3305-2. Driving procedures
enabled, the system will turn off and the
brake hold standby indicator light will go off. In addition, if any of the conditions
are detected while th e system is holding
the brake, a warning buzzer will sound and a message wi ll be shown on the
multi-information display. The parking
brake will then be set automatically.
■Brake hold function
●If the brake pedal is left released for a
period of about 3 minutes after the system has started ho lding the brake,
the parking brake will be set automati -
cally. In this case, a warning buzzer sounds and a message is shown on
the multi-information display.
●To turn the system o ff while the sys-
tem is holding the brake, firmly
depress the brak e pedal and press the button again.
●The brake hold func tion may not hold the vehicle when the vehicle is on a
steep incline. In this situation, it may
be necessary for the driver to apply the brakes. A warning buzzer will
sound and the multi -information dis-
play will inform the dr iver of this situa- tion. If a warning message is shown
on the multi-informa tion display, read
the message and follow the instruc - tions.
■When the parking brake is set auto -
matically while the system is hold -
ing the brakes
Perform any of the following operations
to release the parking brake:
●Depress the accelerator pedal. (The
parking brake will not be released
automatically if the seat belt is not fas - tened.)
●Operate the parking brake switch with
the brake pedal depressed.
Make sure that the parking brake indica -
tor light goes off. ( →P.326)
■When an inspection at any autho-
rized Toyota retailer or Toyota authorized repairer, or any reliable
repairer is necessary
When the brake hold standby indicator (green) does not illuminate even when
the brake hold switch is pressed with the
brake hold system ope rating conditions met, the system may b e malfunctioning.
Have the vehicle i nspected at any
authorized Toyota r etailer or Toyota authorized repairer, or any reliable
repairer.
■If “Brake Hold Malfunction Press
Brake to Deactivate Visit Your Dealer” or “Brake Hold Malfunction
Visit Your Dealer” is displayed on
the multi-information display
The system may be malfunctioning.
Have the vehicle inspected by any
authorized Toyota r etailer or Toyota authorized repairer, or any reliable
repairer.
■Warning messages and buzzers
Warning messages and buzzers are used to indicate a system malfunction or
to inform the driver of the need for cau -
tion. If a warning message is shown on the multi-information display, read the
message and follow the instructions.
■If the brake hold operated indicator
flashes
→ P.574
WARNING
■When the vehicle is on a steep
incline
When using the brake hold system on a steep incline, exercise caution. The
brake hold function may not hold the
vehicle in such a situation.
■When stopped on a slippery road
The system cannot stop the vehicle when the gripping ab ility of the tires
has been exceeded. Do not use the
system when stopped on a slippery road.
355
5
5-5. Using the driving support systems
Driving
*: If equipped
The system can detect the follow -
ing:
Vehicles
Bicyclists
Pedestrians
■Pre-collision warning
When the system determines that
the possibility of a frontal collision is
high, a buzzer will sound and a
warning message wil l be displayed
on the multi-information display to
urge the driver to take evasive
action.
■Pre-collision brake assist
When the system determines that
the possibility of a frontal collision is
high, the system applies greater
braking force in relation to how
strongly the brake pedal is
depressed.
■Pre-collision braking
If the system determines that the
possibility of a fr ontal collision is
extremely high, the brakes are
automatically applied to help avoid
the collision or reduce the impact of
the collision.
PCS (Pre-Collision Sys-
tem)*
The pre-collision system uses
a radar sensor and front cam -
era to detect objects ( →P.355)
in front of the vehicle. When
the system determines that the
possibility of a fr ontal collision
with an object is high, a warn -
ing operates to urge the driver
to take evasive action and the
potential brake pressure is
increased to help the driver
avoid the collision. If the sys -
tem determines that the possi -
bility of a fronta l collision with
an object is extremely high,
the brakes are automatically
applied to help avoid the colli -
sion or help reduce the impact
of the collision.
The pre-collision system can be
disabled/enabled and the warn -
ing timing can be changed.
