warning light TOYOTA COROLLA HATCHBACK 2023 Repair Manual

2806-3. Do-it-yourself maintenance
Terminals
Hold-down clamp
■Before recharging
When recharging, t he battery pro-
duces hydrogen ga s which is flam-
mable and explosive. Therefore,
observe the following precautions
before recharging:
●If recharging wi th the battery
installed on the vehicle, be sure to
disconnect the ground cable.
●Make sure the charger is off when
connecting and disconnecting the
charger cables to the battery.
■After recharging/reconnecting
the battery
●Unlocking the doors using the
smart key system may not be pos-
sible immediately after reconnect-
ing the battery. If this happens,
use the wireless remote control or
the mechanical key to lock/unlock
the doors.
●Start the engine with the engine
switch in ACC. The engine may
not start with the engine switch
turned off. However, the engine
will operate normally from the sec-
ond attempt.
●The engine switch mode is
recorded by the vehicle. If the bat-
tery is reconnected, the vehicle
will return the engi ne switch mode
to the status it was in before the
battery was disconnected. Make
sure to turn off the engine before
disconnecting the battery. Take extra care when connecting the
battery if the engine switch mode
prior to discharge is unknown.
If the system will not start even after
multiple attempts, contact your Toy-
ota dealer.
WARNING
■Chemicals in the battery
The battery contains poisonous
and corrosive sulfuric acid and
may produce hydrogen gas which
is flammable and explosive. To
reduce the risk of death or serious
injury, take the following precau-
tions while working on or near the
battery:
●Do not cause sparks by touch-
ing the battery terminals with
tools.
●Do not smoke or light a match
near the battery.
●Avoid contact with eyes, skin
and clothes.
●Never inhale or swallow electro-
lyte.
●Wear protective safety glasses
when working near the battery.
●Keep children away from the
battery.
■Where to safely charge the
battery
Always charge the battery in an
open area. Do not charge the bat-
tery in a garage or closed room
where there is ins ufficient ventila-
tion.

2856-3. Do-it-yourself maintenance
6
Maintenance and care
Front
To equalize tire wear and extend
tire life, Toyota recommends that
tire rotation is carried out at the
same interval as tire inspection.
Do not fail to initialize the tire pres-
sure warning system after tire rota-
tion.
Your vehicle is equipped with a
tire pressure warning system
that uses tire pressure warning
valves and transmitters to detect
low tire inflation pressure before
serious problems arise.
The tire pressure warning sys-
tem of this vehicle adopts a
2-type warning system.
 When “Adjust Pressure” is
displayed (Normal Warning)
A warning with the tire pressure
warning light and warning buzzer
when there is an unknown level of
low tire pressure with the appear-
ance of the tire due to natural air
leakage as well as the pressure
lowering due to changes in the
pressure according to the outside
temperature. (Ways of coping: 
P.324, 370)
 When “Immediately Check
Tire when Safe” is displayed
(Emergency Warning)
A warning with the tire pressure
warning light and warning buzzer
when there is a k nown level of low
tire pressure with the appearance
of the tire due to pressure suddenly
lowering. (Ways of coping: P.324,
346)
However, the system may not be
able to detect sudden tire ruptures
(bursting, etc.).
The tire pressure detected by the
tire pressure warning system can
be displayed on the multi-informa-
tion display.
■How to change the unit
4.2-inch display
1 Park the vehicle in a safe
place and turn the engine
switch off.
Changing the unit cannot be per-
formed while the vehicle is moving.
2Turn the engine switch to
ON.
3 Select of the multi-infor-
mation display and then
press .
Tire pressure warning
system

