Page 600 of 704

600 5-2. Steps to take in an emergency
4RUNNER_U*: If the engine does not start when the electronic key is inside the vehi-
cle, the electronic key battery may be depleted or there may be diffi-
culties receiving the si gnal from the key. (
P. 4 3)
ContinuousContinuous
Smart key system warning
light
Indicates that the driver’s
door has been opened and
closed with the shift lever not
in P, the “ENGINE START
STOP” switch in any mode
other than off and the elec-
tronic key has been taken out
of the detection area • Shift the shift
lever to P.
• Confirm the location of the
electronic
key.
Once
Sounds
for 10
seconds
(Remains on for 60
seconds) Smart key system warning
light
Indicates that the electronic
key has been taken out of
the vehicle and an attempt
was made to lock the doors
with the “ENGINE START
STOP” switch in any mode
other than off Turn the
“ENGINE
START
STOP” switch
off and lock
the doors
again.
Once
Smart key system warning
light
Indicates that an attempt was
made to drive when the elec-
tronic key was not present Confirm the
location of the
electronic
key.
Interior
buzzerExterior
buzzerWarning
lightWarning light/DetailsCorrection procedure
Page 625 of 704
5
When trouble arises
625
5-2. Steps to take in an emergency
4RUNNER_U
If the electronic key does not operate properly (vehicles with a smar t key system)
Locking and unlocking the doorsUse the mechanical key (P.
33) in order to perform the fol-
lowing operations:
Locks all doors
Unlocks all doors
Turning the key rearward
unlocks the driver’s door.
Turning the key once again
unlocks the other doors.
If communication between the electronic key and vehicle is inter-
rupted ( P. 43) or the electronic key cannot be used because the
battery is depleted, the smart key system and wireless remote con-
trol cannot be used. In such cases, the doors can be opened and the
engine can be started by following the procedure below.
CTH52AS001
Page 629 of 704

5
When trouble arises
629
5-2. Steps to take in an emergency
4RUNNER_U
■
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 run-
ning at a low speed for an extended period, such as in heavy traffic.
■ When the battery is removed or discharged
Make sure that the key is not inside the vehicle when recharging or replacing
the battery. The key may be locked in the vehicle if the alarm is activated.
(P. 117)
■ 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.)
■ Precautions when the battery is di scharged (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 discharged. Use the wireless remote con-
trol 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.
● The “ENGINE START STOP” 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 bat-
tery, turn the “ENGINE START STOP” switch off.
If you are unsure what mode the “ENGINE START STOP” switch was in
before the battery discharged, be especially careful when reconnecting
the battery.
Page 664 of 704

664
4RUNNER_U
6-2. Customization
Customizable features
ItemFunctionDefault settingCustomizedsetting
Smart key
system and
wireless
remote con-
trol
( P. 35, 49) Operation signal
(Emergency flashers)
On Off
Operation signal
(Buzzer) On Off
Open door warning
function (when locking
the vehicle) On Off
Automatic door locking
function (if a door is not
opened after being
unlocked) On Off
Time elapsed before
automatic door lock
function is activated if
door is not opened after
being unlocked 60 seconds
30 seconds
120 seconds
Smart key
system
( P. 35) Smart key system On Off
Wireless
remote con-
trol
( P. 49) Wireless remote control On
Off
Panic function OnOff
Operation signal
(Buzzer volume) Level 7 OFF to level 6
Your vehicle includes a variety of electronic features that can be per-
sonalized to suit your prefer
ences. Programming these preferences
requires specialized equipment and may be performed by your
Toyota dealer.
Some function settings are changed simultaneously with other functions
being customized. Contact your Toyota dealer for further details.
Page 665 of 704

665
6-2. Customization
6
Vehicle specifications
4RUNNER_U
Door lock
(
P. 53,
625) Speed-detecting auto-
matic door lock function
Off On
Shifting the shift lever to
position other than P
locks all doors On Off
Shifting the shift lever to
P unlocks all doors On Off
Opening driver’s door
unlocks all doors Off On
Power win-
dows
( P. 98) Mechanical key linked
operation (close)
Off On
Mechanical key linked
operation (open) Off On
Wireless remote control
linked operation (open) Off On
Wireless remote control
linked operation signal
(Buzzer) On Off
Automatic
light control
system
( P. 203) Light sensor sensitivity Level 3 Levels 1 to 5
Time elapsed before
headlights automati-
cally turn off after doors
are closed
30 secondsOff
60 seconds
90 seconds
Ambient light level at
which instrument illumi-
nation begins to dim
(meter lights etc.) Standard
-2 (darker) to
2 (brighter)
Ambient light level at
which instrument illumi-
nation begins to
brighten (meter lights
etc.) Standard
-2 (darker) to
2 (brighter)
ItemFunctionDefault settingCustomized setting
Page 666 of 704
666 6-2. Customization
4RUNNER_U
Illumination
(P. 441) Time period before
lights turn off
15 seconds7.5 seconds
30 seconds
Vehicles without a
smart key system:
Operation after the
engine switch is turned
to the “LOCK” position
Vehicles with a smart
key system: Operation
after the “ENGINE
START STOP” switch is
turned OFF On
Off
Operation when the
doors are unlocked On
Off
Vehicles with a smart
key system: Operation
when you approach the
vehicle with the elec-
tronic key on your per-
son (When the interior
light switch [ON/DOOR/
OFF] is DOOR) On
Off
Footwell lights OnOff
Overhead courtesy light On Off
Interior light control OnOff
Interior light dimmer
control while driving On
Off
ItemFunctionDefault settingCustomized
setting
Page 667 of 704
667
6-2. Customization
6
Vehicle specifications
4RUNNER_U
Outer foot
lights
(if equipped)
(
P. 441) Vehicles with a smart
key system: Operation
when you approach the
vehicle with the elec-
tronic key on your per-
son
On Off
Operation when the
doors are unlocked
using the wireless
remote control, key or
entry function On Off
Operation when the
doors are unlocked
using the door lock
switch On Off
Time period before
lights turn off 15 seconds7.5 seconds
30 seconds
Lighting control OnOff
Moon roof
( P. 105) Mechanical key linked
operation
Off
On
Mechanical key linked
operation Open and closeOpen only
Close only
Linked operation of
components when door
key is used Slide only Tilt only
Wireless remote control
linked operation (open
only) Off
On
Linked operation of
components when wire-
less remote control is
used (open only) Slide only Tilt only
ItemFunctionDefault settingCustomized
setting
Page 668 of 704
668 6-2. Customization
4RUNNER_U
Rear window
wiper and
washer
(P. 214) Wiper operates auto-
matically when washer
is operated
On Off
Drip prevention function On Off
Wiper operation interval 3 seconds 2 seconds
4 seconds
5 seconds
Time elapsed before
the rear wiper storage
function activates 3 seconds4 seconds
5 seconds
6 seconds
Power back
window
( P. 101) Vehicles without a
smart key system:
Close operation linked
to door lock operation
using a key
On
Off
Vehicles without a
smart key system:
Open operation linked
to door unlock opera-
tion using a key On
Off
Vehicles with a smart
key system: Close
operation linked to door
lock operation using the
switch On
Off
Vehicles with a smart
key system: Open oper-
ation linked to door
unlock operation using
the switch On
Off
ItemFunctionDefault settingCustomized
setting