Page 424 of 530

4227-2. Steps to take in an emergency
4RUNNER (U)_(OM35A83U)
*1: Parking brake engaged warning buzzer:A buzzer will sound if the vehicle is driven at a speed of approximately 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 and front passenger’s seat belt buzzer: The driver’s and front passenger’s seat belt buzzer sounds to alert the
driver and front passenger that
his or her seat belt is not fastened. The
buzzer sounds intermittently for 10 seconds after the vehicle reaches a
speed of 12 mph (20 km/h). Then, if the seat belt is still unfastened, the
buzzer will sound in a different tone for 20 more seconds.
■ 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, seat 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 sensor, passenger seat belt reminder and
warning buzzer
● If luggage is placed on the front passenger seat, the front passenger detec-
tion sensor may cause the warning light to flash and the warning 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.
■ If the malfunction indicator la mp 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.
Page 431 of 530

4297-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)_(OM35A83U)
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.
(Flashes)
(Flashes)
(Displayed alternately)
(Flashes)
(Flashes)
(Flashes)
Page 432 of 530

4307-2. Steps to take in an emergency
4RUNNER (U)_(OM35A83U)
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 entry
& start system while the elec-
tronic 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
(Displayed alternately)
(Flashes)
(Flashes)
(Flashes)
(Flashes)
Page 433 of 530

4317-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)_(OM35A83U)
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. 386)
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. 450), 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
(Flashes)
(Flashes)
Page 449 of 530

4477-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)_(OM35A83U)
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. 452)
● 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 v ehicle inspected by your Toyota
dealer.
The starter motor does not turn ov er, 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)
1
2
3
4
Page 450 of 530
4487-2. Steps to take in an emergency
4RUNNER (U)_(OM35A83U)
Set the parking brake.
Vehicles without a smart key system:
Turn the engine switch to the “ACC” position.
Vehicles with a smart key system:
Turn the engine switch to ACCESSORY mode.
Depress the brake pedal.
Pry the cover up with a flathead
screwdriver or equivalent tool.
To prevent damage to the cover,
cover the tip of the screwdriver with
a rag.
Press the shift lock override
button.
The shift lever can be shifted while
the button is pressed.
If the shift lever cannot be shifted from P
If the shift lever cannot be shifted with your foot on the brake
pedal, there may be a problem with the shift lock system (a sys-
tem to prevent accidental operation of the shift lever). Have the
vehicle inspected by your Toyota dealer immediately.
The following steps may be used as an emergency measure to
ensure that the shift lever can be shifted:
1
2
3
4
5
Page 452 of 530

4507-2. Steps to take in an emergency
4RUNNER (U)_(OM35A83U)
Use the mechanical key
( P. 96) in order to perform the
following operations:
Locks all the doors
Unlocks all the doors
Turning the key rearward unlocks
the driver’s door. Turning the key
once again unlocks the other
doors.
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 c annot be started, contact your Toyota
dealer.
If the electronic ke y does not operate
properly (vehicles with a smar t key system)
If communication between the electronic key and vehicle is
interrupted ( P. 110) 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
1
2
Starting the engine
1
2
3
Page 453 of 530
4517-2. Steps to take in an emergency
7
When trouble arises
4RUNNER (U)_(OM35A83U)
■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. 386)
■ 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. 196)