
2364-5. Using the driving support systems
Through control state “Warning
phase 1” and “Warning phase
2”, the system determines if the
driver is aware and responsive
while outputting a warning and
controlling the vehicle speed. If
the system determines the
driver is not responsive, it will
operate in control state “Decel-
eration stop phase” and “Stop
hold phase” and decelerate and
stop the vehicle. It will then
operate continuously in “Stop
hold phase”.
■Operating conditions
This system opera tes when all of
the following cond itions are met:
●When the LTA is on
●When the vehicle speed is
approximately 30 mph (50 km/h)
or more
■Operation cancelation condi-
tions
In the following si tuations, system
operation will be canceled:
●When LTA control has been can-
celed (the LTA switch has been
pressed, etc.)
●When the dynamic radar cruise
control has been canceled
●When driver operations are
detected (the steering wheel is
held, the brake pedal, accelerator
pedal, parking brake, hazard light
switch, or turn sig nal lever is oper-
ated)
●When the driving assist switch is
pressed while in the stop and hold
phase
●When the engine switch has been
turned from ON to off
●Situations in whic h some or all of
the functions of the system cannot operate:
P. 1 9 7
■LTA control when operation is
canceled
When emergency driving stop sys-
tem operation is canceled, LTA con-
trol may also be canceled.
If driving operations are not
detected after the hands off
steering wheel warning oper-
ates, a buzzer will sound inter-
mittently and a message will be
displayed to warn the driver, and
the system will judge if the driver
is responsive or not. If driving
operations, such as holding the
steering wheel, are not per-
formed within a certain amount
of time, the system will enter
warning phase 2.
After entering warning phase 2,
a buzzer will sound in short
intervals and a message will be
displayed to warn the driver, and
the vehicle will slowly deceler-
ate. If driving operations, such
as holding the steering wheel,
are not performed within a cer-
tain amount of time, the system
will determine that the driver is
not responsive and enter the
deceleration stop phase.
The audio system will be muted
until the driver becomes respon-
sive.
When the vehicle is decelerating,
Warning phase 1
Warning phase 2

2374-5. Using the driving support systems
4
Driving
the brake lights may illuminate,
depending on the road conditions,
etc.
After entering the deceleration
stop phase, a buzzer will sound
continuously and a message will
be displayed to warn the driver,
and the vehicle will slowly decel-
erate and stop. After the vehicle
stops, the system will enter the
stop and hold phase.
After the vehicle is stopped, the
parking brake will be applied
automatically. After entering the
stop and hold phase, the buzzer
will continue sounding continu-
ously and the emergency flash-
ers (hazard lights) will flash to
warn other drivers of the emer-
gency.
■Restricted functions after the
operation is canceled
After shifting to the deceleration
stop phase, the following functions
will not be available until the engine
is re-started even though the emer-
gency driving stop system is can-
celed:
●LTA
■Stopping the engine
While driving with the D shift
position selected, depress the
brake pedal and stop the vehi-
cle. The engine will stop auto-
matically.
When the engine stops, the Stop &
Start indicator will illuminate.
■Restarting the engine
Release the brake pedal. The
engine will start automatically.
When the engine starts, the Stop &
Start indicator will turn off.
Deceleration stop phase
Stop hold phase
Stop & Star t system
The Stop & Start system
stops and starts the engine
according to brake pedal or
shift lever operation when
the vehicle is stopped, such
as at a stoplight, intersec-
tion, etc., in order to
improve fuel economy and
reduce noise pollution
caused by the engine idling.
Stop & Start system oper-
ation

2424-5. Using the driving support systems
& Start system “In Preparation”
• The brake pedal has been depressed further or pumped.
The system will be enabled after
the engine runs and the brake
booster vacuum reaches a predeter-
mined level.
“For Climate Control”
• The air conditioning system has been turned on or is being used.
• The windshield defogger has been turned on.
“Battery Charging”
• The battery charge may be low.
The system will be enabled after
the engine runs to sufficiently
charge the battery.
■When the buzzer sounds
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 s ound and the Stop
& Start system indicator will flash. To
stop the buzzer, close the driver’s
door.
■The Stop & Start system protec-
tion function
●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 volume of
audio system at a moderate level.
If the audio system has been cut
off, turn the engine switch off, wait
for 3 seconds or more and then
turn it to ACC or ON to re-enable
the audio system.
●The audio system may not be acti-
vated if the battery terminals are
disconnected an d then recon-
nected. If this o ccurs, turn the engine switch off and then repeat
the following oper
ation twice to
activate the audio system nor-
mally.
• Turn the engine switch to ON and then to OFF.
■Replacing the battery
P.421
■If the malfunction indicator
lamp comes on
The system may be malfunctioning.
Have the vehicle inspected by your
Toyota dealer.
■If “Stop & Start System Mal-
function Visit Your Dealer” is
displayed on the multi-informa-
tion display
The system may be malfunctioning.
Have the vehicle inspected by your
Toyota dealer.
WARNING
■When the Stop & Start system
is operating
Make sure to disable the Stop &
Start system while the vehicle is in
a poorly ventilated area. If not dis-
abled, the engine may be auto-
matically restarted unexpectedly,
causing exhaust gases to collect
and enter the vehicle, possibly
resulting in dea th or a serious
health hazard.
●Do not leave the vehicle while
the engine is stopped by the
Stop & Start system (while the
Stop & Start indicator is on). An
accident may occur due to the
automatic engine start function.
●Depress the brake pedal and
apply the parking brake when
necessary while the engine is
stopped by the Stop & Start sys-
tem (while the Stop & Start indi-
cator is on).

