2023 TOYOTA 4RUNNER run flat

465
When trouble arises7
4RUNNER (U)7-1. Essential information
Emergency flashers .......... 466
If your vehicle has to be stopped in
an emergency ................. 467
If the vehicle is submerged or water
on the road is rising ........ 468
7-2. Steps to take in an emergency
If your vehicle needs to be towed ..................... 469
If you think something is wrong .......................... 475
Fuel pump shut off system ............................ 476
If a warning light turns on or a warning
buzzer sounds ................ 477
If a warning message is displayed ..................... 488
If you have a flat tire.......... 493
If the engine will not start ................................. 509
If you cannot operate back door opener ............ 511
If the electronic key does not operate
properly ........................... 512
If the vehicle battery is discharged ................... 515
If your vehicle overheats ........................ 519
If the vehicle becomes stuck ............................... 522

469
7
When trouble arises
4RUNNER (U)
7-2. Steps to take in an emergency
If your vehicle needs to be towed
If towing is necessary, we recommend having your vehicle
towed by your Toyota dealer or commercial towing service,
using a wheel-lift type t ruck or flatbed truck.
Use a safety chain system for all towing, and abide by all stat e/
provincial and local laws.
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■ When towing the vehicle
■ While towing
When towing using cables or chains, avoid sudden starts, etc. w hich place
excessive stress on the towing eyelets, cables or chains. The towing eye-
lets, cables or chains may become damaged, broken debris may hit people,
and cause serious damage.
2WD models: Be sure to transport the
vehicle with all four wheels raised off the
ground. If the vehicle is towed with the
tires contacting the ground, the drivetrain
and related parts may be damaged or an
accident may occur due to a change in
direction of the vehicle.
4WD models: Be sure to transport the
vehicle with all four wheels raised off the
ground. If the vehicle is towed with the
tires contacting the ground, the drivetrain
or related parts may be damaged, the
vehicle may fly off the truck.

4727-2. Steps to take in an emergency
4RUNNER (U)
When using a flat-bed truck to transport the vehicle, use tire strapping
belts. Refer to the owner's manual of the flat-bed truck for th e tire
strapping method.
In order to suppress vehicle movement during transportation, se t the
parking brake and turn the engine switch off.
If a tow truck is not available in an emergency, your vehicle m ay be
temporarily towed using cables or chains secured to the emergen cy
towing hooks. This should only be attempted on hard surfaced roads
for at most 50 miles (80 km) at under 18 mph (30 km/h).
A driver must be in the vehicle to steer and operate the brakes . The
vehicle’s wheels, drive train, a xles, steering and brakes must be in
good condition.
Using a flatbed truck
Emergency towing

4757-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)
●Fluid leaks un der the vehicle.
(Water dripping from the air conditioning a fter use is normal.)
● Flat-looking tires or uneven tire wear
● Engine coolant temperature gauge needle continually points high er
than normal.
● Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the engine
● Engine missing, stumb ling or running roughly
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one s ide when driving on a level road
● Loss of brake effectiveness, spongy feeling, pedal almost touch es
the floor
If you think something is wrong
If you notice any of the followi ng symptoms, your vehicle proba -
bly needs adjustment or repair. Contact your Toyota dealer as
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

4767-2. Steps to take in an emergency
4RUNNER (U)
Follow the procedure below to restart the engine after the system is
activated.
Turn the engine switch to ACCESSORY mode or turn it off.
Restart the engine.
Fuel pump shut off system
To minimize the risk of fuel leakage when the engine stalls or
when an airbag inflates upon collision, the fuel pump shut off
system stops the supply of fuel to the engine.
NOTICE
■Before starting the engine
Inspect the ground under the vehicle.
If you find that fuel has leaked onto the ground, the fuel system has been
damaged and is in need of repair. Do not restart the engine.
1
2

4817-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)
(Flashes or
illuminates)
PCS warning light
When a buzzer sounds simultaneously:
Indicates a malfunction has occurred in the PCS (Pre-
Collision System).
 Have the vehicle inspected by your Toyota dealer
immediately.
When a buzzer does not sound:
The PCS (Pre-Collision System) has become tempo-
rarily unavailable, corrective action may be necessary.
 Follow the instructions displayed on the multi-
information display. ( P. 237, 488)
If the PCS (Pre-Collision System) or VSC (Vehicle Sta-
bility Control) system is disabled, the PCS warning
light will illuminate.
 P. 248
(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, wait for a little while, and then turn the LDA
system back on. ( P. 252)
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. 488
Tire pressure warning light
When the light comes on:
Low tire inflation pressure such as
• Natural causes ( P. 4 8 4 )
• Flat tire ( P. 493)
 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 5 )
 Have the system checked by your Toyota
dealer.
Warning lightWarning light/Details/Actions

4847-2. Steps to take in an emergency
4RUNNER (U)■
When the tire pressure warning light comes on
Inspect the appearance of the ti
re to check that the tire is not punctured.
If the tire is punctured: P. 493
If the tire is not punctured:
Carry out the following procedure after the tire temperature has lowered
sufficiently.
●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 ini-
tialization. ( P. 4 2 9 )
The warning light may come on again if the above operations are con-
ducted without first allowing t he tire temperature to lower suf ficiently.
■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.

4857-2. Steps to take in an emergency
7
When trouble arises
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. 549) 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.