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3504-5. Using the driving support systems
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Q Air conditioning system operation while the engine is stopped by the
Stop & Start system
Vehicles with an automati c air conditioning system: When the air conditioning
is in automatic mode and the engine is stopped by the Stop & Start system,
the fan may operate at a low speed in order to prevent the temperature in the
cabin from increasing or decreasing or may be stopped.
To prioritize air conditioning system performance when the vehicle is stopped,
disable the Stop & Start system by pressing the Stop & Start cancel switch.
O If the windshield is fogged up
Turn on. (P. 443)
If the windshield fogs up frequently, press the Stop & Start cancel switch to
disable the Stop & Start system.
O If an odor is emitted from the air conditioning system
• Vehicles with manual air conditioning system:
If the idling stop time setting is set to “Extended” change it to “Standard”.
If an odor is emitted when the idling stop time setting is set to “Standard”,
press the Stop & Start cancel switch to deactivate the Stop & Start sys-
tem.
• Vehicles with automatic air conditioning system:
Press the Stop & Start cancel switch to deactivate the Stop & Start sys-
tem.
Q Changing the idling stop time with the air conditioning system on
The length of time the Stop & Start system will operate when the air condition-
ing system is on can be changed in of the multi-information display
( P. 646). (The length of time the Stop & Start system will operate when the
air conditioning system is off cannot be changed.)
Q Displaying the Stop & Start system status
 P. 141

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Q Multi-information display messages
If the following situations, and a message may be displayed on the
multi-information display.
O When the engine cannot be stopped by the Stop & Start system
MessageDetails/Actions
“Press Brake
Harder to
Activate”
Vehicles with automatic transmission:
The brake pedal is not depressed enough.
 If the brake pedal is depressed further, the
system will operate.
“Non-Dedi-
cated Battery”
A non-dedicated battery for the Stop & Start sys-
tem may have been installed.
 The Stop & Start system does not operate.
Have the vehicle inspected by any autho-
rized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
“Battery
Charging”
• The battery charge amount may be low.
 Engine stop is temporarily prohibited to
prioritize charging of the battery, but if the
engine is operated for a short while,
engine stop is allowed.
• A refresh charge may be occurring, such as
when the battery is undergoing a periodic
recharge, for a while after the battery terminals
have been disconnected and reconnected, for
a while after the battery has been replaced,
etc.
 After a refresh charge for up to an hour
completes, the system can be operated.
• The engine may have been started with the
hood opened.
 Close the hood, turn the engine switch to
the “LOCK” position (vehicles without
smart entry & start system) or off (vehicles
with smart entry & start system), wait 30
seconds or more, and then start the
engine.
If the message is displayed continuously (60
minutes or more), the battery may have deterio-
rated. Contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable
repairer.

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Q When the buzzer sounds (vehicles with automatic transmission)
If the driver’s door is opened when the engine is stopped by the Stop & Start
system and the shift lever is in D, a buzzer will sound and the Stop & Start
system indicator will flash. To stop the buzzer, close the driver’s door.
Q The Stop & Start system protection function
O When the volume of the audio system is excessively high, sound output
from the audio system may suddenly be cut off in order to reduce battery
consumption. To prevent the audio system from being cut off, keep the vol-
ume of audio system at a moderate level. If the audio system has been cut
off, turn the engine switch to the “LOCK” position*1 or off*2, wait for 3 sec-
onds or more and then turn it to the “ACC” position*1 or ACCESSORY
mode*2 or the “ON” position*1 or IGNITION ON mode*2 to re-enable the
audio system.
O The audio system may not be activated if the battery terminals are discon-
nected and then reconnected. If this occurs, turn the engine switch to the
“LOCK” position*1 or off*2 and then repeat the following operation twice to
activate the audio system normally.
• Turn the engine switch to the “ON” position*1 or IGNITION ON mode*2
and then to the “LOCK” position*1 or off*2.
*1: Vehicles without smart entry & start system
*2: Vehicles with smart entry & start system
Q Replacing the battery
 P. 607
Q If the Stop & Start cancel indicator flashes continuously
The system may be malfunctioning. Have the vehicle inspected by any autho-
rized Toyota retailer or Toyota authorized repairer, or any reliable repairer.
Q If “Stop & Start System Malfunction Visit Your Dealer” is displayed on
the multi-information display
The system may be malfunctioning. Have the vehicle inspected by any autho-
rized Toyota retailer or Toyota authorized repairer, or any reliable repairer.

