2023 TOYOTA COROLLA HATCHBACK ECU

COROLLA H/B_U
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Pictorial indexSearch by illustration
For safety
and securityMake sure to read through them
(Main topics: Child seat, theft deterrent system)
Vehicle status
information and
indicatorsReading driving-related information
(Main topics: Meters, multi-information display)
Before driving
Opening and closing the doors and windows,
adjustment before driving
(Main topics: Keys, doors, seats)
Driving
Operations and advice which are necessary for
driving
(Main topics: Starting engine, refueling)
Interior featuresUsage of the interior features
(Main topics: Air conditioner, storage features)
Maintenance
and careCaring for your vehicle and maintenance
procedures
(Main topics: Interior and exterior, light bulbs)
When trouble
arisesWhat to do in case of malfunction and emergency
(Main topics: Battery discharge, flat tire)
Vehicle
specificationsVehicle specifications, customizable features
(Main topics: Fuel, oil, tire inflation pressure)
For ownersReporting safety defects for U.S. owners, and seat
belt and SRS airbag instructions for Canadian
owners
IndexSearch by symptom
Search alphabetically

2TABLE OF CONTENTS
For your information ........................5
Reading this manual ...................... 11
How to search ................................ 12
Pictorial index ................................ 13
1-1. For safe use Before driving ........................ 24
For safe driving ..................... 25
Seat belts .............................. 27
SRS airbags .......................... 31
Front passenger occupant clas- sification system.................. 40
Exhaust gas precautions....... 45
1-2. Child safety Riding with children ............... 46
Child restraint systems .......... 47
1-3. Emergency assistance Safety Connect ..................... 60
1-4. Theft deterrent system Engine immobilizer system ... 64
Alarm ..................................... 65
Theft prevention labels (U.S.A.) ............................................ 66
2-1. Instrument cluster Warning lights and indicators............................................ 68
Gauges and meters (4.2-inch display)................................ 72
Gauges and meters (7-inch dis- play) .................................... 75
Multi-information display (4.2-inch display)................. 77
Multi-information display (7-inch display)................................ 83
Fuel consumption information ............................................ 883-1. Key information
Keys ...................................... 92
3-2. Opening, closing and locking the doors
Side doors ............................. 95
Back door .............................. 99
Smart key system .............. 102
3-3. Adjusting the seats Front seats ......................... 107
Rear seats.......................... 108
Head restraints................... 110
3-4. Adjusting the steering wheel and mirrors
Steering wheel ................... 113
Inside rear view mirror ....... 114
Outside rear view mirrors ... 115
3-5. Opening and closing the win- dows
Power windows .................. 117
3-6. Favorite settings My Settings ........................ 120
4-1. Before driving Driving the vehicle.............. 122
Cargo and luggage ............ 128
Vehicle load limits .............. 131
Trailer towing...................... 131
Dinghy towing .................... 132
4-2. Driving procedures Engine

(ignition) switch ...... 133
Continuously variable transmis- sion .................................. 137
Turn signal lever................. 141
Parking brake ..................... 142
Brake Hold ......................... 146
1For safety and security
2Vehicle status information
and indicators
3Before driving
4Driving

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1
For safety and security
For safety and security
.1-1. For safe useBefore driving ................. 24
For safe driving .............. 25
Seat belts ....................... 27
SRS airbags ................... 31
Front passenger occupant classification system .... 40
Exhaust gas precautions ..................................... 45
1-2. Child safety Riding with children ........ 46
Child restraint systems... 47
1-3. Emergency assistance Safety Connect .............. 60
1-4. Theft deterrent system Engine immobilizer system..................................... 64
Alarm.............................. 65
Theft prevention labels (U.S.A.) ........................ 66

241-1. For safe use
1-1.For safe use
Use only floor mats designed
specifically for vehicles of the
same model and model year as
your vehicle. Fix them securely
in place onto the carpet.
1Insert the retaining hooks
(clips) into the floor mat eye-
lets.
2 Turn the upper knob of each
retaining hook (clip) to secure
the floor mats in place.
Always align the marks . The shape of the retaining hooks
(clips) may differ from that shown in
the illustration.
Before driving
Observe the following
before starting off in the
vehicle to ensure safety of
driving.
Floor mat
WARNING
Observe the following precau-
tions.
Failure to do so may cause the
driver’s floor mat to slip, possibly
interfering with t
he pedals while
driving. An unexpectedly high
speed may result or it may
become difficult to stop the vehi-
cle. This could lead to an acci-
dent, resulting in death or serious
injury.
■When installing the driver’s
floor mat
●Do not use floor mats designed
for other models or different
model year vehicles, even if
they are Toyota Genuine floor
mats.
●Only use floor mats designed
for the driver’s seat.
●Always install the floor mat
securely using the retaining
hooks (clips) provided.
●Do not use two or more floor
mats on top of each other.
●Do not place the floor mat bot-
tom-side up or upside-down.

