Toyota 4Runner (2020 year). Instruction - part 32

504

7-2. Steps to take in an emergency

4RUNNER (U)

Lay down the tire with the outer
side  facing  up,  and  install  the
holding  bracket,  inserting  the
claw into the wheel lug nut hole.
Turn  the  jack  handle  extension
clockwise  to  take  up  slack  in
the chain.
Then, check to ensure the claw
is in the wheel lug nut hole and
the holding bracket is centered
in the wheel hub.

Holding bracket
Claw

Vehicles 

without 

kinetic

dynamic  suspension:  While
raising,  secure  the  tire,  taking
care  that  the  tire  goes  straight
up without catching on any sur-
rounding part to prevent it from
flying forward during a collision
or sudden braking.
Vehicles  with  kinetic  dynamic  suspension:  While  raising,  pull  the
tire towards the rear of the vehicle, taking care that the tire goes up
without  catching  on  any  surrounding  part  to  prevent  it  from  flying
forward during a collision or sudden braking.

Tightening torque:

34.4 ft

•

lbf (46.6 N

•

m, 4.8 kgf

•

m)

WARNING

■

Stowing the flat tire

Failure to follow steps listed under stowing the tire may result in damage

to the spare tire carrier and lose of the tire, which could result in death or

serious injury.

Stowing the flat/spare tire, jack and tools

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7-2. Steps to take in an emergency

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4RUNNER (U)

Confirm that the tire is not loose
after tightening:

Push and pull the tire
Try rotating

Vishually check to ensure the tire

is not hung on surrounding parts.
If  looseness  or  misassembly

exists,  repeat  step 

  and  step

.

Repeat step 

 any time the tire is lowered or disturbed.

Stow the tools and jack securely.

■

After completing the tire change

The tire pressure warning system must be reset. (



P. 423)

■

When using the spare tire (vehicles without P245/60R20 tires)

As the spare tire is not equipped with a tire pressure warning valve and

transmitter, low inflation pressure of the spare tire will not be indicated by

the tire pressure warning system. Also, if you replace the spare tire after

the tire pressure warning light comes on, the light remains on.

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7-2. Steps to take in an emergency

4RUNNER (U)

NOTICE

■

Do not drive the vehicle with a flat tire

Do not continue driving with a flat tire.

Driving even a short distance with a flat tire can damage the tire and the

wheel beyond repair.

■

When stowing the flat tire

Ensure that there is no object caught between the tire and the vehicle

underbody.

■

When replacing the tires

●

When removing or fitting the wheels, tires or the tire pressure warning

valve and transmitter, contact your Toyota dealer as the tire pressure

warning  valve  and  transmitter  may  be  damaged  if  not  handled  cor-

rectly.

●

Replace the grommets for the tire pressure warning valves and trans-

mitters as well.

■

To avoid damage to the tire pressure warning valves and transmit-

ters

When  a  tire  is  repaired  with  liquid  sealants,  the  tire  pressure  warning

valve  and  transmitter  may  not  operate  properly.  If  a  liquid  sealant  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. 423)

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4RUNNER (U)

One of the following may be the cause of the problem:

●

There may not be sufficient fuel in the vehicle’s tank. 
Refuel the vehicle.

●

The engine may be flooded. 
Try to restart the engine again following correct starting procedures.
(



P. 209, 212)

●

There may be a malfunction in the engine immobilizer system. 
(



P. 76)

One of the following may be the cause of the problem:

●

The battery may be discharged. (



P. 513)

●

The battery terminal connections may be loose or corroded.

The engine starting system may be malfunctioning due to an electrical
problem such as an open circuit or a blown fuse. However, an interim
measure is available to start the engine. (



P. 508)

If the engine will not start

If  the  engine  will  not  start  even  though  correct  starting  proce-
dures are being followed (



P. 209, 212), consider each of the fol-

lowing points:

The engine will not start even though the starter motor operates
normally.

The starter motor turns over slowly, the interior lights and head-
lights  are  dim,  or  the  horn  does  not  sound  or  sounds  at  a  low
volume.

The starter motor does not turn over

508

7-2. Steps to take in an emergency

4RUNNER (U)

One of the following may be the cause of the problem:

●

One or both of the battery terminals may be disconnected.

●

The battery may be discharged. (



P. 513)

●

There may be a malfunction in the steering lock system (vehicles
with a smart key system).

Contact your Toyota dealer if the problem cannot be repaired, or if repair
procedures are unknown.

When the engine does not start, the following steps can be used as an
interim measure to start the engine if the engine switch is functioning
normally:

Set the parking brake.
Shift the shift lever to P.
Turn the engine switch to ACCESSORY mode.
Press  and  hold  the  engine  switch  for  about  15  seconds  while
depressing the brake pedal firmly.

Even if the engine can be started using the above steps, the system
may  be  malfunctioning.  Have  the  vehicle  inspected  by  your  Toyota
dealer.

The starter motor does not turn over, the interior lights and head-
lights do not turn on, or the horn does not sound.

Emergency start function (vehicles with a smart key system)

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7-2. Steps to take in an emergency

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4RUNNER (U)

Remove the cover on the back
door trim.