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If the vehicle gets stuck in mud, dirt or snow, the TRC/A-TRC systems
may reduce power from the engine to the wheels. Pressing to
turn the system off may make it easier for you to rock the vehicle in
order to free it.
Vehicles without AUTO LSD system (without multi-information dis-
play)
To turn the TRC/A-TRC systems
off, quickly press and release
.
The “TRC OFF” indicator light will
come on.
Press again to turn the system
back on.
Vehicles without AUTO LSD system (with multi-information display)
To turn the TRC/A-TRC systems
off, quickly press and release
.
“TRC turned off” will be shown on
the multi-information display.
Press again to turn the system
back on.
Disabling the TRC/A-TRC systems

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Vehicles with AUTO LSD system
To turn the TRC/A-TRC systems
off, quickly press and release
. (The AUTO LSD system
turns on.*1)
The “AUTO LSD” and VSC OFF
indicators will come on.*2
Press again to turn the system
back on.
*1: Pre Runner and in 2WD mode on 4WD models only
*2: On vehicles with pre-collision system, pre-collision brake assist and pre-
collision braking will also be disabled until the vehicle reaches a certain
speed. The PCS warning light will come on and the message will be
shown on the multi-information display. (if equipped) ( P. 283)

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QTurning off TRC, A-TRC, VSC and Trailer Sway Control systems
Vehicles without multi-information display
To turn the TRC, A-TRC, VSC and Trailer Sway Control systems off, press
and hold for more than 3 seconds while the vehicle is stopped.
The “TRC OFF” indicator light and VSC OFF indicator light will come on.*
Press again to turn the system back on.
Vehicles with multi-information display
To turn the TRC, A-TRC, VSC and Trailer Sway Control systems off, press
and hold for more than 3 seconds while the vehicle is stopped.
The VSC OFF indicator light will come on and the “TRC turned off” will be
shown on the multi-information display.*
Press again to turn the system back on.
*: On vehicles with pre-collision system, pre-collision brake assist and pre-
collision braking will also be disabled. The PCS warning light will come on
and the message will be shown on the multi-information display. ( P. 283)
Q When “TRC OFF” indicator light comes on or the message is displayed
on the multi-information display sh owing that TRC/A-TRC has been dis-
abled even if has not been pressed
TRC, A-TRC and downhill assist control is temporary deactivated. If the indi-
cator light continues to remain on or the information continues to show, con-
tact any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.
Q Sounds and vibrations caused by the ABS, brake assist, VSC, Trailer
Sway Control, TRC, A-TRC and the hill-start assist control systems
O A sound may be heard from the engine compartment when the brake pedal
is depressed repeatedly, when the engine is started or just after the vehicle
begins to move. This sound does not indicate that a malfunction has
occurred in any of these systems.
O Any of the following conditions may occur when the above systems are
operating. None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard also after the vehicle comes to a stop.
• The brake pedal may pulsate slightly after the ABS is activated.
• The brake pedal may move down slightly after the ABS is activated.

