
● Do not use a seat accessory, such as a cushion and seat cover, that cov-
ers the seat cushion surface.
● Do not modify or replace the upholstery of the front seat.
● Adjust the front passenger seat so that the head restraint does not touch
the ceiling. If the head restraint is left in contact with the ceiling, the system
may not detect the front passenger properly, leading to improper operation
of the airbags.

571-2. Child safety
PRIUS_OM_OM47B89U_(U)
1
For safety and security
Riding with children
●It is recommended that children sit in the rear seats to avoid acci-
dental contact with the shift lever, wiper switch etc.
● Use the rear door child-protector lock or the window lock switch to
avoid children opening the door while driving or operating the
power window accidentally. ( →P. 174, 204)
● Do not let small children operate equipment which may catch or
pinch body parts, such as the power window, hood, back door,
seats etc.
Observe the following precautions when children are in the vehi-
cle.
Use a child restraint system appropriate for the child, until the
child becomes large enough to pr operly wear the vehicle’s seat
belt.
WARNING
Never leave children unattended in the vehicle, and never allow children to
have or use the key.
Children may be able to start the vehicle or shift the vehicle into neut\
ral.
There is also a danger that children may injure themselves by playing with
the side windows, the moon roof (if equipped) or other features of the vehi-
cle. In addition, heat build-up or extremely cold temperatures inside the
vehicle can be fatal to children.

591-2. Child safety
PRIUS_OM_OM47B89U_(U)
1
For safety and security
The laws of all 50 states of the U.S.A. as well as Canada now require
the use of child restraint systems.
●Prioritize and observe the warnings, as well as the laws and regula-
tions for child re straint systems.
● Use a child restraint system until the child becomes large enough to
properly wear the vehicle’s seat belt.
● Choose a child restraint system that suits your vehicle and is appro-
priate to the age and size of the child.
Points to remember

601-2. Child safety
PRIUS_OM_OM47B89U_(U)
WARNING
■When a child is riding
Observe the following precautions.
Failure to do so may result in death or serious injury.
● For effective protection in automobile accidents and sudden stops, a child
must be properly restrained, using a seat belt or child restraint system
which is correctly installed. For installation details, refer to the operation
manual enclosed with the child restraint system. General installation
instruction is provided in this manual.
● Toyota strongly urges the use of a proper child restraint system that con-
forms to the weight and size of the child, installed on the rear seat. Accord-
ing to accident statistics, the child is safer when properly restrained in the
rear seat than in the front seat.
● Holding a child in your or someone else’s arms is not a substitute for a
child restraint system. In an accident, the child can be crushed against the
windshield or between the holder and the interior of the vehicle.
■ Handling the child restraint system
If the child restraint system is not properly fixed in place, the child or other
passengers may be seriously injured or even killed in the event of sudden
braking, sudden swerving, or an accident.
● If the vehicle were to receive a strong impact from an accident, etc., it is
possible that the child restraint system has damage that is not readily visi-
ble. In such cases, do not reuse the restraint system.
● Make sure you have complied with all installation instructions provided
with the child restraint system manufacturer and that the system is prop-
erly secured.
● Keep the child restraint system properly secured on the seat even if it is
not in use. Do not store the child restraint system unsecured in the pas-
senger compartment.
● If it is necessary to detach the child restraint system, remove it from the
vehicle or store it securely in the luggage compartment.

611-2. Child safety
PRIUS_OM_OM47B89U_(U)
1
For safety and security
■Types of child restraint system installation methods
Confirm with the operation manual enclosed with the child restraint
system about the installation of the child restraint system.
Child restraint system
Installation methodPage
Seat belt
attachment P. 6 5
Child
restraint
LATCH
anchors
attachment P. 7 1
Anchor
brackets (for
top tether
strap) attach-
ment
P. 7 4