2876-3. Do-it-yourself maintenance
6
Maintenance and care
• If tires not equipped with tire pres-sure warning valves and transmit-
ters are used.
• If the ID code on the tire pressure warning valves and transmitters is
not registered in the tire pressure
warning computer.
●Performance may be affected in
the following situations.
• Near a TV tower, electric power plant, gas station, radio station,
large display, airpo rt or other facil-
ity that generates strong radio
waves or electrical noise.
• When carrying a portable radio, cellular phone, cordless phone or
other wireless communication
device.
●When the vehicle is parked, the
time taken for the warning to start
or go off could be extended.
●When tire inflation pressure
declines rapidly for example when
a tire has burst, the warning may
not function.
■Warning performance of the tire
pressure warning system
The warning of the tire pressure
warning system will change in
accordance with driving conditions.
For this reason, the system may
give a warning even if the tire pres-
sure does not reach a low enough
level, or if the p ressure is higher
than the pressure that was adjusted
to when the system was initialized.
When replacing tires or wheels,
tire pressure warning valves and
transmitters must also be
installed.
When new tire pressure warning
valves and transmitters are installed, new ID codes must be
registered in the tire pressure
warning computer and the tire
pressure warning system must
be initialized. Have tire pressure
warning valves and transmitter
ID codes registered by your Toy-
ota dealer. (
P.293)
■Replacing tires and wheels
If the ID code of the tire pressure
warning valve and tr ansmitter is not
registered, the tire pressure warning
system will not work properly. After
driving for about 20 minutes, the tire
pressure warning light blinks for 1
minute and stays on to indicate a
system malfunction.
Installing tire pressure
warning valves and trans-
mitters
NOTICE
■Repairing or replacing tires,
wheels, tire pressure warn-
ing valves, transmitters and
tire valve caps
●When removing or fitting the
wheels, tires or the tire pressure
warning valves and transmit-
ters, contact your Toyota dealer
as the tire pressure warning
valves and transmitters may be
damaged if not handled cor-
rectly.
●Make sure to install the tire
valve caps. If the tire valve caps
are not installed, water could
enter the tire pressure warning
valves and the tire pressure
warning valves could be bound.
●When replacing tire valve caps,
do not use tire valve caps other
than those specified. The cap
may become stuck.

2896-3. Do-it-yourself maintenance
6
Maintenance and care
a safe place and leave it with the
engine switch in ON for approxi-
mately 15 minutes or more, and
then perform the dr iving procedure
again.
7-inch display
1 Park the vehicle in a safe
place and turn the engine
switch off, wait for approxi-
mately 20 minutes or more,
and then start the engine.
The wheel position registration pro-
cedure cannot be performed while
the vehicle is moving.
2 Select of the multi-infor-
mation display and then
press .
3 Press or to select
“Vehicle Settings” and then
press and hold .
4 Press or to select
“TPWS setting” and then
press .
5 Press or to select
“Tire Rotation” and then
press .
6 Select “OK” and then press
.
A message indicating that wheel
position registrati on is being per-
formed will be displayed on the
multi-information display. “---” will
be displayed for th e tire inflation
pressure of each tire and wheel
position registration will begin.
7 Drive straight (with occa-
sional left and right turns) at approximately 25 mph (40
km/h) or more for approxi-
mately 10 to 30 minutes.
When wheel position registration is
complete, a mess
age indicating
that registration has been com-
pleted and the inflation pressure of
each tire will be displayed on the
multi-information display.
Even if it is not possible to drive
continuously at approximately 25
mph (40 km/h) or more, registration
can be completed by driving for a
long time. However, if registration
does not complete after driving for
1 hour or more, par k the vehicle in
a safe place and leave it with the
engine switch in ON for approxi-
mately 15 minutes or more, and
then perform the driving procedure
again.
■When performing wheel posi-
tion registration
●Normally, wheel position registra-
tion can be completed within
approximately 30 minutes.
●Wheel position registration is per-
formed while driving at a vehicle
speed of approxi mately 25 mph
(40 km/h) or more.
■Wheel position re gistration pro-
cedure
●If the engine switch is turned off
while registering the wheel posi-
tion, the next time the engine
switch is turned to ON, the wheel
position registrat ion will resume
and it will not be necessary to
restart the procedure.
●While the position of each wheel is
being determined and the inflation
pressures are not being dis-
played, if the inflation pressure of
a tire drops, th e tire pressure
warning light will come on.
■If the wheel position cannot be
registered easily
●In the following situations, wheel

2906-3. Do-it-yourself maintenance
position registration may take lon-
ger than usual to b e completed or
may not be possible.
• Vehicle is not driven at approxi- mately 25 mph ( 40 km/h) or more
• Vehicle is driven on unpaved
roads
• If wheel position registration does not complete afte r driving for 1
hour or more, park the vehicle in a
safe place for approximately 15
minutes and then drive the vehicle
again.
●If the vehicle is reversed during
wheel position registration, all
data collected until then will be
cleared. Perform driving again.
In the following situations, it will
be necessary to perform the tire
inflation pressure setting proce-
dure of the tire pressure warning
system.
 When the specified tire infla-
tion pressure has changed,
such as due to carried load,
etc.
 When the tire inflation pres-
sure is changed such as
when the tire size is changed.
If the tire inflation pressure has
been adjusted to the specified
level, perform the t ire inflation set-
ting procedure by selecting speci-
fied inflation pressure on the
multi-information display.
When the tire inflation pressure is
to be other than specified, such as
when tires other th an the specified
size are used, etc., set the tire infla-
tion pressure using the current
pressure. Make sure to adjust the tire inflation pressure of each tire to
the appropriate level before per-
forming tire press
ure setting. The
tire pressure warning system oper-
ates based on this tire inflation
pressure.
■Setting by selecting a spec-
ified tire inflation pressure
4.2-inch display
1 Park the vehicle in a safe
place and then start the
engine.
The tire inflation pressure cannot
be set while the ve hicle is moving.
2Select of the multi-infor-
mation display and then
press .
3 Press or to select
“Vehicle Settings” and then
press and hold .
4 Press or to select
“TPWS setting” and then
press .
5 Press or to select
“Tire Pressure Setting” and
then press .
6 Press or to select
“Setting by Specified Pres-
sure” and then press .
7 Select the desired tire pres-
sures, then press .
The tire pressure warning light will
slowly blink 3 times.
After setting the tire inflation pres-
Setting the tire pressure

