2022 TOYOTA COROLLA ECU

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1
1-1. For safe use
For safety and security
may be sustained from SRS airbags,
due to the extremely high speed deployment (inflation) by hot gases.
●A loud noise and white powder will be emitted.
●Parts of the airbag module (steering wheel hub, airbag cover and inflator)
as well as the front seats, parts of the
front and rear pillars, and roof side rails, may be hot for several minutes.
The airbag itself may also be hot.
●The windshield may crack.
●The brakes and stop lights will be con- trolled automatically. ( P.316)
●The interior lights will turn on automat- ically. ( P.395)
●The emergency flashers will turned on automatically. ( P.462)
●Fuel supply to the engine will be stopped. ( P.470)
●Vehicles with eCall: If any of the fol-
lowing situations occur, the system is
designed to send an emergency call*
to the eCall control center, notifying
them of the vehicle’s location (without needing to push the “SOS” button)
and an agent will attempt to speak
with the occupants to ascertain the level of emergency and assistance
required. If the occupants are unable
to communicate, the agent automati- cally treats the call as an emergency
and helps to dispatch the necessary
emergency services. ( P. 6 4 ) • An SRS airbag is deployed.
• A seat belt pretensioner is activated.
• The vehicle is involved in a severe rear-end collision.*: In some cases, the call cannot be
made. ( P. 6 5 )
■SRS airbag deployment conditions (SRS front airbags)
●The SRS front airbags will deploy in the event of an impact that exceeds
the set threshold le vel (the level of
force corresponding to an approxi- mately 20 - 30 km/h [12 - 18 mph]
frontal collision with a fixed wall that
does not move or deform).
However, this threshold velocity will be
considerably higher in the following situ-
ations: • If the vehicle strikes an object, such
as a parked vehicle or sign pole,
which can move or deform on impact • If the vehicle is involved in an
underride collision, such as a collision
in which the front of the vehicle “underrides”, or goes under, the bed
of a truck
●Depending on the type of collision, it is
possible that only the seat belt
pretensioners will activate.
■SRS airbag deployment conditions (SRS side and curtain shield
airbags [if equipped])
●The SRS side and curtain shield
airbags will deploy in the event of an
impact that exceeds the set threshold level (the level of force corresponding
to the impact force produced by an
approximately 1500 kg [3300 lb.] vehi- cle colliding with the vehicle cabin
from a direction perpendicular to the
vehicle orientation at an approximate speed of 20 - 30 km/h [12 - 18 mph]).
●Vehicles with an SRS driver’s knee airbag: Both SRS curtain shield
airbags may deploy in the event of a
severe side collision.
●Both SRS curtain shield airbags may
also deploy in the event of a severe frontal collision.
■Conditions under which the SRS
airbags may deploy (inflate), other
than a collision
The SRS front airbags and SRS side
and curtain shield airbags may also
deploy if a serious impact occurs to the
underside of your vehicle. Some exam- ples are shown in the illustration.
●Hitting a curb, edge of pavement or hard surface
●Falling into or jumping over a deep hole
●Landing hard or falling

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1-1. For safe use
For safety and security
●Any of the SRS airbags have been
inflated.
●The front of the vehicle is damaged or
deformed, or was involved in an acci- dent that was not severe enough to
cause the SRS front airbags to inflate.
●A portion of a door or its surrounding
area is damaged, deformed or has
had a hole made in it, or the vehicle was involved in an accident that was
not severe enough to cause the SRS
side and curtain shield airbags to inflate.
●Vehicles without an SRS driver’s knee airbag: The pad section of the steer-
ing wheel or dashboard near the front
passenger airbag is scratched, cracked, or otherwise damaged.
●Vehicles with an SRS driver’s knee airbag: The pad section of the steer-
ing wheel, dashboard near the front
passenger airbag or lower portion of the instrument panel is scratched,
cracked, or otherwise damaged.
●Vehicles with SRS side airbags: The
surface of the seats with the SRS side airbag is scratched, cracked, or other-
wise damaged.
●Vehicles with SRS curtain shield
airbags: The portion of the front pil-
lars, rear pillars or roof side rail gar- nishes (padding) containing the SRS
curtain shield airbags inside is
scratched, cracked, or otherwise dam- aged.
WA R N I N G
■SRS airbag precautions
Observe the following precautions
regarding the SRS airbags. Failure to do so may cause death or
serious injury.

