TOYOTA 4RUNNER 2020 Owners Manual (in English)

4817-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)
(Amber)
LDA indicator*4
Indicates a malfunction in the LDA
 When “LDA Unavailable” is displayed on the
multi-information display, turn the LDA system
off, drive the vehicle for a short time, and then
turn the LDA system back on. ( P. 268)
When a message other than above is displayed,
follow the instructions displayed in the message.
Master warning light
A buzzer sounds and warning light comes on flashes
to indicate that the master warning system has
detected a malfunction.
 P. 487
Tire pressure warning light
When the light comes on:
Low tire inflation pressure such as
• Natural causes ( P. 4 8 3 )
• Flat tire ( P. 492)
 Adjust the tire inflation pressure (including the
spare tire) to the specified level.
The light will turn off after a few minutes. In
case the light does not turn off even if the tire
inflation pressure is adjusted, have the system
checked by your Toyota dealer.
When the light comes on after blinking for 1 minute:
Malfunction in the tire p ressure warning system
(  P. 4 8 4 )
 Have the system checked by your Toyota
dealer.
Warning lightWarning light/Details/Actions

4827-2. Steps to take in an emergency
4RUNNER (U)
*1: Parking brake engaged warning buzzer:A buzzer will sound if the vehicle is driven at a speed of appr oximately 3
mph (5 km/h) or more.
*2: Open door warning buzzer: The open door warning buzzer sounds to alert one or more of the doors is
not fully closed (with the vehicle having reached a speed of 3 mph [5 km/h]).
*3: Driver’s seat belt buzzer:
The driver's seat belt warning buzzer sounds to alert the drive r that his or
her seat belt is not fastened. Once the engine switch is turned to ON, the
buzzer sounds. If the seat belt is still unfastened, the buzzer sounds inter-
mittently for a certain period of time after the vehicle reache s a certain
speed.
Front passenger’s seat belt warning buzzer:
The front passenger’s seat belt warning buzzer sounds to alert the front
passenger that his or her seat belt is not fastened. If the sea t belt is unfas-
tened, the buzzer sounds intermittently for a certain period of time after the
vehicle reaches a certain speed.
*4: This light illuminates on the multi-information display.
■ SRS warning light
This warning light system monitors the airbag sensor assembly, front impact
sensors, side impact sensors (front door), side impact sensors (rear), safing
sensor (rear), driver's seat belt buckle switch, front passenger occupant clas-
sification system (ECU and sensors), “AIR BAG ON” and “AIR BAG OFF”
indicator lights, front passenger's seat belt buckle switch, se at belt preten-
sioners, airbags, interconnecting wiring and power sources. (P. 3 5 )
■ Key reminder buzzer (vehicles without a smart key system)
The buzzer indicates that the key has not been removed with the engine off
and the driver’s door opened.
■ Open moon roof reminder buzzer (if equipped)
The buzzer indicates that the moon roof is not fully closed with the engine off
and the driver’s door opened.
■ Front passenger detection senso r, passenger seat belt reminder and
warning buzzer
● If luggage is placed on the front passenger seat, the front pas senger detec-
tion sensor may cause the warning light to flash and the warnin g buzzer to
sound even if a passenger is not sitting in the seat.
● If a cushion is placed on the seat, the sensor may not detect a passenger,
and the warning light may not operate properly.

4837-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)■
If the malfunction indicator lamp comes on while driving
First check the following:
●Is the fuel tank empty?
If it is, fill the fuel tank immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after several trips, contact your Toyota dealer
as soon as possible.
■ When the tire pressure warning light comes on
Inspect the appearance of the tire to check that the tire is no t punctured.
If the tire is punctured: P. 492
If the tire is not punctured:
Carry out the following procedure after the tire temperature ha s lowered suffi-
ciently.
● Check the tire inflation pressure and adjust to the appropriate level.
● If the warning light does not go out even after several minutes , check that
the tire inflation pressure is at the specified level and carry out initialization.
( P. 422)
The warning light may come on again if the above operations are conducted
without first allowing the tire temperature to lower sufficient ly.
■
The tire pressure warning light may come on due to natural caus es
The tire pressure warning light may come on due to natural caus es such
as natural air leaks and tire inflation pressure changes caused by tem-
perature. In this case, adjusting the tire inflation pressure w ill turn off the
warning light (afte r a few minutes).
■When a tire is replace d with a spare tire
Vehicles without P245/60R20 tires
The spare tire is not equipped with a tire pressure warning val ve and
transmitter. If a tire goes flat, the tire pressure warning lig ht will not turn off
even though the flat tire has been replaced with the spare tire . Replace
the spare tire with the repaired tire and adjust the tire infla tion pressure.
The tire press ure warning light will go off after a few minutes.
Vehicles with P245/60R20 tires
The spare tire is also equipped with a tire pressure warning va lve and
transmitter. The tire pressure warning light will turn on if the tire inflation
pressure of the spare tire is low. If a tire goes flat, the tire pressure warn-
ing light will not turn off even though the flat tire has been replaced with
the spare tire. Replace the spar e tire with the repaired tire and adjust the
tire inflation pressure. The t ire pressure warning light will go off after a few
minutes.