Tear  the  plastic  film.  Remove
the cover.

Pull the lever.

If you cannot operate back door opener

If the back door opener does not operate, there may be a prob-
lem  with  the  back  door  opener  system.  Have  the  vehicle
inspected by your Toyota dealer immediately. 
The following steps may be used as an emergency measure to
ensure that the back door can be opened from the inside.

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510

7-2. Steps to take in an emergency

4RUNNER (U)

Use the mechanical key 
(



P. 104) in order to perform the

following operations:

Locks all the doors
Closes  the  windows  and  moon
roof (turn and hold)

*

 

(



P. 164, 172)

Unlocks all the doors

Turning the key rearward unlocks the driver’s door. Turning the key once
again unlocks the other doors.

Opens the windows and moon roof (turn and hold)

*

 

(



P. 164, 172)

*

: This setting must be customized at your Toyota dealer.

If the electronic key does not operate 

properly (vehicles with a smart key system)

If  communication  between  the  electronic  key  and  vehicle  is
interrupted  (



P.  122)  or  the  electronic  key  cannot  be  used

because the battery is depleted, the smart key system and wire-
less  remote  control  cannot  be  used.  In  such  cases,  the  doors
can  be  opened  and  the engine  can  be  started  by  following  the
procedure below.

Locking and unlocking the doors

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4RUNNER (U)

Ensure that the shift lever is in P and depress the brake pedal.
Touch  the  Toyota  emblem  side
of  the  electronic  key  to  the
engine switch.

When  the  electronic  key  is
detected, a buzzer sounds and the
engine switch will turn to IGNITION
ON mode.
When  the  smart  key  system  is
deactivated  in  customization  set-
ting,  the  engine  switch  will  turn  to
ACCESSORY mode.

Firmly depress the brake pedal and check that 

 is displayed

on the multi-information display.
Press the engine switch shortly and firmly.

In the event that the engine still cannot be started, contact your Toyota
dealer.

■

Stopping the engine

Shift the shift lever to P and press the engine switch as you normally do when
stopping the engine.

■

Replacing the key battery

As the above procedure is a temporary measure, it is recommended that the
electronic key battery be replaced immediately when the battery is depleted.
(



P. 443)

■

Changing engine switch modes

Within 10 seconds of the buzzer sounding, release the brake pedal and press
the engine switch.
The engine does not start and modes will be changed each time the switch is
pressed.(



P. 213)

■

When the electronic key does not work properly

●

Make sure that the smart key system has not been deactivated in the cus-
tomization setting. If it is off, turn the function on. 
(Customizable features: 



P. 547)

●

Check if battery-saving mode is set. If it is set, cancel the function. 
(



P. 121)

Starting the engine

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512

7-2. Steps to take in an emergency

4RUNNER (U)

WARNING

■

When  using  the  mechanical  key  and  operating  the  power  windows,
power back window or moon roof

Operate the power windows, power back window or moon roof after check-
ing to make sure that there is no possibility of any passenger having any of
their body parts caught in the window or moon roof. 
Also, do not allow children to operate the mechanical key. It is possible for
children and other passengers to get caught in the power windows, power
back window or moon roof.

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7-2. Steps to take in an emergency

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4RUNNER (U)

If you have a set of jumper (or booster) cables and a second vehicle
with a 12-volt battery, you can jump start your vehicle by following the
steps below.

Confirm  that  the  electronic  key
is being carried.

When  connecting  the  jumper  (or
booster) cables, depending on the
situation,  the  alarm  may  activate
and doors locked. (



P. 80)

Open the hood (



P. 405)

If the vehicle battery is discharged

The following procedures may be used to start the engine if the
vehicle’s battery is discharged.
You can also call your Toyota dealer or a qualified repair shop.

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514

7-2. Steps to take in an emergency

4RUNNER (U)

Connect the jumper cables according to the following procedure:

Connect a positive jumper cable clamp to the positive (+) battery
terminal on your vehicle.
Connect the clamp on the other end of the positive cable to the
positive (+) battery terminal on the second vehicle.
Connect a negative cable clamp to the negative (-) battery termi-
nal on the second vehicle.
Connect  the  clamp  at  the  other  end  of  the  negative  cable  to  a
solid, stationary, unpainted metallic point away from the battery
and any moving parts, as shown in the illustration.

Start the engine of the second vehicle. Increase the engine speed
slightly  and  maintain  at  that  level  for  approximately  5  minutes  to
recharge the battery of your vehicle.
Vehicles with a smart key system only: Open and close any of the
doors of your vehicle with the engine switch off.
Maintain  the  engine  speed  of  the  second  vehicle  and  start  the
engine  of  your  vehicle  by  turning  the  engine  switch  to  the  “ON”
position (vehicles without a smart key system) or turning the engine
switch to IGNITION ON mode (vehicles with a smart key system).
Once the vehicle’s engine has started, remove the jumper cables in
the exact reverse order from which they were connected.

Once  the  engine  starts,  have  the  vehicle  inspected  at  your  Toyota
dealer as soon as possible.