251-1. For safe use
1
For safety and security
Adjust the angle of the seat-
back so that you are sitting
straight up and so that you do
not have to lean forward to
steer. (P.107)
Adjust the seat so that you
can depress the pedals fully
and so that your arms bend
slightly at the elbow when
gripping the steering wheel.
( P.107)
Lock the head restraint in
place with the center of the
head restraint closest to the
top of your ears. ( P.107)
Wear the seat belt correctly.
( P.27)
WARNING
■Before driving
●Check that the floor mat is
securely fixed in the correct
place with all the provided
retaining hooks (clips). Be espe-
cially careful to perform this
check after cleaning the floor.
●With the engine stopped and
the shift lever in P, fully depress
each pedal to the floor to make
sure it does not interfere with
the floor mat.
For safe driving
For safe driving, adjust the
seat and mirror to an appro-
priate position before driv-
ing.
Correct driving posture

271-1. For safe use
1
For safety and security
Seat belts
Make sure that all occu-
pants are wearing their seat
belts before driving the
vehicle.
WARNING
Observe the following precautions
to reduce the risk of injury in the
event of sudden braking, sudden
swerving or an accident.
Failure to do so may cause death
or serious injury.
■Wearing a seat belt
●Ensure that all passengers wear
a seat belt.
●Always wear a seat belt prop-
erly.
●Each seat belt should be used
by one person only. Do not use
a seat belt for more than one
person at once, including chil-
dren.
●Toyota recommends that chil-
dren be seated in the rear seat
and always use a seat belt
and/or an appropriate child
restraint system.
●To achieve a proper seating
position, do not recline the seat
more than necessary. The seat
belt is most effective when the
occupants are sitting up straight
and well back in the seats.
●Do not wear the shoulder belt
under your arm.
●Always wear your seat belt low
and snug across your hips.
■Pregnant women
Obtain medical advice and wear
the seat belt in the proper way.
(
P. 2 8 )
Women who are pregnant should
position the lap belt as low as
possible over the hips in the same
manner as other occupants,
extending the shoulder belt com-
pletely over the shoulder and
avoiding belt contact with the
rounding of the abdominal area.
If the seat belt is not worn prop-
erly, not only the pregnant
woman, but also the fetus could
suffer death or serious injury as a
result of sudden braking or a colli-
sion.
■People suffering illness
Obtain medical advice and wear
the seat belt in the proper way.
(
P. 2 8 )
■When children are in the vehi-
cle
P. 5 5
■Seat belt damage and wear
●Do not damage the seat belts
by allowing the belt, plate, or
buckle to be jammed in the
door.

281-1. For safe use
Extend the shoulder belt so
that it comes fully over the
shoulder, but does not come
into contact with the neck or
slide off the shoulder. 
Position the lap belt as low as
possible over the hips.
 Adjust the position of the
seatback. Sit up straight and
well back in the seat.
 Do not twist the seat belt.
■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. 4 7 )
●When the child becomes large
enough to properl y wear the vehi-
cle’s seat belt, follow the instruc-
tions regarding seat belt usage.
(  P. 2 7 )
■Seat belt extender
If your seat belts cannot be fastened
securely because they are not long
enough, a personalized seat belt
extender is available from your Toy-
ota dealer free of charge.
WARNING
●Inspect the seat belt system
periodically. Check for cuts,
fraying, and loose parts. Do not
use a damaged sea t belt until it
is replaced. Damaged seat belts
cannot protect an occupant
from death or serious injury.
●Ensure that the belt and plate
are locked and the belt is not
twisted.
If the seat belt does not function
correctly, immediately contact
your Toyota dealer.
●Replace the seat assembly,
including the belts, if your vehi-
cle has been involved in a seri-
ous accident, even if there is no
obvious damage.
●Do not attempt to install,
remove, modify, disassemble or
dispose of the seat belts. Have
any necessary repairs carried
out by your Toyota dealer. Inap-
propriate handling may lead to
incorrect operation.
Correct use of the seat
belts
WARNING
■Using a seat belt extender
●Do not wear the seat belt
extender if you can fasten the
seat belt without the extender.

291-1. For safe use
1
For safety and security
1To fasten the seat belt, push
the plate into the buckle until
a click sound is heard.
2 To release the seat belt,
press the release button .
■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.
■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. 4 7 )
1Push the seat belt shoulder
anchor down while pressing
the release button .
2 Push the seat belt shoulder
anchor up while pressing the
release button .
Move the height adjuster up and
down as needed until you hear a
click.
WARNING
●Do not use the seat belt
extender when installing a child
restraint system because the
belt will not securely hold the
child restraint system, increas-
ing the risk of death or serious
injury in the event of an acci-
dent.
●The personalized extender may
not be safe on another vehicle,
when used by another person,
or at a different seating position
other than the one originally
intended.
NOTICE
■When using a seat belt
extender
When releasing the seat belt,
press on the buckle release but-
ton on the extender, not on the
seat belt.
This helps prevent damage to the
vehicle interior and the extender
itself.
Fastening and releasing
the seat belt
Adjusting the seat belt
shoulder anchor height
(front seats)