401-1. For safe use
WA R N I N G
●The driver and all passengers in the
vehicle must wear their seat belts
properly. The SRS airbags are supplemental
devices to be used with the seat
belts.
●The SRS driver airbag deploys with
considerable force, and can cause
death or serious injury especially if the driver is very close to the
airbag.
Since the risk zone for the driver’s airbag is the first 50 - 75 mm (2 - 3 in.)
of inflation, placing yourself 250 mm
(10 in.) from your driver airbag pro- vides you with a clear margin of
safety. This distance is measured
from the center of the steering wheel to your breastbone. If you sit less than
250 mm (10 in.) away now, you can
change your driving position in sev- eral ways:
• Move your seat to the rear as far as
you can while still reaching the ped- als comfortably.
• Slightly recline the back of the seat. Although vehicle designs vary,
many drivers can achieve the 250
mm (10 in.) distance, even with the driver seat all the way forward, sim-
ply by reclining the back of the seat
somewhat. If reclining the back of your seat makes it hard to see the
road, raise yourself by using a firm,
non-slippery cushion, or raise the seat if your vehicle has that feature.
• If your steering wheel is adjustable, tilt it downward. This points the
airbag toward your chest instead of
your head and neck.
The seat should be adjusted as rec-
ommended above, while still main- taining control of the foot pedals,
steering wheel, and your view of the
instrument panel controls.
●The SRS front passenger airbag also deploys with considerable
force, and can cause death or seri-
ous injury especially if the front pas- senger is very close to the airbag.
The front passenger seat should be
as far from the airbag as possible with the seatback adjusted, so the
front passenger sits upright.
●Improperly seated and/or restrained
infants and children can be killed or
seriously injured by a deploying airbag. 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 safer
for infants and children than the front passenger seat. (P. 4 7 )
●Do not sit on the edge of the seat or lean against the dashboard.
●Do not allow a child to stand in front of the SRS front passenger airbag
unit or sit on the knees of a front
passenger.
●Do not allow the front seat occu-
pants to hold items on their knees.

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1-1. For safe use
For safety and security
WA R N I N G
●Vehicles with SRS side airbags: Do
not lean against the front door.
●Vehicles with SRS curtain shield
airbags: Do not lean against the
door, the roof side rail or the front, side and rear pillars.
●Vehicles with SRS side airbags: Do
not allow anyone to kneel on the passenger seat toward the door or
put their head or hands outside the
vehicle.
●Vehicles without an SRS driver’s
knee airbag: Do not attach anything to or lean anything against areas
such as the dashboard or steering
wheel pad. These items can become projectiles when the SRS
driver and front passenger airbags
deploy.
●Vehicles with an SRS driver’s knee airbag: Do not attach anything to or
lean anything against areas such
as the dashboard, steering wheel pad and lower portion of the instru-
ment panel. These items can
become projectiles when the SRS driver, front passe nger and driver’s
knee airbag deploy.
●Vehicles with SRS side airbags: Do
not attach anything to areas such
as a door, windshield and side win- dows.
●Vehicles with SRS curtain shield airbags: Do not attach anything to
areas such as a door, windshield,
side windows, front or rear pillar, roof side rail and assist grip.
(Except for the speed limit label
P.484)

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1-1. For safe use
For safety and security
WA R N I N G
●Repairs, modifications, removal or
replacement of the steering wheel,
instrument panel, dashboard, seats or seat upholstery, front, side and
rear pillars, roof side rails, front
door panels, front door trims or front door speakers
●Modifications to the front door panel
(such as making a hole in it)
●Repairs or modifications of the front
fender, front bumper, or side of the occupant compartment
●Installation of a grille guard (bull bars, kangaroo bar, etc.), snow
plows or winches
●Modifications to the vehicle’s sus-
pension system
●Installation of electronic devices
such as mobile two-way radios
(RF-transmitter) and CD players
Exhaust gas precautions
Harmful substance to the
human body is included in
exhaust gases if inhaled.
WA R N I N G
Exhaust gases include harmful car-
bon monoxide (CO), which is color-
less and odorless. Observe the following precautions.
Failure to do so may cause exhaust
gases enter the vehicle and may lead to an accident caused by
light-headedness, or may lead to
death or a serious health hazard.
■Important points while driving
●Keep the trunk closed.
●If you smell exhaust gases in the
vehicle even when the trunk is closed, open the windows and have
the vehicle inspected at any author-
ized Toyota retailer or Toyota authorized repairer, or any reliable
repairer as soon as possible.
■When parking
●If the vehicle is in a poorly venti-
lated area or a closed area, such as a garage, stop the engine.
●Do not leave the vehicle with the engine on for a long time.
If such a situation cannot be
avoided, park the vehicle in an open space and ensure that
exhaust fumes do not enter the
vehicle interior.
●Do not leave the engine running in
an area with snow build-up, or where it is snowing. If snowbanks
build up around the vehicle while
the engine is running, exhaust gases may collect and enter the
vehicle.

