2022 TOYOTA HIGHLANDER warning light

4086-3. Do-it-yourself maintenance
1Pull the hood lock release
lever.
The hood will pop up slightly.
2Pull up the auxiliary catch
lever and lift the hood.
3 Hold the hood open by insert-
ing the support rod into the
slot.
Hood
Opening the hood
WARNING
■Pre-driving check
Check that the hood is fully closed
and locked.
If the hood is not locked properly,
it may open while the vehicle is in
motion and cause an accident,
which may result i n death or seri-
ous injury.
■After installing the support
rod into the slot
Make sure the rod supports the
hood securely preventing it from
falling down onto your head or
body.
NOTICE
■When closing the hood
Be sure to return the support rod
to its clip before closing the hood.
Closing the hood with the support
rod not clipped could cause the
hood to bend.

4146-3. Do-it-yourself maintenance
Check the radiator and con-
denser and clear away any for-
eign objects. If either of the
above parts is extremely dirty or
you are not sure of their condi-
tion, have your vehicle
inspected by your Toyota dealer.
■Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN”
lines on the tank.
■Adding fluid
Make sure to check the fluid
type and prepare the necessary
item.
 Fluid type
SAE J1703 or FMVSS No.116 DOT
3 brake fluid
SAE J1704 or FMVSS No.116 DOT
4 brake fluid
Item
Clean funnel
■Brake fluid can absorb moisture
from the air
Excess moisture in the brake fluid
can cause a dangerous loss of brak-
ing efficiency. Use only newly
opened brake fluid.
Check the battery as follows.
■Battery exterior
Make sure that the battery termi-
nals are not corroded and that
there are no loose connections,
cracks, or loose clamps.
Checking the radiator and
condenser
WARNING
■When the engine is hot
Do not touch the r adiator or con-
denser as they may be hot and
cause serious injuries, such as
burns.
Checking and adding the
brake fluid
WARNING
■When filling the reservoir
Take care as brake fluid can harm
your hands and eyes and damage
painted surfaces.
If fluid gets on your hands or in
your eyes, flush the affected area
with clean water immediately.
If you still experi ence discomfort,
see a doctor.
NOTICE
■If the fluid level is low or high
It is normal for the brake fluid level
to go down slight ly as the brake
pads wear out or when the fluid
level in the accumulator is high.
If the reservoir needs frequent
refilling, there m ay be a serious
problem.
Battery

4156-3. Do-it-yourself maintenance
6
Maintenance and care
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 power switch on
the charger is off when connecting
and disconnecting the charger
cables to the battery.
■After recharging/reconnecting
the battery
The engine may not start. Follow the
procedure below to initialize the sys-
tem.
1 Shift the shift lever to P.
2 Open and close any of the doors.
3 Restart the engine.
●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 disconnected and recon-
nected, the vehicle will return the
engine switch mode to the status it
was in before the battery was dis-
connected. 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 the
battery being disconnected is
unknown.
If the system will not start even after
multiple attempts, contact your Toy-
ota dealer.
WARNING
■Chemicals in the battery
Batteries contain poisonous and
corrosive sulfur ic 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.

4206-3. Do-it-yourself maintenance
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 detected by
the tire pressure warning sys-
tem can be displayed on the
multi-information display.
( P.84, 93)
The illustration used is intended as
an example, and may differ from
the image that is actually displayed
on the multi-information display.
4.2-inch display
7-inch display
If the tire pressure drops
below a predetermined level,
the driver is warned by a
screen display and a warning
light. ( P.460)
The illustration used is intended as
an example, and may differ from
the image that is actually displayed
on the multi-information display.
4.2-inch display
7-inch display
■Routine tire inflation pressure
checks
The tire pressure warning system
does not replace routine tire inflation
pressure checks . Make sure to
check tire inflation pressure as part
of your routine o f daily vehicle
checks.
■Situations in which the tire
pressure warning system may
not operate properly
●In the following cases, the tire
pressure warning system may not
Tire pressure warning
system

4236-3. Do-it-yourself maintenance
6
Maintenance and care
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.426)
■Replacing tires and wheels
If the ID code of the tire pressure
warning valve and transmitter 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.
■The tire pressure warning
system must be initialized
in the following circum-
stances:
 When the tire inflation pres-
sure is changed such as
when changing traveling
speed.
 When the tire inflation pres-
sure is changed such as
when the tire size is changed.
 When rotating the tires.
 After registering the ID codes.
( P.426)
When the tire pressure warning
system is initialized, the current
tire inflation pressure is set as
the benchmark pressure.
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 pr essure 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 ti re valve caps,
do not use tire valve caps other
than those specified. The cap
may become stuck.
■To avoid damage to the tire
pressure warning valves and
transmitters
When a tire is repa ired with liquid
sealants, the tire pressure warn-
ing valve and transmitter may not
operate properly. If a liquid seal-
ant is used, contact your Toyota
dealer or other qualified service
shop as soon as possible. Make
sure to replace the tire pressure
warning valve and transmitter
when replacing the tire. ( P.422)
Initializing the tire pres-
sure warning system

