Page 429 of 528

4297-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)_(OM35B37U)
InteriorbuzzerExterior
buzzerWarning messageDetails/Actions
Once ⎯ The electronic key is not
detected when an attempt is
made to start the engine.
→
Start the engine with the
electronic key present.
Once3
times
The electronic key was carried
outside the vehicle and a door
other than the driver’s door was
opened and closed while the
engine switch was in a mode
other than off.
→Bring the electronic key
back into the vehicle.
The driver’s door was opened
and closed while the electronic
key was not in the vehicle, the
shift lever was in P and the
engine switch was not turned
off.
→Turn the engine switch off
or bring the electronic key
back into the vehicle.
Once
Con-
tinu-
ous
(5-
sec-
onds)An attempt was made to exit
the vehicle with the electronic
key and lock the doors without
first turning the engine switch
off when the shift lever was in P.
→Turn the engine switch off
and lock the doors again.
Once⎯
An attempt was made to drive
when the regular key was not
inside the vehicle.
→Confirm that the elec-
tronic key is inside the
vehicle.
Con-
tinu-
ous
⎯
The driver’s door was opened
while any shift lever other than
P was selected without turning
off the engine switch.
→Shift the shift lever to P.
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Page 430 of 528

4307-2. Steps to take in an emergency
4RUNNER (U)_(OM35B37U)
Con-
tinu-
ousCon-
tinu-
ous
The driver’s door was opened
and closed while the electronic
key was not in the vehicle, the
shift lever was not in P and the
engine switch was not turned
off.
→Shift the shift lever to P.
Bring the electronic key
back into the vehicle.
Once
Con-
tinu-
ous
An attempt was made to lock
the doors using the smart key
system while the electronic key
was still inside the vehicle.
→Retrieve the electronic key
from the vehicle and lock
the doors again.
⎯
Con-
tinu-
ous
An attempt was made to lock
either front door by opening a
door and putting the inside lock
button into the lock position,
then closing the door by pulling
on the outside door handle with
the electronic key still inside the
vehicle.
→Retrieve the electronic key
from the vehicle and lock
the doors again.
Once⎯
• When the doors were
unlocked with the mechani-
cal key and then the engine
switch was pressed, the
electronic key could not be
detected in the vehicle.
• The electronic key could
not be detected in the vehi-
cle even after the engine
switch was pressed two
consecutive times.
→ Touch the electronic key to
the engine switch while
depressing the brake
pedal.
Interior
buzzerExterior
buzzerWarning messageDetails/Actions
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Page 431 of 528

4317-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)_(OM35B37U)
Once⎯
An attempt was made to start
the engine with the shift lever in
an incorrect position.
→Shift the shift lever to P
and start the engine.
⎯⎯
Power was turned off due to the
automatic power off function.
→Next time when starting
the engine, increase the
engine speed slightly and
maintain that level for
approximately 5 minutes
to recharge the battery.
Once⎯
The electronic key has a low
battery.
→Replace the electronic key
battery. ( →P. 384)
Once⎯
The driver’s door was opened
and closed with the engine
switch turned off and then the
engine switch was put in
ACCESSORY or IGNITION ON
mode twice without the engine
being started.
→Press the engine switch
while depressing the brake
pedal.
During an engine starting pro-
cedure in the event that the
electronic key was not function-
ing properly ( →P. 451), the
engine switch was touched with
the electronic key.
→ Press the engine switch
while depressing the brake
pedal within 10 seconds of
the buzzer sounding.
Interior
buzzerExterior
buzzerWarning messageDetails/Actions
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Page 449 of 528

4497-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)_(OM35B37U)
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. 453)
● 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 ve hicle 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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Page 451 of 528
4517-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)_(OM35B37U)
Use the mechanical key
(→ P. 92) in order to perform the
following operations:
Locks all the doors
Closes the windows and moon
roof (turn and hold)
*
( → P. 148, 156)
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. 148, 156)
*: 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. 107) 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 ca n be started by following the
procedure below.
Locking and unlocking the doors
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Page 452 of 528

4527-2. Steps to take in an emergency
4RUNNER (U)_(OM35B37U)
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.
If any of the doors is opened or
closed while the key is being
touched to the switch, an alarm will
sound to indicate that the start
function cannot detect the key.
Press the engine switch.
In the event that the engine still ca nnot 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. 384)
■ 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. 197)
Starting the engine
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2
3
CAUTION
■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.
Page 453 of 528
4537-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)_(OM35B37U)
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. 73)
Open the hood ( →P. 353)
If the vehicle bat tery 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 de aler or a qualified repair shop.
1
2
Page 454 of 528

4547-2. Steps to take in an emergency
4RUNNER (U)_(OM35B37U)
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 e nd 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 v ehicle. Increase the engine speed
slightly and maintain at that level for approximately 5 minutes to
recharge the batter y 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 t he second vehicle and start the
engine of your vehicle by turni ng the engine switch to the “ON”
position (vehicles without a smart key system) or turning the engine
switch to IGNITION ON mode (v ehicles with a smart key system).
Once the vehicle’s engine has star ted, remove the jumper cables in
the exact reverse order from which they were connected.
Once the engine starts, have the v ehicle inspected at your Toyota
dealer as soon as possible.3
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4
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