4847-2. Steps to take in an emergency
4RUNNER (U)■
If the tire pressure warning system is not functioning
The tire pressure warning syst
em will be disabled in the follow ing condi-
tions:
(When the condition becomes normal, the system will work properly.)
●If tires not equipped with tire pressure warning valves and tra nsmitters
are used
●If the ID code on the tire pressure warning valves and transmit ters is not
registered in the tire pr essure warning computer
●If the tire inflation pressure is 73 psi (500 kPa, 5.1 kgf/cm2 or bar) or
higher
The tire pressure warning system may be disabled in the followi ng condi-
tions:
(When the condition becomes normal, the system will work properly.)
●If electronic devices or facilitie s using similar radio wave frequencies are
nearby
●If a radio set at a similar frequency is in use in the vehicle
●If a window tint that affects the radio wave signals is installed
●If there is a lot of snow or ice on the vehicle, particularly around the
wheels or wheel housings
●If non-genuine Toyota wheels are used (Even if you use Toyota wheels,
the tire pressure warning system may not work properly with som e types
of tires.)
●If tire chains are used
●Vehicles with P245/60R20 tires: If the spare tire is in a locat ion subject
to poor radio wave signal reception
●Vehicles with P245/60R20 tires : If a large metallic object whic h can
interfere with signal reception is put in the luggage compartme nt
■If the tire pressure warning light frequently comes on after bl inking
for 1 minute
If the tire pressure warning light frequently comes on after bl inking for 1
minute when the engine switch is turned on, have it checked by your
Toyota dealer.
■ Customization that can be configured at Toyota dealer
The vehicle speed linked seat belt reminder buzzer can be disab led.
(Customizable features P. 547) However, Toyota recommends that the seat
belt reminder buzzer be operational to alert the driver and fro nt passenger
when seat belts are not fastened.

4857-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)
WARNING
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could
cause a loss of vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust t he tire
inflation pressure immediately.
●If the tire pressure warning light comes on even after tire inf lation pres-
sure adjustment, it is probable that you have a flat tire. Chec k the tires.
If a tire is flat, change it with the spare tire and have the f lat tire
repaired by the nearest Toyota dealer.
●Avoid abrupt maneuvering and braking. If the vehicle tires dete riorate,
you could lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.
■Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly
when cold and inflated to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placard or tire inflation p ressure
label (tire and load information label). (If your vehicle has t ires of a dif-
ferent size than the size indica ted on the vehicle placard or tire inflation
pressure label [tire and load information label], you should de termine
the proper tire inflation p ressure for those tires.)
As an added safety feature, your vehicle has been equipped with a tire
pressure monitoring system (TPMS -tire pressure warning system) that
illuminates a low tire pressure telltale (tire pressure warning light) when
one or more of your tires is significantly under-inflated. Acco rdingly,
when the low tire pressure telltale (tire pressure warning ligh t) illumi-
nates, you should stop and check your tires as soon as possible , and
inflate them to the proper pressure. Driving on a significantly under-
inflated tire causes the tire to overheat and can lead to tire failure.
Under-inflation also reduces fuel efficiency and tire tread lif e, and may
affect the vehicle’s handl ing and stopping ability.
Please note that the TPMS (tire pressure warning system) is not a sub-
stitute for proper tire maintena nce, and it is the driver’s responsibility to
maintain correct tire pressure, even if under-inflation has not reached
the level to trigger illumination of the TPMS low tire pressure telltale (tire
pressure warning light).

4867-2. Steps to take in an emergency
4RUNNER (U)
WARNING
Your vehicle has also been equipped with a TPMS (tire pressure warn-
ing system) malfunction indicato r to indicate when the system is not
operating properly. The TPMS (tire pressure warning system) mal func-
tion indicator is combined with the low tire pressure telltale (tire pressure
warning light). When the system detects a malfunction, the tell tale will
flash for approximately one mi nute and then remain continuously illumi-
nated. This sequence will continue upon subsequent vehicle star t-ups
as long as the malfunction exists . When the malfunction indicator is illu-
minated, the system may not be able to detect or signal low tir e pres-
sure as intended.
TPMS (tire pressure warning system) malfunctions may occur for a vari-
ety of reasons, including the installation of replacement or al ternate tires
or wheels on the vehicle that prevent the TPMS (tire pressure w arning
system) from functioning properly. Always check the TPMS (tire pres-
sure warning system) malfunction telltale after replacing one or more
tires or wheels on your vehicle to ensure that the replacement or alter-
nate tires and wheels allow the TPMS (tire pressure warning sys tem) to
continue to function properly.
NOTICE
■To ensure the tire pressure warning system operates properly
Do not install tires with differ ent specifications or makers, a s the tire
pressure warning system may not operate properly.