2916-3. Do-it-yourself maintenance
6
Maintenance and care
sure, a message indicating that set-
ting has been completed will be
displayed on the multi-information
display.
7-inch display
1 Park the vehicle in a safe
place and then start the
engine.
The tire inflation pressure cannot
be set while the vehicle is moving.
2Select of the multi-infor-
mation display and then
press .
3 Press or to select
“Vehicle Settings” and then
press and hold .
4 Press or to select
“TPWS setting” and then
press .
5 Press or to select
“Tire Pressure Setting” and
then press .
6 Press or to select
“Setting by Specified Pres-
sure” and then press . 7
Select the desired tire pres-
sures, then press .
The tire pressure warning light will
slowly blink 3 times.
After setting the tire inflation pres-
sure, a message indicating that set-
ting has been completed will be
displayed on the multi-information
display.
■If the tire inflation pressure can-
not be set easily
●If the tire pressur e warning light
does not blink 3 times when start-
ing the tire inflation pressure set-
ting procedure, t he procedure
may not have started. Perform the
procedure again from the begin-
ning.
●If tire inflation pressure setting
procedure cannot be completed
after performing the above proce-
dure, contact your Toyota dealer.

2926-3. Do-it-yourself maintenance
■Setting using the current
tire inflation pressure
4.2-inch display
1 Park the vehicle in a safe
place and then start the
engine.
The tire inflation pressure cannot
be set while the vehicle is moving.
2Select of the multi-infor-
mation display and then
press .
3 Press or to select
“Vehicle Settings” and then
press and hold .
4 Press or to select
“TPWS setting” and then
press .
5 Press or to select
“Tire Pressure Setting” and
then press .
6 Press or to select
“Setting by Current Pressure”
and then press .
The tire pressure warning light will
slowly blink 3 times and a message
indicating that tire inflation pressure
is being set will be displayed on the
multi-information display.
After setting the tire inflation pres-
sure, a message indicating that set-
ting has been completed will be
displayed on the multi-information
display.
7-inch display
1 Park the vehicle in a safe
place and then start the
engine.
The tire inflation pressure cannot
be set while the ve hicle is moving.
2Select of the multi-infor-
mation display and then
press .
3 Press or to select
“Vehicle Settings” and then
press and hold .
4 Press or to select
“TPWS setting” and then
press .
5 Press or to select
“Tire Pressure Setting” and
then press .
WARNING
■Before performing tire pres-
sure setting
Make sure to adjust the tire infla-
tion pressure of each tire to the
appropriate level before perform-
ing tire pressure setting. Other-
wise, the tire pressure warning
light may not illuminate even if the
tire inflation pressure drops or
may illuminate ev en though the
tire inflation pressure is normal.