4246-3. Do-it-yourself maintenance
■How to initialize the tire
pressure warning system
4.2-inch display
1 Park the vehicle in a safe
place and turn the engine
switch off.
Initialization cannot be performed
while the vehicle is moving.
2Adjust the tire inflation pres-
sure to the specified cold tire
inflation pressure level.
( P.505)
Make sure to adjust the tire pres-
sure to the specifie d cold tire infla-
tion pressure level. The tire
pressure warning system will oper-
ate based on this pressure level.
3 Turn the engine switch to
ON.
4 Press or of the meter
control switch to select .
5 Press or of the meter
control switch, select and
then press and hold .
6 Press or of the meter
control switch, select “TPWS”
and then press .
7 Press or of the meter
control switch, select “Set
Pressure” and then press
and hold .
7-inch display
1 Park the vehicle in a safe
place and turn the engine
switch off.
Initialization cannot be performed while the vehicle is moving.
2
Adjust the tire inflation pres-
sure to the specified cold tire
inflation pressure level.
( P.505)
Make sure to adjust the tire pres-
sure to the specifie d cold tire infla-
tion pressure level. The tire
pressure warning system will oper-
ate based on this pressure level.
3Turn the engine switch to
ON.
4 Press or of the meter
control switch to select .
5 Press or of the meter
control switch, select and
then press and hold .
6 Press or of the meter
control switch, select “TPWS”
and then press .
7 Press or of the meter
control switch, select “Set
Pressure” and then press
and hold .
“Setting Tire Pressure Warning
System” will be displayed on the
multi-information display and the
tire pressure warning light will
blink 3 times.
When the message disappears,
initialization is complete.
A message is displayed on the
multi-information display. Also,
“--” is displayed for inflation
pressure of each tire on the
multi-information display while

4256-3. Do-it-yourself maintenance
6
Maintenance and care
the tire pressure warning sys-
tem determines the position.
Drive the vehicle at approxi-
mately 25 mph (40 km/h) or
more for approximately 10 to 30
minutes until the inflation pres-
sure of each tire is displayed on
the multi-information display.
When initialization is complete,
the inflation pressure of each
tire will be displayed on the
multi-information display.
Even if the vehicle is not driven
at approximately 25 mph (40
km/h) or more, initialization can
be completed by driving for a
long time. However, if initializa-
tion does not complete after
driving for 1 hour or more, park
the vehicle in a safe place for
approximately 20 minutes and
then drive the vehicle again.
■Initializing the tire pressure
warning system
Initialize the syst em with the tire
inflation pressure adjusted to the
specified level.
■Initialization procedure
●Make sure to carry out initializa-
tion after adjusting the tire inflation
pressure.
Also, make sure the tires are cold
before carrying out initialization or
tire inflation pressure adjustment.
●If you have accidentally turned the
engine switch off during initializa-
tion, it is not necessary to restart
the initialization ag ain as initializa-
tion will restart aut omatically when
the engine switch has been turned
to ON for the next time.
●If you accidentally restart the ini- tialization when initialization is not
necessary, adjust the tire inflation
pressure to the s
pecified level
when the tires are cold, and con-
duct initialization again.
●While the position of each tire is
being determined and the inflation
pressures are not being displayed
on the multi-information display, if
the inflation pressure of a tire
drops, the tire pressure warning
light will come on.
■When initializat ion of the tire
pressure warning system has
failed
Initialization may take longer to
complete if the vehi cle is driven on
an unpaved road. When performing
initialization, drive on a paved road if
possible. Depending on the driving
environment and condition of the
tires, initialization will be completed
in approximately 10 to 30 minutes. If
initialization is not complete after
driving approximately 10 to 30 min-
utes, continue driving for a while.
If the inflation pressure of each tire
is not displayed after driving for
approximately 1 ho ur, perform the
following procedure.
●Park the vehicle in a safe place for
approximately 20 minutes. Then
drive straight (with occasional left
and right turns) at approximately
25 mph (40 km/h) or more for
approximately 10 to 30 minutes.
However, in the following situations,
the tire inflation pr essure will not be
recorded and the system will not
operate properly. Perform initializa-
tion again.
●If the vehicle is reversed during
initialization, the data up to that
point is reset, so p erform the ini-
tialization procedure again from
the beginning.
●When operating the tire pressure
warning reset switch, the tire pres-
sure warning light does not blink 3
times.

4266-3. Do-it-yourself maintenance
●After performing initialization, the
tire pressure warning light blinks
for 1 minute then stays on while
driving.
If the inflation pressure of each tire
is still not displayed, have the vehi-
cle inspected by your Toyota dealer.
Every tire pressure warning
valve and transmitter has a
unique ID code. When replacing
a tire pressure warning valve
and transmitter, it is necessary
to register the ID code. When
registering the ID codes, per-
form the following procedure.
4.2-inch display
1 Park the vehicle in a safe
place and turn the engine
switch off.
Initialization cannot be performed
while the vehicle is moving.
2Adjust the tire inflation pres-
sure to the specified cold tire
inflation pressure level.
( P.505)
Make sure to adjust the tire pres-
sure to the specifie d cold tire infla- tion pressure level. The tire
pressure warning system will oper-
ate based on this
pressure level.
3Turn the engine switch to
ON.
4 Press or of the meter
control switch to select .
5 Press or of the meter
control switch, select and
then press and hold .
6 Press or of the meter
control switch, select “TPWS”
and then press .
7 Press or of the meter
control switch, select
“Change Wheel” and then
press until the tire pres-
sure warning light starts
slowly blinking 3 times.
The change wheel set mode is acti-
vated and registra tion is started.
Then a message will be displayed
on the multi-information display.
When registration is being per-
formed, the tire pressure warning
light will blink for approximately 1
minute then illuminate and “--” will
be displayed for the inflation pres-
sure of each tire on the multi-infor-
mation display.
8 Drive the vehicle at approxi-
mately 25 mph (40 km/h) or
more for approximately 10 to
30 minutes.
When registration is completed, the
tire pressure warni ng light will go off
and the inflation pressure of each
tire will be disp layed on the
multi-information display.
WARNING
■When initializing the tire pres-
sure warning system
Do not initializing tire inflation
pressure without first adjusting
the tire inflation pressure to the
specified level. Otherwise, the tire
pressure warning light may not
come on even if the tire inflation
pressure is low, or it may come on
when the tire inflation pressure is
actually normal.
Registering ID codes