2012 TOYOTA 4RUNNER Owners Manual

5
When trouble arises
593
5-2. Steps to take in an emergency
4RUNNER_U
(U.S.A.)
Maintenance required
reminder light
Indicates that mainte-
nance is required accord-
ing to the driven distance
on the maintenance
schedule.*
3
Illuminates for about 3 sec-
onds and then flashes for
about 15 seconds approxi-
mately 4500 miles (7200
km) after the maintenance
data has been reset. If necessary, perform main-
tenance.
Comes on and remains on if
the distance driven exceeds
5000 miles (8000 km) after
the maintenance data has
been reset.
(The indicator will not work
properly unless the mainte-
nance data has been reset.) Perform the necessary
maintenance.
Please reset the mainte-
nance data after the mainte-
nance is performed.
(
P. 509)
Warning lightWarning light/DetailsCorrection procedure

594 5-2. Steps to take in an emergency
4RUNNER_U
*1: Open door warning buzzer:The open door warning buzzer sounds to alert one or more of the
doors is not fully closed (with t he vehicle having reached a speed of
3 mph [5 km/h]).
*2: Driver’s and front passenge r’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 sec-
onds.
*3: Refer to the separate “Scheduled Maintenance Guide” or “Owner's Manual Supplement” for the maintenance interval applicable to your
vehicle.

5
When trouble arises
595
5-2. Steps to take in an emergency
4RUNNER_U
Follow the correction procedures. (vehicles with a smart key system)
After taking the specified steps to correct the suspected problem,
check that the warning light goes off.
Interior
buzzerExterior
buzzerWarning
lightWarning light/DetailsCorrection procedure
Once Smart key system warning
light
Indicates that the electronic
key is not present when the
“ENGINE START STOP”
switch is pressed Confirm the
location of the
electronic
key*.
Once3 times
Smart key system warning
light
Indicates that a door other
than the driver’s door has
been opened and closed with
the “ENGINE START STOP”
switch in any mode other
than off and the electronic
key has been taken out of
the detection area Confirm the
location of the
electronic
key.
Once3 times
Smart key system warning
light
Indicates that the driver’s
door has been opened and
closed with the shift lever 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 Turn the
“ENGINE
START
STOP” switch
off or confirm
the location of
the electronic
key.

596 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

5
When trouble arises
597
5-2. Steps to take in an emergency
4RUNNER_U
■
SRS warning light
This warning light system monitors the airbag sensor assembly, front airbag
sensors, side and curtain shield airbag sensors, curtain shield airbag sen-
sors, floor sensor, driver's seat belt buckle switch, front passenger occupant
classification system, SRS airbag on-off indicator, roll sensing of curtain
shield airbags off indicator, front passenger's seat belt buckle switch, seat
belt pretensioner assemblies, inflators, interconnecting wiring and power
sources. ( P. 121)
■ Key reminder buzzer (vehicl es 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
detection 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 passen-
ger, and the warning light may not operate properly.
■ If the malfunction indicator lamp 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.

598 5-2. Steps to take in an emergency
4RUNNER_U
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such
as natural air leaks and tire inflation pressure changes caused by tem-
perature. In this case, adjusting the tire inflation pressure will turn off the
warning light (after a few minutes).
■When a tire is replaced with a spare tire
The spare tire is not equipped with a tire pressure warning valve and
transmitter. If a tire goes flat, the tire pressure warning light 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 inflation
pressure. The tire pressure warning light will go off after a few minutes.

5
When trouble arises
599
5-2. Steps to take in an emergency
4RUNNER_U
■If the tire pressure warning system is not functioning
The tire pressure warning system will be disabled in the following condi-
tions:
(When the condition be
comes normal, the system will work properly.)
●If tires not equipped with tire pressure warning valves and transmit-
ters are used
●If the ID code on the tire pressure warning valves and transmitters is
not registered in the tire pressure 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 following condi-
tions:
(When the condition be comes normal, the system will work properly.)
●If electronic devices or facilities 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
some types of tires.)
●If tire chains are used
■If the tire pressure warning light frequently comes on after blinking
for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1
minute when the “ENGINE START STOP ” switch (vehicles with a smart
key system) or the engine switch (veh icles without a smart key system)
is turned on, have it che cked by your Toyota dealer.
■Customization that can be co nfigured at Toyota dealer
The vehicle speed linked seat belt reminder buzzer can be disabled.
(Customizable features  P. 660) However, Toyota recommends that the
seat belt reminder buzzer be operational to alert the driver and front passen-
ger when seat belts are not fastened.

600 5-2. Steps to take in an emergency
4RUNNER_U
CAUTION
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could
cause a loss of vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire
inflation pressure immediately.
●If the tire pressure warning light comes on even after tire inflation pres-
sure adjustment, it is pr obable that you have a flat tire. Check the tires.
If a tire is flat, change it with th e spare tire and have the flat tire
repaired by the nearest Toyota dealer.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate,
you could lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning syste m may not activate immediately.