( →P.357)
Detectable objects
System functions
361
5
5-5. Using the driving support systems
Driving
• If a vehicle ahead has extremely high
ground clearance
• If a vehicle ahead is carrying a load
which protrudes pa st its rear bumper • If a vehicle ahead is irregularly
shaped, such as a tractor or side car
• If a vehicle ahead is a child sized bicy - cle, a bicycle that is carrying a large
load, a bicycle ridden by more than
one person, or a uniquely shaped bicycle (bicycle with a child seat, tan-
dem bicycle, etc.)
• If a pedestrian/or the riding height of a bicyclist ahead is shorter than approx -
imately 1 m (3.2 ft.) or taller than
approximately 2 m (6.5 ft.) • If a pedestrian/bi cyclist is wearing
oversized clothing (a rain coat, long
skirt, etc.), maki ng their silhouette obscure
• If a pedestrian is bending forward or
squatting or bicyclist is bending for - ward
• If a pedestrian/bicy clist is moving fast
• If a pedestrian is pushing a stroller, wheelchair, bicycle or other vehicle
• When driving in inclement weather
such as heavy rain , fog, snow or a
sandstorm • When driving through steam or smoke
• When the surrounding area is dim,
such as at dawn or dusk, or while at night or in a tunnel, making a detect -
able object appear to be nearly the
same color as its surroundings
• When driving in a place where the sur - rounding brightness changes sud -
denly, such as at the entrance or exit
of a tunnel • After the hybrid system has started
the vehicle has not been driven for a
certain amount of time • While making a left/right turn and for a
few seconds after making a left/right
turn • While driving on a curve and for a few
seconds after driving on a curve
• If your vehicle is skidding • If the front of the v ehicle is raised or
lowered
• If the wheels are misaligned
• If a wiper blade is blocking the front
camera • The vehicle is being driven at
extremely high speeds
• When driving on a hill • If the radar sensor or front camera is
misaligned
●In some situations such as the follow -
ing, sufficient braking force may not
be obtained, preventing the system from performing properly:
• If the braking functions cannot operate
to their full extent, such as when the brake parts are extremely cold,
extremely hot, or wet
• If the vehicle is not properly main - tained (brakes or ti res are excessively
worn, improper tire i nflation pressure,
etc.)
• When the vehicle is being driven on a gravel road or other slippery surface
■If VSC is disabled
●If VSC is disabled (→P.439), the pre- collision brake assist and pre-collision
braking functions are also disabled.
3805-5. Using the driving support systems
When a vehicle is de tected running ahead of you, the system automatically deceler-
ates your vehicle. When a great er reduction in vehicle speed is necessary, the sys-
tem applies the brakes (the stop lights will come on at this time). The system will
respond to changes in the speed of the vehicle ahead in order to maintain the vehi-
cle-to-vehicle distance set by the driver. Approach warning war ns you when the sys-
tem cannot decelerate sufficiently to prevent your vehicle from closing in on the
vehicle ahead.
When the vehicle ahead of you stops, your vehicle will also sto p (vehicle is stopped
by system control). After the veh icle ahead starts off, pressing the “+RES” switch or
depressing the accelerator pedal (start-off operation) will res ume follow-up cruising.
If the start-off operation is not performed, system control continues to keep your
vehicle stopped.
When the turn signal lever is operated and your vehicle moves t o an overtaking lane
while driving at 50 mph (80 km/h) or more, the vehicle will acc elerate to help to over-
take a passing vehicle.
The system’s identificat ion of what is an overtaking lane may be determined solely
based on the location of the ste ering wheel in the vehicle (left side driver position
versus right side driv er position.) If the vehicle is driven to a region where the over-
taking lane is on a different sid e from where the vehicle is normally driven, the vehi-
cle may accelerate when the turn signal lever is operated in th e opposite direction to
the overtaking lane (e.g., if th e driver normally operates the vehicle in a region
where the overtaking lane is to t he right but then drives to a region where the over-
taking lane is to the left, the vehicle may accelerate when the right turn signal is acti-
vated).