631-2. Child safety
PRIUS_OM_OM47B89U_(U)
1
For safety and security
WARNING
■When using a child restraint system
Observe the following precautions.
Failure to do so may result in death or serious injury.
● Never install a rear-facing child restraint system on the front passenger
seat even if the “AIR BAG OFF” indicator light is illuminated. In \
the event
of an accident, the force of the rapid inflation of the front passenger airbag
can cause death or serious injury to the child if the rear-facing child
restraint system is installed on the front passenger seat.
● A forward-facing child restraint system may be installed on the front pas-
senger seat only when it is unavoidable. A child restraint system that
requires a top tether strap should not be used in the front passenger seat
since there is no top tether strap anchor for the front passenger seat.
● When a booster seat is installed, always ensure that the shoulder belt is
positioned across the center of the child’s shoulder. The belt should be
kept away from the child’s neck, but not so that it could fall off the child’s
shoulder.
●A forward-facing child restraint system
may be installed on the front passenger
seat only when it is unavoidable. When
installing a forward-facing child restraint
system on the front passenger seat,
move the seat as far back as possible,
even if the “AIR BAG OFF” indicator
light is illuminated.
If the head restraint interferes with the
child restraint system installation and
the head restraint can be removed,
remove the head restraint.
● Do not allow the child to lean his/her
head or any part of his/her body against
the door or the area of the seat, front or
rear pillars, or roof side rails from which
the SRS side airbags or SRS curtain
shield airbags deploy even if the child is
seated in the child restraint system. It is
dangerous if the SRS side airbags and
curtain shield airbags inflate, and the
impact could cause death or serious
injury to the child.

651-2. Child safety
PRIUS_OM_OM47B89U_(U)
1
For safety and security
A child restraint system for a small child or baby must itself be prop-
erly restrained on the seat with the lap portion of the lap/shoulder belt.
◆Installing child restraint system using a seat belt (child
restraint lock function belt)
Install the child restraint system in accordance to the operation
manual enclosed with the child restraint system.
■Rear-facing — Infant seat/convertible seat
Place the child restraint sys-
tem on the rear seat facing
the rear of the vehicle.
Run the seat belt through the
child restraint system and
insert the plate into the
buckle. Make sure that the
belt is not twisted.
Fully extend the shoulder belt
and allow it to retract to put it
in lock mode. In lock mode,
the belt cannot be extended.
Child restraint system fixed with a seat belt
1
2
3

661-2. Child safety
PRIUS_OM_OM47B89U_(U)
While pushing the child
restraint system down into
the rear seat, allow the
shoulder belt to retract until
the child restraint system is
securely in place.
After the shoulder belt has
retracted to a point where there
is no slack in the belt, pull the
belt to check that it cannot be
extended.
After installing the child restraint system, rock it back and forth to
ensure that it is installed securely. ( →P. 70)
■Forward-facing — Convertible seat
If installing the child restraint system to the front passenger seat
is unavoidable, refer to P. 62 for front passenger seat adjustment.
If the head restraint interferes
with the child restraint sys-
tem installation and the head
restraint can be removed,
remove the head restraint.
( → P. 195)
Place the child restraint sys-
tem on the seat facing the
front of the vehicle.
4
5
1
2
3

671-2. Child safety
PRIUS_OM_OM47B89U_(U)
1
For safety and security
Run the seat belt through the
child restraint system and
insert the plate into the
buckle. Make sure that the
belt is not twisted.
Fully extend the shoulder belt
and allow it to retract to put it
in lock mode. In lock mode,
the belt cannot be extended.
While pushing the child
restraint system into the rear
seat, allow the shoulder belt
to retract until the child
restraint system is securely
in place.
After the shoulder belt has
retracted to a point where there
is no slack in the belt, pull the
belt to check that it cannot be
extended.
If the child restraint has a top tether strap, follow the child
restraint manufacturer’s operation manual regarding the installa-
tion, using the top tether strap to latch onto the top tether strap
anchor. (→ P. 7 4 )
After installing the child restraint system, rock it back and forth to
ensure that it is installed securely. ( →P. 70)
4
5
6
7
8