2010 TOYOTA PRIUS ECU

92
1-4. Adjustable components (seats, mirrors, steering wheel)
PRIUS_U (OM47668U) U.S.A.
Steering wheel
CAUTION
■While driving
Do not adjust the steering wheel. 
Doing so may cause the driver to mishandle the vehicle and an accident,
resulting in death or serious injury.
■ After adjusting the steering wheel
Make sure that the steering wheel is securely locked. 
Otherwise, the steering wheel may move suddenly, possibly causing an
accident and resulting in death or serious injury.
The steering wheel can be adjust ed to a comfortable position.
Hold the steering wheel and
press the lever down.
Adjust to the ideal position by
moving the steering wheel
horizontally and vertically.
After adjustment, pull the lever
up to secure the steering
wheel.
STEP1
STEP2

108
PRIUS_U (OM47668U) U.S.A.
1-7. Theft deterrent system
Immobilizer system
■System maintenance
The vehicle has a maintenance-free type of immobilizer system.
■ Conditions that may cause the system to malfunction
● If the key is in contact with a metallic object.
● If the key is in close proximity to or touching a key to the security system
(key with a built-in transponder chip) of another vehicle.
The vehicle’s keys have built-in tr ansponder chips that prevent the
hybrid system from starting if the key has not been previously regis-
tered in the vehicle’s on-board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
The indicator light flashes after
the “POWER” switch has been
turned OFF to indicate that the
system is operating.

122 1-8. Safety information
PRIUS_U (OM47668U) U.S.A.
CAUTION
■SRS airbag precautions
● The SRS front passenger airbag also deploys with considerable force, and
can cause death or serious injury especially if the front passenger is very
close to the airbag. The front passenger seat should be as far from the air-
bag as possible with the seatback adjusted, so the front passenger sits
upright.
● A deploying airbag can cause death or serious injuries to improperly
seated and/or restrained infants and children. An infant or child who is too
small to use a seat belt should be properly secured using a child restraint
system. Toyota strongly recommends that all infants and children be
placed in the rear seats of the vehicle and properly restrained. The rear
seats are the safest for infants and children. ( P. 132)
●If the seat belt extender has been con-
nected to the driver’s seat belt buckle
but the seat belt extender has not also
been fastened to the latch plate of the
driver’s seat belt, the SRS driver’s air-
bag system will judge that the driver is
wearing the seat belt even though the
seat belt has not been connected. In
this case, the driver’s airbag may not
activate correctly in a collision, resulting
in death or serious injury in the event of
collision. Be sure to wear the seat belt
with the seat belt extender.

135
1-8. Safety information
1
Before driving
PRIUS_U (OM47668U) U.S.A.
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.
● Never install a rear-facing child restraint system on the front passenger
seat even if “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.
Adjust the seatback as upright as possible and always move the seat as
far back as possible even if “AIR BAG OFF” indicator light is illuminated,
because the front passenger airbag could inflate with considerable speed
and force. Failing to do so may cause death or serious injury to the child.
● Do not use the seat belt extender when installing a child restraint system
on the front or rear passenger seat. If installing a child restraint system
with the seat belt extender connected to the seat belt, the seat belt will not
securely hold the child restraint system, which could cause death or seri-
ous injury to the child or other passengers in the event of a sudden stop,
sudden swerve or accident.

136 1-8. Safety information
PRIUS_U (OM47668U) U.S.A.
CAUTION
■Child restraint precautions
● 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, center and rear pillars or
roof side rail from which the side airbags or curtain shield airbags deploy
even if the child is seated in the child restraint system. It is dangerous if
the side airbags and curtain shield airbags inflate, and the impact could
cause death or serious injury to the child.
● Make sure you have complied with all installation instructions provided by
the child restraint manufacturer and that the system is properly secured. If
it is not secured properly, it may cause death or serious injury to the child
in the event of a sudden stop, sudden swerve or an accident.
■ Child restraint lock function belt precaution
Do not allow children to play with the child restraint lock function belt. If the
belt becomes twisted around a child’s neck, it will not be possible to pull the
belt out leading to choking or other serious injuries that could result in death. 
If this occurs and the buckle cannot be unfastened, scissors should be used
to cut the belt.
■ When the child restrain t system is not in use
● Keep the child restraint system properly secured on the seat even if it is
not in use. Do not store the restraint unsecured in the passenger compart-
ment.
● If it is necessary to detach the child restraint system, remove it from the
vehicle or store it securely in the luggage compartment. This will prevent it
from injuring passengers in the event of a sudden stop, sudden swerve or
an accident.

137
1
1-8. Safety information
Before driving
PRIUS_U (OM47668U) U.S.A.
Installing child restraints
Follow the child restraint system manufacturer’s instructions. Firmly
secure child restraints to the rear seats using the LATCH anchors or
a seat belt. Attach the top tether strap when installing a child
restraint. 
The lap/shoulder belt can be used if your child restraint system is
not compatible with the LATCH (Low er Anchors and Tethers for Chil-
dren) system.
Child restraint LATCH anchors
LATCH anchors are provided
for the outboard rear seats.
(Buttons displaying the loca-
tion of the anchors are
attached to the seats.)
Seat belts equipped with a
child restraint locking mecha-
nism ( P. 87)

141
1-8. Safety information
1
Before driving
PRIUS_U (OM47668U) U.S.A.
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.
■
Forward facing Convertible seat
Place the child restraint system
on the seat facing the front 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.
STEP4
STEP1
STEP2

142 1-8. Safety information
PRIUS_U (OM47668U) U.S.A.Fully extend the shoulder strap
and then allow it to retract
slightly into the ALR lock mode.
Lock mode allows the seat belt to
retract only.
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 te
ther strap, the top tether strap
should be latched onto the top tether strap anchor. ( P. 144)
■ Booster seat
Place the child restraint system
on the seat facing the front of the
vehicle.
STEP3
STEP4
STEP5
STEP1