2624-5. Using the driving support systems
●If objects draw too close to the
sensor.
●When a pedestrian is wearing
clothing that does not reflect ultra-
sonic waves (ex. skirts with gath-
ers or frills).
●When objects that are not perpen-
dicular to the ground, not perpen-
dicular to the v ehicle traveling
direction, uneven, or waving are in
the detection range.
●Strong wind is blowing
●When driving in inclement weather
such as fog, snow or a sandstorm
●When an object that cannot be
detected is betw een the vehicle
and a detected object
●If an object such as a vehicle,
motorcycle, bicycle or pedestrian
cuts in front of the vehicle or runs
out from the side of the vehicle
●If the orientation of a sensor has
been changed due t o a collision or
other impact
●When equipment that may
obstruct a sensor is installed, such
as a towing eyelet, bumper pro-
tector (an additi onal trim strip,
etc.), bicycle carrier, or snow plow
●If the front of the vehicle is raised
or lowered due to the carried load
●If the vehicle cannot be driven in a
stable manner, such as when the
vehicle has been in an accident or
is malfunctioning
●When a tire chains or compact
spare tire is used
■Situations in which the system
may operate even if there is no
possibility of a collision
In some situations, such as the fol-
lowing, the system may operate
even though there is no possibility of
a collision.
●When driving on a narrow road
●When driving towa rd a banner,
flag, low-hanging branch or boom
barrier (such as those used at rail-
road crossings, toll gates and
parking lots)
●When there is a ru t or hole in the
surface of the road
●When driving on a metal cover
(grating), such as those used for
drainage ditches
●When driving up or down a steep
slope
●If a sensor is hit by a large amount
of water, such as when driving on
a flooded road
●There is dirt, snow, water drops or
ice on a sensor. (Cleaning the
sensors will resolve this problem.)
●A sensor is coated with a sheet of
spray or heavy rain
●When driving in inclement weather
such as fog, snow or a sandstorm
●When strong winds are blowing
●When vehicle horns, vehicle
detectors, motorcycle engines, air
brakes of large vehicles, the clear-
ance sonar of ot her vehicles or
other devices which produce ultra-
sonic waves are near the vehicle
●If the front of the v ehicle is raised
or lowered due to the carried load

2654-5. Using the driving support systems
4
Driving
*: If equipped
The system can detect the fol-
lowing as detectable objects.
(Detectable objects differ
depending on the function.)
Static Objects Front and Rear
of the vehicle ( P.270)
Moving Vehicles Rear of the
Vehicle ( P.272)
PKSB (Parking Sup-
por t Brake)*
The PKSB (Parking Support
Brake) consists of the fol-
lowing functions that oper-
ate when driving at a low
speed or backing up, such
as when parking. When the
system determines that the
possibility of a collision
with a detected object is
high, a warning operates to
urge the driver to take eva-
sive action. If the system
determines that the possi-
bility of a collision with a
detected object is extremely
high, the brakes are auto-
matically applied to help
avoid the collision or help
reduce the impact of the col-
lision.
PKSB (Parking Support
Brake) system
WARNING
■Cautions regarding the use of
the system
Do not overly rely on the system,
as doing so may lead to an acci-
dent.
Always drive while checking the
safety of the surroundings of the
vehicle.
Depending on the vehicle and
road conditions, weather, etc., the
system may n ot operate.
The detection cap abilities of sen-
sors and radars are limited.
Always drive while checking the
safety of the surroundings of the
vehicle.
●The driver is solely responsible
for safe driving. Always drive
carefully, taking care to observe
your surroundings. The PKSB
(Parking Support Brake) system
is designed to provide support
to lessen the severity of colli-
sions. However, it may not oper-
ate in some situations.
●The PKSB (Parki ng Support
Brake) system is not designed
to stop the vehicle completely.
Additionally, even if the system
has stopped the vehicle, it is
necessary to depress the brake
pedal immediately as brake
control will be canceled after
approximately 2 seconds.
●It is extremely dangerous to
check the system operations by
intentionally driving the vehicle
into the direction of a wall, etc.
Never attempt such actions.