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1-2. Child safety
For safety and security
1-2.Child safety
“PASSENGER AIR BAG” indica-
tor
“PASSENGER AIR BAG” and “ON”
indicator light turns on when the airbag
system is on, and about after 60 sec-
onds they go off. (only when the engine
switch is in ON)
Airbag manual on-off switch
Vehicles without a smart entry &
start system: Insert the key into the
cylinder and turn to the “OFF” posi-
tion.
The “OFF” indicator light turns on (only
when the engine switch is in ON).
Vehicles with a smart entry & start
system: Insert the mechanical key
into the cylinder and turn to the
“OFF” position.
The “OFF” indicator light turns on (only
when the engine switch is in ON).
■“PASSENGER AIR BAG” indicator information
If any of the following problems occur, it
is possible that there is a malfunction in the system. Have the vehicle inspected
by any authorized Toyota retailer or
Toyota authorized repairer, or any relia- ble repairer.
●The “OFF” indicator does not illumi-
nate when the airbag manual on-off switch is set to “OFF”.
●The indicator light does not change when the airbag manual on-off switch
is switched to “ON” or “OFF”.
Airbag manual on-off
system
This system deactivates the
front passenger airbag.
Only deactivate the airbag
when using a child restraint
system on the front passenger
seat.
System components
Deactivating the front seat
passenger airbag

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1-2. Child safety
For safety and security
Points to remember: P.48
When using a child restraint sys-
tem: P.49
Child restraint sys tem compatibility
for each seating position: P.52
Child restraint sys tem installation
method: P.58
WA R N I N G
■When children are in the vehicle
Never leave children unattended in
the vehicle, and never allow children to have or use the key.
Children may be able to start the vehi-
cle or shift the vehicle into neutral. There is also a danger that children
may injure themselves by playing with
the windows, the moon roof (if
equipped) or other features of the vehicle. In addition, heat build-up or
extremely cold temperatures inside
the vehicle can be fatal to children.
Child restraint systems
Before installing a child
restraint system in the vehicle,
there are precautions that need
to be observed, different types
of child restraint systems, as
well as installation methods,
etc., written in this manual.
 Use a child restraint system
when riding with a small child
that cannot properly use a seat
belt. For the child’s safety,
install the child restraint sys-
tem to a rear se at. Be sure to
follow the insta llation method
that is in the operation manual
enclosed with the restraint sys-
tem.
 The use of a Toyota genuine
child restraint system is rec-
ommended, as it is safer to
use in this vehicle. Toyota gen-
uine child restraint systems
are made specifically for
Toyota vehicles. They can be
purchased at a Toyota dealer.
Table of contents

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1
1-2. Child safety
For safety and security
■When installing a child
restraint system to a front pas-
senger seat
For the safety of a child, install a
child restraint system to a rear seat.
When installing a child restraint
system to a front passenger seat is
unavoidable, adjust the seat as fol-
lows and install t he child restraint
system:
 Move the front seat fully rear-
ward.
 If the passenger seat height can
be adjusted, Adjust the seat
height to the upper most posi-
tion.
 Adjust the seatback angle to the
most upright position.
If there is a gap between the child seat
and the seatback, adjust the seatback
angle until good contact is achieved.
 If the head restraint interferes
with your child restraint system,
and the head restraint can be
removed, remove the head
restraint.
Otherwise, put the head restraint in the
upper most position.
WA R N I N G
●Depending on the child restraint
system, installation may be difficult
or impossible. In those cases, check whether the child restraint
system is suitable for installment in
the vehicle. ( P.52) Be sure to install and observe the usage rules
after carefully reading the child
restraint system fixing method in
this manual, as well as the opera- tion manual enclosed with the child
restraint system.
●Keep the child re straint system
properly secured on the seat even if
it is not in use. Do not store the child restraint system unsecured in
the passenger compartment.
●If it is necessary to detach the child
restraint system, remove it from the
vehicle or store it securely in the trunk.
When using a child restraint
systemWA R N I N G
■When using a child restraint sys-
tem
Observe the following precautions. Failure to do so may result in death or
serious injury.