2936-3. Do-it-yourself maintenance
6
Maintenance and care
6Press or to select
“Setting by Current Pressure”
and then press .
The tire pressure warning light will
slowly blink 3 times and a message
indicating that tire inflation pressure
is being set will be displayed on the
multi-information display.
After setting the tire inflation pres-
sure, a message indicating that set-
ting has been completed will be
displayed on the multi-information
display.
■Warning performance of the tire
pressure warning system
●When performing the tire pressure
setting using the current tire infla-
tion pressure, the warning timing
of the tire pressu re warning sys-
tem will vary accor ding to the con-
ditions under which tire pressure
setting was performed. Therefore,
a warning may be output even if
the tire inflation pressure drops
slightly or if the tire inflation pres-
sure increases above that when
the tire inflation pressure was set.
●Make sure to perform the tire
pressure setting procedure after
adjusting the tire inflation pres-
sure. Also, make sure the tires are
cold before performing the tire
pressure setting procedure or
adjusting the tire inflation pres-
sure.
■Tire inflation pressure setting
procedure
●If the engine switch is turned off
while setting the tir e inflation pres-
sure, the next time the engine
switch is turned to ON, the setting
procedure will resume and it will
not be necessary to restart the
procedure.
●If the tire inflation pressure setting
procedure is started unnecessar-
ily, adjust the tire inflation pres-
sure to the specified level with the
tires cold and then perform setting
by selecting a specified tire infla-
tion pressure, or perform the tire
inflation pressure setting proce-
dure with the curren t tire inflation
pressure.
■If the tire inflation pressure can-
not be set easily
●Normally, the tire inflation pres-
sure setting pro cedure can be
completed in 2 or 3 minutes.
●If the tire pressur e warning light
does not blink 3 times when start-
ing the tire inflation pressure set-
ting procedure, t he procedure
may not have started. Perform the
procedure again from the begin-
ning.
●If tire inflation pressure setting
procedure cannot be completed
after performing the above proce-
dure, contact your Toyota dealer.
The tire pressure warning valve
and transmitter is equipped with
a unique ID code. When new
tire pressure warning valves and
transmitters are installed, new
ID codes must be registered in
the tire pressure warning com-
puter.
 ID codes can be registered by
Registering ID codes

2946-3. Do-it-yourself maintenance
yourself, but depending on
the driving conditions and
driving environment, registra-
tion may take some time to
complete.
 When using a wheel set
which all of the ID codes have
already been registered, the
wheel set can be changed in
a short amount of time.
Before performing ID code reg-
istration, make sure that no
wheels with tire pressure warn-
ing valve and transmitters
installed are near the vehicle.
4.2-inch display
1 Park the vehicle in a safe
place and turn the engine
switch off, wait for approxi-
mately 20 minutes or more,
and then start the engine.
The ID code registration procedure
cannot be performed while the
vehicle is moving.
2Select of the multi-infor-
mation display and then
press .
3 Press or to select
“Vehicle Settings” and then
press and hold .
4 Press or to select
“TPWS setting” and then
press . 5
Press or to select
“Tire Set Switching” and then
press .
6 Press or to select
“Register New Valve / ID” and
then press ..
7 Press or to select
“Tire Set 1” or “Tire Set 2”.
Then press .
ID codes will be regi stered to the
displayed wheel set.
If ID codes have already been reg-
istered for that wheel set, the tire
pressure warning light will slowly
blink 3 times, and a message indi-
cating that change is occurring will
be displayed on the multi-informa-
tion display.
8 Select “OK” and then press
.
The tire pressure warning light will
slowly blink 3 times and a message
indicating that ID code registration
is being performed will be displayed
on the multi-information display.
Wheel set changing will be can-
celed and registration will begin.
When registration is being per-
formed, the tire pressure warning
light will blink for approximately 1
minute then illumina te and “---” will
be displayed for the inflation pres-

2956-3. Do-it-yourself maintenance
6
Maintenance and care
sure of each tire on the multi-infor-
mation display.
9Drive straight (with occa-
sional left and right turns) at
approximately 25 mph (40
km/h) or more for approxi-
mately 10 to 30 minutes.
When registration is complete, the
tire pressure warni ng light will turn
off and a message indicating that
registration has been completed
will be displayed on the multi-infor-
mation display.
Registration may take longer than
normal to complete if the vehicle
speed cannot be maintained at
approximately 25 mph (40 km/h) or
more. If registration cannot be com-
pleted after driving for 1 hour or
more, perform the registration pro-
cedure again from the beginning.
10 If the tire inflation pressure of
the wheel set installed differs
from that of the previous set,
it will be necessary to per-
form the tire inflation pres-
sure setting procedure of the
tire pressure warning system.
If the specified tire inflation pres-
sure is the same, i t will not be nec-
essary to perform the tire inflation
pressure setting procedure.
7-inch display
1 Park the vehicle in a safe
place and turn the engine
switch off, wait for approxi-
mately 20 minutes or more,
and then start the engine.
The ID code registration procedure
cannot be performed while the
vehicle is moving.
2Select of the multi-infor-
mation display and then
press .
3 Press or to select
“Vehicle Settings” and then
press and hold .
4 Press or to select
“TPWS setting” and then
press .
5 Press or to select
“Tire Set Switching” and then
press .
6 Press or to select
“Register New Valve / ID” and
then press .
7 Press or to select
“Tire Set 1” or “Tire Set 2”.
Then press .
ID codes will be regi stered to the
displayed wheel set.
If ID codes have already been reg-
istered for that wheel set, the tire
pressure warning light will slowly
blink 3 times, and a message indi-
cating that change is occurring will
be displayed on the multi-informa-
tion display.