2664-5. Using the driving support systems
The PKSB (Parking Support
Brake) system can be
enabled/disabled on of the
multi-information display.
(P.449)
When the PKSB (Parking Sup-
port Brake) function is off, the
driving assist information indica-
tor ( P.74) will illuminate.
When turned OFF (disabled), the
PKSB (Parking Supp ort Brake) will
be disabled and will not be enabled
until the setting is changed to ON
again in multi-information display.
(The function will no t be reenabled
by operating the engine switch.)
If the engine output restriction con-
trol or brake control operates, a
buzzer will sound and a message
will be displayed on the multi-infor-
WARNING
■When to disable the PKSB
(Parking Support Brake) sys-
tem
In the following situations, disable
the PKSB (Parking Support
Brake) as the system may oper-
ate even though there is no possi-
bility of a collision.
●When inspecting the vehicle
using a chassis roller, chassis
dynamo or free roller
●When loading the vehicle onto a
boat, truck or other transport
vessel
●If the suspension has been
modified or tires of a size other
than specified are installed
●If the front of the vehicle is
raised or lowered due to the
carried load
●When equipment that may
obstruct a sensor is installed,
such as a towing eyelet, bumper
protector (an additional trim
strip, etc.), bicycle carrier, or
snow plow
●When using automatic car
washing devices
●If the vehicle cannot be driven in
a stable manner, such as when
the vehicle has been in an acci-
dent or is malfunctioning
●When the vehicle is driven in a
sporty manner or off-road
●When the tires are not properly
inflated
●When the tires are very worn
●When a tire chains or compact
spare tire is used
●When your vehicle is towing a
trailer or during emergency tow-
ing
■Precautions for the suspen-
sion
Do not modify the suspension of
the vehicle. If the height or tilt of
the vehicle is c hanged, the sen-
sors may not be able to detect
detectable objects and the system
may not operate correctly, possi-
bly leading to an accident.
Enabling/Disabling the
PKSB (Parking Support
Brake)
Displays and buzzers for
engine output restriction
control and brake control

2674-5. Using the driving support systems
4
Driving
mation display, to alert the driver.
Depending on the situation, engine
output restriction control will oper-
ate to either limit acceleration or
restrict output as much as possible.
Engine output restriction con-
trol is operating (acceleration
restriction)
Acceleration greater than a certain
amount is restricted by the system.
Multi-information display: “Object
Detected Acceleration Reduced”
Driving assist information indicator:
Not illuminated
Buzzer: Does not sound
Engine output restriction con-
trol is operating (output
restricted as much as possi-
ble)
The system has determined that
stronger-than-normal brake opera-
tion is necessary. Multi-information
display: “BRAKE!”
Driving assist information indicator:
Not illuminated
Buzzer: Short beep
Brake control is operating
The system determined that emer-
gency braking is necessary.
Multi-information display: “BRAKE!”
Driving assist information indicator:
Not illuminated
Buzzer: Short beep
Vehicle stopped by system
operation
The vehicle has been stopped by
brake control operation.
Multi-information di splay: “Switch to
Brake” (If the acce lerator pedal is
not depressed, “Press Brake Pedal”
will be displayed.)
Driving assist information indicator:
Illuminated
Buzzer: Sounds repeatedly
If the PKSB (Parking Support Brake) determines that a collision with
a detected object is possible, the engine output will be restri cted to
restrain any increase in the vehicle speed. (Engine output restriction
control: See figure 2.)
Additionally, if the accelerator pedal continues to be depresse d, the
brakes will be applied automatica lly to reduce the vehicle speed.
(Brake control: See figure 3.)
Figure 1 When the PKSB (Parking Support Brake) is not operating
System overview

2694-5. Using the driving support systems
4
Driving
Engine output
Braking force
Time
Engine output restriction control begins operating (System deter-
mines that possibility of collision with detected object is high)
Brake control begins operating (S ystem determines that possibil-
ity of collision with detecte d object is extremely high)
■If the PKSB (Parking Support
Brake) has operated
If the vehicle is stopped due to oper-
ation of the PKSB (P arking Support
Brake), the PKSB (P arking Support
Brake) will be disabled and the driv-
ing assist informa tion indicator will
illuminate. If the PKSB (Parking
Support Brake) op erates unneces-
sarily, brake control can be canceled
by depressing the brake pedal or
waiting for approximately 2 sec-
onds for it to automatically be can-
celed. Then, the vehicle can be
operated by depress ing the acceler-
ator pedal.
■Re-enabling the PKSB (Parking
Support Brake) system
To re-enable the PKSB (Parking
Support Brake) when it has been
disabled due to operation of the
PKSB (Parking Support Brake),
either enable the system again (
P.266), or turn the engine switch
off and then back to ON.
Additionally, if a ny of the following
conditions are m et, the system will
be re-enabled automatically and the
driving assist inf ormation indicator
will turn off:
●The P shift position is selected
●The object is no longer detected in
the traveling direction of the vehi-
cle
●The traveling direction of the vehi-
cle changes