Example of acceleration
When there are no longer any preceding vehicles driving slower than the
set speed
The system accelerates until the set speed is reached. The system then returns to
constant speed cruising.
1 Press the cruise control main
switch to activate the cruise con -
trol.
Dynamic radar cruise control indicator
will come on and a message will be dis - played on the multi-information display.
Press the switch again to deactivate the
cruise control.
If the cruise control main switch is
pressed and held for 1.5 seconds or
more, the system tur ns on in constant
C
Setting the vehicle speed
(vehicle-to-vehicle distance
control mode)
3905-5. Using the driving support systems
1Pressing the cancel switch can-
cels the constant speed control.
The speed setting is also canceled
when the brakes are applied.
2 Pressing the “+RES” switch
resumes the constant speed
control.
Resuming is available when the vehicle
speed is more than ap proximately 30
km/h (20 mph).
■Cruise control can be set when
●The shift lever is in D.
●Vehicle speed is above approximately 30 km/h (20 mph).
■Accelerating after setting the vehi -
cle speed
●The vehicle can be accelerated nor-
mally. After acceleration, the set
speed resumes.
●Even without canceling the cruise
control, the set speed can be
increased by first accelerating the vehicle to the desired speed and then
pushing the “-SET” switch to set the
new speed.
■Automatic cancelation of cruise control
Cruise control will st op maintaining the
vehicle speed in any of the following sit -
uations.
●Actual vehicle speed falls more than
approximately 16 km/h (10 mph)
below the preset vehicle speed.
●Actual vehicle speed is below approxi -
mately 30 km/h (20 mph).
●VSC is activated.
●TRC is activated for a period of time.
●When the VSC or TRC system is turned off.
■If the warning message for the
cruise control is shown on the
multi-information display
Press the cruise control main switch
once to deactivate the system, and then
press the switch agai n to reactivate the system.
If the cruise control speed cannot be set
or if the cruise control cancels immedi - ately after being acti vated, there may be
a malfunction in the cruise control sys-
tem. Have the vehicle inspected by any authorized Toyota r etailer or Toyota
authorized repairer, or any reliable
repairer.
Canceling and resuming the
constant speed control
417
5
5-5. Using the driving support systems
Driving
■If “Parking Assist Unavailable” is
displayed on the multi-information display (vehicles with PKSB)
Water may be continuously flowing over
the sensor surface, such as in a heavy rain. When the system determines that it
is normal, the system will return to nor-
mal.
■Sensor detection information
●The sensor’s detec tion areas are lim-
ited to the areas aro und the vehicle’s front and rear bumpers.
●The following situations may occur during use.
• Depending on the shape of the object
and other factors, t he detection dis- tance may shorten, or detection may
be impossible.
• Detection may be impossible if static objects draw too close to the sensor.
• There will be a shor t delay between
static object detec tion and display (warning buzzer sounds). Even at low
speeds, there is a possibility that the
object will come withi n 25 cm (9.8 in.) before the display is shown and the
warning buzzer sounds.
• It might be difficu lt to hear the buzzer due to the volume of the audio system
or air flow noise of the air conditioning
system. • It may be difficult to hear the sound of
this system due t o the buzzers of
other systems.
■Conditions under which the func -
tion may no t function correctly
Certain vehicle c onditions and the sur-
rounding environment may affect the
ability of a sensor to correctly detect objects. Particular instances where this
may occur are listed below.
●There is dirt, snow or ice on a sensor.
(Cleaning the sensors will resolve this problem.)
●A sensor is frozen. (Thawing the area will resolve this problem.)
In especially cold weather, if a sensor
is frozen the sensor display may be displayed abnormally, or objects, such
as a wall, may not be detected.
●A sensor is covered in any way.
●When a sensor or the area around a sensor is extremely hot or cold.
