2021 TOYOTA 4RUNNER warning light

360
4RUNNER (U)
5-3. Using the storage features
List of storage features
Auxiliary box (P. 3 6 4 )
Glove box ( P. 3 6 1 )
Bottle holders ( P. 3 6 6 )
Tissue pocket ( P. 3 6 5 ) Cup holders (
P. 3 6 2 )
Pen holder ( P. 365)
Console box ( P. 361)
Coin holder ( P. 365)
WARNING
●Do not leave glasses, lighters or spray cans in the storage spa ces, as this
may cause the following when cabin temperature becomes high:
• Glasses may be deformed by heat or cracked if they come into c ontact
with other stored items.
• Lighters or spray cans may explode. If they come into contact with other
stored items, the lighter may catch fire or the spray can may r elease
gas, causing a fire hazard.
● When driving or when the storage compartments are not in use, k eep the
lids closed. In the event of sudden braking or sudden swerving, an acci-
dent may occur due to an occupant being struck by an open lid or the
items stored inside.
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4076-3. Do-it-yourself maintenance
6
Maintenance and care
4RUNNER (U)
Pull the hood lock release lever.
The hood will pop up slightly.
Push the auxiliary catch lever to
the left and lift the hood.
Hood
Release the lock from the inside of the vehicle to open the hood.
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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 vehic le is in motion
and cause an accident, which may result in death or serious inj ury.

4156-3. Do-it-yourself maintenance
6
Maintenance and care
4RUNNER (U)
■Brake fluid can absorb moisture from the air
Excess moisture in the brake fluid can cause a dangerous loss o f braking effi-
ciency. Use only newly opened brake fluid.
WARNING
■ When filling the reservoir
Take care as brake fluid can harm your hands and eyes and damag e
painted surfaces.
If fluid gets on your hands or in your eyes, flush the affected area with clean
water immediately.
If you still experience discomfort, see a doctor.
NOTICE
■ If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as t he brake pads
wear out or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, there may be a serio us problem.

4186-3. Do-it-yourself maintenance
4RUNNER (U)■
After recharging/reconnecting the battery (vehicles with a smar t key sys-
tem)
The engine may not start. Follow the procedure below to initial ize the system.
Shift the shift lever to P.
Open and close any of the doors.
Restart the engine.
● Unlocking the doors using the smart key system may not be possi ble imme-
diately after reconnecting 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 ACCESSORY mode. The engine
may not start when the engine switch turned from off. However, the engine
will operate normally from the second attempt.
● The engine switch mode is recorded by the vehicle. If the batte ry is recon-
nected, the vehicle will return the engine switch mode to the s tatus it was in
before the battery was disconnected. Make sure to turn off the engine
before disconnect 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 Toyota
dealer.
WARNING
■ Chemicals in the battery
Batteries contain poisonous and corrosive sulfuric acid and may produce
hydrogen gas which is flammable and explosive. To reduce the ri sk of death
or serious injury, take the following precautions while working on or near the
battery:
● Do not cause sparks by touching the battery terminals with tool s.
● Do not smoke or light a match near the battery.
● Avoid contact with eyes, skin and clothes.
● Never inhale or swallow electrolyte.
● Wear protective safety glasses when working near the battery.
● Keep children away from the battery.
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4246-3. Do-it-yourself maintenance
4RUNNER (U)
Your vehicle is equipped with a tire pressure warning system that uses
tire pressure warning valve and t ransmitters 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.
*:If equipped
●If the tire pressure drops below
a predetermined level, the
driver is warned by a screen
display and a warning light.
( P. 478)
*:If equipped
Tire pressure warning system
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*

4266-3. Do-it-yourself maintenance
4RUNNER (U)
Select “Set Pressure” then
press and hold until the
tire pressure warning light
blinks 3 times.
Then a message will be dis-
played on the multi-information
display.
“---” will be displayed on the
multi-information display for
the inflation pressure of each
tire while initialization is being
performed.
Drive straight (with occasional left and right turns) at approxi-
mately 25 mph (40 km/h) or more for approximately 10 to 30 min-
utes.
Initialization is complete when the position of each tire is determined
and the inflation pressure of ea ch tire is displayed on the multi-infor-
mation display.
Initialization may ta ke longer than approximately 1 hour in cer tain
situations, such as when the veh icle is stopped for a long time at
traffic lights, etc. ( P. 431)
◆Registering ID codes
Every tire pressure warning valve and transmitter has a unique ID
code. When replacing a tire pressure warning valve and transmit ter,
it is necessary to reg ister the ID codes.
The ID codes can be registered on of the multi-information dis -
play.
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4276-3. Do-it-yourself maintenance
6
Maintenance and care
4RUNNER (U)■
How to register the ID codes
Select on the multi-information display using the meter con-
trol switches on the steering wheel. ( P. 9 6 )
Select “Vehicle Settings” and then press and hold .
Select “TPWS” and then press .
Select “Change Wheel Set”
then press and hold until
the tire pressure warning
light blinks slowly 3 times.
Then a message will be dis-
played on the multi-information
display.
When registration is being per-
formed, the tire pressure warn-
ing light will blink for
approximately 1 minute then
illuminate and “---” will be dis-
played for the inflation pres-
sure of each tire on the multi-
information display.
Drive straight (with occasional left and right turns) at approxi-
mately 25 mph (40 km/h) or more for approximately 10 to 30 min-
utes.
Registration is complete when the tire pressure warning light t urns
off and the inflation pressure of each tire is displayed on the multi-
information display.
Registration may take longer than approximately 1 hour in certain
situations, such as when the veh icle is stopped for a long time at
traffic lights, etc. ( P. 432)
After registering the ID codes, make sure to initialize the tir e pres-
sure warning system. ( P. 425)
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4286-3. Do-it-yourself maintenance
4RUNNER (U)
■When to replace your vehicle’s tires
Tires should be replaced if:
●The treadwear indicators are showing on a tire.
●You have tire damage such as cuts, splits, cracks deep enough t o
expose the fabric, and bulges indicating internal damage
●A tire goes flat repeatedly or c annot be properly repaired due to the size
or location of a cut or other damage
If you are not sure, consult with your Toyota dealer.
■Replacing tires and wheels
If the ID code of the tire press ure warning valve and transmitt er is not reg-
istered, the tire pressure warni ng system will not work properly. A f t e r d r i v -
ing for about 20 minutes, the tire pressure warning light blink s for 1
minute and stays on to indi cate a system malfunction.
■Tire life
Any tire over 6 years old must be checked by a qualified techni cian even
if it has seldom or never been u sed or damage is not obvious.
■Routine tire inflation pressure checks
The tire pressure warning system does not replace routine tire inflation
pressure checks. Make sure to chec k tire inflation pressure as part of
your routine of daily vehicle checks.
■Maximum load of tire
Check that the number given by dividing the maximum load by 1.1 0 of the
replacement tire is greater than 1/2 of the Gross Axle Weight R atings
(GAWR) of either the front axle or the rear axle, whichever is greater.
For the GAWR, see the Certification
Label. For the maximum load of the tire,
see the load limit at maximum cold tire
inflation pressure mentioned on the
sidewall of the tire. ( P. 5 3 3 )