2012 TOYOTA 4RUNNER engine

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.

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.

5
When trouble arises
603
5-2. Steps to take in an emergency
4RUNNER_U
If you have a flat tire
Remove the flat tire and replace it with the spare tire provided.
■Before jacking up the vehicle
●Stop the vehicle on a hard, flat surface.
● Set the parking brake.
● Shift the shift lever to P.
● Stop the engine.
● Turn on the emergency flashers.
■ Location of the spare tire, jack and tools
CTH52AS050Spare tire
Jack
Tool bagTool bag

5
When trouble arises
613
5-2. Steps to take in an emergency
4RUNNER_U
CAUTION
■Using the tire jack
Improper use of the tire jack may cause the vehicle to suddenly fall off the
jack, leading to death or serious injury.
●
Do not use the tire jack for any pu
rpose other than replacing tires or
installing and removing tire chains.
●Only use the tire jack that comes wi th this vehicle for replacing a flat
tire.
Do not use it on other vehicles, and do not use other tire jacks for
replacing tires on this vehicle.
●Always check that the tire jack is securely set to the jack point.
●Do not put any part of your body under the vehicle while it is supported
by the jack.
●Do not start or run the engine while your vehicle is supported by the
jack.
●Do not raise the vehicle while someone is inside.
●When raising the vehicle, do not put an object on or under the jack.
●Do not raise the vehicle to a hei ght greater than that required to
replace the tire.
●Use a jack stand if it is necessary to get under the vehicle.
Vehicles with Automatic running boards
● Observe the following precautions. Failure to do so may result in serious
injury:
•
When jacking up the vehicle, always turn the Automatic running
boards switch off.
•When jacking up the vehicle, do not use an Automatic running
board as a jack point. The Automatic running board may break,
causing injuries.
Take particular care when lowering the vehicle to ensure that no one
working on or near the vehicle may be injured.

616
5-2. Steps to take in an emergency
4RUNNER_U
If the engine will not star t
If the engine will not start even though correct starting procedures
are being followed ( P. 170, 173), consider each of the following
points:
■ The engine will not start even though the starter motor
operates normally.
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 proce-
dures. ( P. 170, 173)
● There may be a malfunction in the engine immobilizer system.
( P. 1 1 3 )
■ The starter motor turns over slowly, the interior lights and
headlights are dim, or the horn does not sound or sounds at
a low volume.
One of the following may be the cause of the problem:
●The battery may be discharged. ( P. 623)
● The battery terminal connec tions may be loose or corroded.
■ The starter motor does not turn over.
The engine starting system may be malfunctioning due to an
electrical problem such as an open circuit or a blown fuse. How-
ever, an interim measure is available to start the engine.
(
P. 617)

5
When trouble arises
617
5-2. Steps to take in an emergency
4RUNNER_U
Emergency start function (vehicles with a smart key system)
When the engine does not start, the following steps can be used as
an interim measure to start the engine if the “ENGINE START STOP”
switch is functioning normally: Set the parking brake.
Shift the shift lever to P.
Turn the “ENGINE START STOP” switch to ACCESSORY
mode.
Press and hold the “ENGINE START STOP” switch for about
15 seconds while depressing the brake pedal firmly.
Even if the engine can be start ed 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
headlights do not turn on, or the horn does not sound.
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. 623)
● There may be a malfunction in the steering lock system. (vehi-
cles with a smart key system)
Contact your Toyota dealer if the problem cannot be repaired, or if
repair procedures are unknown.
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