●On an extremely bumpy road, on an incline, on grav el, or on grass.
●The vicinity of the vehicle is noisy due to vehicle horns, motorcycle engines,
air brakes of large vehicles, or other
loud noises pro ducing ultrasonic waves.
●There is another vehicle equipped with parking assist sensors in the
vicinity.
●A sensor is coated with a sheet of
spray or heavy rain.
●If a sensor is hit by a large amount of
water, such as when driving on a
flooded road.
●If the vehicle is significantly tilted.
●The vehicle is approaching a tall or
curved curb.
●If objects draw too close to the sensor.
■Objects which may not be properly
detected
The shape of the object may prevent the sensor from detecting it. Pay particular
attention to the following objects:
●Wires, fences, ropes, etc.
●Cotton, snow and other materials that
absorb sound waves
●Sharply-angled objects
●Low objects
●Tall objects with upper sections pro- jecting outwards in the direction of
your vehicle
4205-5. Using the driving support systems
some situations. (automatic
buzzer mute function)
■Muting the buzzer sound (vehicles
with PKSB)
●Automatic buzzer mute function
Even when the sensor s are operating,
the buzzer will be muted in the following
situations:
• The distance between the vehicle and the detected objec t does not become
shorter (except when the distance
between the vehicle and object is 30 cm [1.0 ft.] or less).
• Your vehicle is moving away from the
object. • There are no detec table objects enter-
ing the path of your vehicle.
However, if another object is detected or
the situation changes while the buzzer is
muted, the buzzer begins sounding
again.
●To mute the buzzer sound
The buzzer can be temporarily muted by
pressing of the meter control
switches while a suggestion that says
mute is available is shown on the multi-
information display.
●When the mute is canceled
Mute will be automatic ally canceled in
the following situations.
• When the shift position is changed • When the vehicle s peed has reached
or exceeded a certain speed
• When the Toyota par king assist is turned off once and turned on again
• When the power switch is turned off
once and turned to ON again
■Customization
The buzzer volume can be adjusted on
the multi-information display. (except for
vehicles without front sensors) ( →P.186)
*: If equipped
■Parking Support Brake func-
tion (static objects)
→ P.424
■Parking Support Brake func-
tion (rear-crossing vehicles)
→ P.430
PKSB (Parking Support
Brake)*
The Parking Support Brake
system consists of the follow -
ing functions that operate
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 oper-
ates to urge the driver to take
evasive action. If the system
determines that the possibility
of a collision with a detected
object is extrem ely high, the
brakes are automatically
applied to help avoid the colli -
sion or help red uce the impact
of the collision.
PKSB (Parking Support
Brake) system
423
5
5-5. Using the driving support systems
Driving
continues to be depressed, the
brakes will be applied automatically
to reduce the vehicle speed. (Brake
control: See figure 3.)
Figure 1: When the PKSB (Park-
ing Support Brake) is not operat -
ing
Hybrid system output
Braking force
Time
Figure 2: When hybrid system
output restriction control oper -
ates
Hybrid system output
Braking force
Time
Hybrid system out put restriction
control begins operating (Sys -
tem determines that possibility
of collision with detected object
is high)
Figure 3: When hybrid system
output restriction control and
brake control operates
Hybrid system output
Braking force
Time
Hybrid system out put restriction
control begins operating (Sys -
tem determines that possibility
of collision with detected object
is high)
Brake control begins operating
(System determines that possi -
bility of collision with detected
object is extremely high)
■If the Parking Support Brake has
operated
If the vehicle is stopped due to operation
of the Parking Suppo rt Brake, the Park-
ing Support Brake will be disabled and the PKSB OFF indicator will illuminate. If
the Parking Support Brake operates
unnecessarily, brake control can be can - celed by depressing the brake pedal or
waiting for approximately 2 seconds for
it to automatically be canceled. Then, the vehicle can be operated by depress-
A
B
C
A
B
C
D
A
B
C
D
E