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QOperating tips (vehicles with automatic transmission)
The system will operate when the shift lever is in a position other than P, how-
ever to make effective use of the system it is recommended to select a lower
shift range.
Q The system will not operate when
O The transfer mode is in H2.
O The rear differential is locked. (if equipped)
Q If the downhill assist control system indicator flashes
O In the following situations, the indicator flashes and the system will not oper-
ate:
• The transfer mode is not in L4 or H4.
• The rear differential is locked. (if equipped)
• The shift lever is in P. (vehicles with automatic transmission)
• The accelerator or brake pedal is depressed.
• The vehicle speed exceeds approximately 30 km/h (18 mph).
• The brake system overheats.
O In the following situations, the indicator flashes to alert the driver, but the
system will operate:
• The shift lever is in N. (vehicles with automatic transmission)
• The clutch pedal is depressed. (vehicles with manual transmission)
• The “DAC” switch is turned off while the system is operating.
The system will gradually ceases operat ion. The indicator will flash during
operation, and then go off when the system is fully off.
Q When the downhill assist control system is operated continuously
This may cause the brake actuator to overheat. In this case, the downhill
assist control system will stop operating, a buzzer will sound and the downhill
assist control system indicator will start flashing, and “TRC turned off” will be
shown on the multi-information display. Refrain from using the system until
the downhill assist control system indicator stays on and the message goes
off. (The vehicle can be driven normally during this time.)
Q Sounds and vibrations caused by the downhill assist control system
O A sound may be heard from the engine compartment when the engine is
started or just after the vehicle begins to move. This sound does not indicate
that a malfunction has occurred in downhill assist control system.
O Either of the following conditions may occur when the downhill assist control
system is operating. None of these are indicators that a malfunction has
occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.

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QIf the engine is turned off and restarted
The AUTO LSD system and the indicators are automatically turned off.
Q Reactivation of the VSC system linked to vehicle speed
When the AUTO LSD system is turned on, the VSC and TRC systems will
turn on automatically if vehicle speed increase.
Q If the brake system overheats
The system will cease operation and a buzzer will alert the driver. At this time,
the “AUTO LSD” indicator will flash and “TRC turned off” will be shown on the
multi-information display. Stop the vehicle in a safe place. (There is no prob-
lem with continuing normal driving.) The system will be automatically restored
after a short time.
WARNING
Q To avoid an accident
Failure to do so, a much greater steer ing effort and more careful cornering
control will be required.
O Do not use the AUTO LSD system in conditions other than when one of
the drive wheels spinning occurs in a ditch or rough surface.
O Do not drive with the AUTO LSD system continuously turned on.
NOTICE
QActivating while driving
Do not activate the AUTO LSD system if the wheel is slipping. Stop the slip-
ping or spinning before activating.

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DPF (Diesel Particulate Filter) system
: If equipped
When the deposit collected by the filter reaches a predetermined
amount, it is automatically regenerated.
WARNING
Q During regeneration
Observe the following precautions.
Failure to do so may result in serious injury such as burns caused by the hot
exhaust pipe and exhaust gases, or may cause a fire.
O Do not carry out regeneration when the vehicle is in an enclosed area,
such as a garage.
O Do not touch the exhaust pipe and exhaust gases during regeneration.
NOTICE
QTo prevent the DPF system from failing
O Do not drive for long periods of time while the DPF system warning mes- sage “DPF full Visit your dealer” appears on the multi-information displayand a buzzer sounds (malfunction indicator lamp comes on)
O Do not use fuel other than the specified type
O Do not use engine oil other than the recommended type
O Do not modify the exhaust pipe
ODo not stop the vehicle where flamma-
ble materials, such as dry grass, are
near the exhaust pipe.
O Make sure that there are no people
near the exhaust pipe.

3704-5. Using the driving support systems
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XRegeneration
O During normal driving, the filter is automatically regenerated
every several hundred kilometers*. During regeneration, the DPF
system warning message “DPF regeneration in progress” is dis-
played on the multi-information display.
O When the amount of accumulated deposit reaches a certain
level, regeneration can be performed. ( P. 371)
*: Differs in accordance with weather, driving conditions, etc.
XSystem characteristics
The DPF system has the following characteristics:
O Idle speed increases during regeneration
O The smell of the exhaust gas differs from that of a conventional
diesel vehicle
O White smoke may be emitted from the exhaust pipe during
regeneration. However, this does not indicate a malfunction.
The amount of accumulated deposit in the DPF system can be con-
firmed on the multi-information display.
The DPF deposition status appears when the DPF system switch is
pressed or the warning massage is displayed. Use the displayed DPF
deposition as a reference.
Low
Full
DPF deposition status
1
2