4877-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)
Master warning light
The master warning light also
comes on or flashes in order to
indicate that a message is cur-
rently being displayed on the multi-
information display.
Multi-information display
Handling method
Follow the instructions of the mes-
sage on the multi-information dis-
play.
If any of the warning messages are shown again after the following
actions have been performed, contact your Toyota dealer.
If a warning message is displayed
The multi-information display shows warnings of system mal-
functions, incorrectly performed operations, and messages that
indicate a need for maintena nce. When a message is shown,
perform the correction procedur e appropriate to the message.
1
2
3

4887-2. Steps to take in an emergency
4RUNNER (U)
The warning lights and warning buzzers operate as follows depending
on the content of the message. If a message indicates the need for
inspection by a dealer, have the vehicle inspected by your Toyota
dealer immediately.
The operation of the warning lights and warning buzzers may dif fer
from those stated. in this case, perform the correction procedu re
according to the displayed message.
*: A buzzer sounds the first time a message is shown on the multi -informa-
tion display.
Messages and warnings
System
warning lightWarning
buzzer
*Warning
Comes on Comes on Sounds Indicates an important situation, such
as when a system related to driving is
malfunctioning or that danger may
result if the correction procedure is not
performed
Comes onSounds
Comes on
or flashesSounds
Indicates an important situation, such
as when the systems shown on the
multi-information display may be mal-
functioning
FlashesSounds
Indicates a situation, such as when
damage to the vehicle or danger may
result
Comes onDoes not sound
Indicates a condition, such as mal-
function of electrical components, their
condition, or indicates the need for
maintenance
FlashesDoes not sound
Indicates a situation, such as when an
operation has been performed incor-
rectly, or indicates how to perform an
operation correctly

4897-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)
■Warning messages
The warning messages explained below may differ from the actual messages
according to operation conditions and vehicle specifications.
■ System warning lights
The master warning light does not come on or flash in the following cases.
Instead, a separate system warning light will come on along wit h a message
or image shown on the multi-information display.
● Malfunction in the ABS
The ABS warning light comes on. ( P. 478)
● Indicates that the PCS (Pre-Collision System) is not currently functional
The PCS warning light comes on or flashes. ( P. 480)
● Malfunction in the tire pressure warning system
The tire pressure warning light comes on. ( P. 481)
■ If a message instructing to refer to the Owner’s Manual is disp layed
● If the following message is shown, there may be a malfunction.
Immediately stop the vehicle in a safe place and contact your T oyota dealer.
Continuing to drive the vehicle may be dangerous.
• “Braking Power Low Stop in a Safe Place See Owner’s Manual”
• “Oil Pressure Low Stop in a Safe Place See Owner’s Manual”
● If “Engine Coolant Temp High Stop in a Safe Place See Owner’s M anual” is
displayed, follow the instructions accordingly. ( P. 517)
● If “Front Camera Unavailable See Owner’s Manual” is displayed, follow the
instructions accordingly. ( P. 264, 487)
● If the following message is shown, there may be a malfunction.
Immediately have the vehicle inspected by your Toyota dealer.
• “Smart Key System Malfunction See Owner’s Manual”
■ If “High transmission fluid temperature” is shown, it indicates that the
automatic transmission fluid temperature is too high.
Immediately stop the vehicle in a safe place, shift the shift l ever to P and wait
until the warning message and light go off. If the warning message and light
go off, you may start the vehicle again. If the warning message and light do
not go off, contact your Toyota dealer.

4907-2. Steps to take in an emergency
4RUNNER (U)■
If “Auto power off to co nserve battery” is shown
Power was turned off due to the automatic power off function.
Next time when starting the engine, increase the engine speed s lightly and
maintain that level for approximately 5 minutes to recharge the battery.
■ When a message that indicates the need for the shift lever oper ation is
shown
To prevent the shift lever from being operated incorrectly or t he vehicle from
moving unexpectedly, a message that requires shifting the shift lever may be
shown on the multi-information display. In that case, follow th e instruction of
the message and shift the shift lever.
■ When “Headlight System Malfuncti on Visit Your Dealer” is displayed on
the multi-information display
The following system may be malfunctioning. Have the vehicle in spected by
your Toyota dealer.
● Automatic High Beam
■ If “Front Camera Unavailable” or “Front Camera Unavailable See
Owner’s Manual” is displayed
The following systems may be suspended until the problem shown in the
message is resolved. ( P. 264, 487)
● PCS (Pre-Collision System)
● LDA (Lane Departure Alert)
● Dynamic radar cruise control
● Automatic High Beam
■ If a following message is shown, take appropriate action and co nfirm
that the message has disappeared.
*
● “Crawl Not Available Select L4 and Shift to [D] or [R] Position ”
● “Crawl Not Available Check System Operation Conditions”
*: Refer to the “Off-road Driving Owner’s Manual”.
■ If “Oil Maintenance Required Soon” is displayed (U.S.A. only)
Indicates that all maintenance according to the driven distance on the mainte-
nance schedule* should be performed soon.
Comes on approximately 4500 miles (7200 km) after the message has been
reset.
If necessary, perform maintenance. Please reset the message aft er the main-
tenance is performed. ( P. 397)
*: Refer to the separate “Scheduled Maintenance Guide” or “Owner’ s Manual
Supplement” for the maintenance interval applicable to your veh icle.