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■

Starting the engine when the battery is discharged 

The engine cannot be started by push-starting.

■

To prevent battery discharge

●

Turn off the headlights and the audio system while the engine is off.

●

Turn off any unnecessary electrical components when the vehicle is running
at a low speed for an extended period, such as in heavy traffic.

■

Charging the battery

The  electricity  stored  in  the  battery  will  discharge  gradually  even  when  the
vehicle is not in use, due to natural discharge and the draining effects of cer-
tain electrical appliances. If the vehicle is left for a long time, the battery may
discharge,  and  the  engine  may  be  unable  to  start.  (The  battery  recharges
automatically during driving.)

■

When recharging or replacing the battery

●

Vehicles with a smart key system: In some cases, it may not be possible to
unlock  the  doors  using  the  smart  key  system  when  the  battery  is  dis-
charged. Use the wireless remote control or the mechanical key to lock or
unlock the doors.

●

The engine may not start on the first attempt after the battery has recharged
but will start normally after the second attempt. This is not a malfunction.

●

Vehicles with a smart key system: The engine switch mode is memorized by
the vehicle. When the battery is reconnected, the system will return to the
mode it was in before the battery was discharged. Before disconnecting the
battery, turn the engine switch off.
If you are unsure what mode the engine switch was in before the battery dis-
charged, be especially careful when reconnecting the battery.

●

Make sure that the key is not inside the vehicle when recharging or replac-
ing  the  battery. The  key  may  be  locked  in  the  vehicle  if  the  alarm  is  acti-
vated. (



P. 80)

516

7-2. Steps to take in an emergency

4RUNNER (U)

WARNING

■

Avoiding battery fires or explosions

Observe the following precautions to prevent accidentally igniting the flam-
mable gas that may be emitted from the battery:

●

Make sure each jumper cable is connected to the correct terminal and that
it is not unintentionally in contact with any other than the intended terminal.

●

Do not allow the other end of the jumper cable connected to the “+” termi-
nal to come into contact with any other parts or metal surfaces in the area,
such as brackets or unpainted metal.

●

Do not allow the + and - clamps of the jumper cables to come into contact
with each other.

●

Do  not smoke,  use matches, cigarette lighters  or  allow  open flame near
the battery.

■

Battery precautions

The  battery  contains  poisonous  and  corrosive  acidic  electrolyte,  while
related parts contain lead and lead compounds. Observe the following pre-
cautions when handling the battery:

●

When working with the battery, always wear safety glasses and take care
not to allow any battery fluids (acid) to come into contact with skin, clothing
or the vehicle body.

●

Do not lean over the battery.

●

In  the  event  that  battery  fluid  comes  into  contact  with  the  skin  or  eyes,
immediately wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention
can be received.

●

Always wash your hands after handling the battery support, terminals, and
other battery-related parts.

●

Do not allow children near the battery.

NOTICE

■

When handling jumper cables

When connecting the jumper cables, ensure that they do not become entan-
gled in the cooling fans or engine drive belt.

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7-2. Steps to take in an emergency

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●

The  needle  of  the  engine  coolant  temperature  gauge  (



P.  88)

enters the red zone or a loss of engine power is experienced.
(For example, the vehicle speed does not increase.)

●

Steam comes out from under the hood.

Stop the vehicle in a safe place and turn off the air conditioning sys-
tem, and then stop the engine.
If you see steam: 
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After  the  engine  has  cooled
down  sufficiently,  inspect  the
hoses and radiator core (radia-
tor) for any leaks.

Radiator
Cooling fan

If a large amount of coolant leaks,
immediately  contact  your  Toyota
dealer.

The coolant level is satisfactory
if  it  is  between  the  “F”  and  “L”
lines on the reservoir.

Reservoir
“F” line
“L” line
Radiator cap

If your vehicle overheats

The following may indicate that your vehicle is overheating:

Correction procedures

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518

7-2. Steps to take in an emergency

4RUNNER (U)

Add  engine  coolant  if  neces-
sary. (



P. 407)

Water  can  be  used  in  an  emer-
gency if engine coolant is unavail-
able.

Start the engine to check that the radiator cooling fan operate and
to check for coolant leaks from the radiator or hoses.
If the fan are not operating: 
Stop the engine immediately and contact your Toyota dealer.
If the fan are operating: 
Have the vehicle inspected at the nearest Toyota dealer.

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WARNING

■

When inspecting under the hood of your vehicle

Observe the following precautions. 
Failure to do so may result in serious injury such as burns.

●

If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot.

●

Keep hands and clothing (especially a tie, a scarf or a muffler) away from
the fans and belts.

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●

Do not loosen the radiator cap and the
coolant  reservoir  cap  while  the  engine
and radiator are hot.
High  temperature  steam  or  coolant
could spray out.

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7-2. Steps to take in an emergency

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NOTICE

■

When adding engine coolant

Wait until the engine has cooled down before adding engine coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot engine too
quickly can cause damage to the engine.

■

To prevent damage to the cooling system

Observe the following precautions:

●

Avoid contaminating the coolant with foreign matter (such as sand or dust
etc.).

●

Do not use any coolant additives.