3725-5. Using the driving support systems
When a vehicle is detected running ahead of you, the system automatically deceler-
ates your vehicle. When a greater 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 warns 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 stop (vehicle is stopped
by system control). After the vehicle ahead starts off, pressing the “+RES” switch or
depressing the accelerator pedal (start-off operation) will resume 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 to an overtaking lane
while driving at 80 km/h (50 mph) or more, the vehicle will accelerate to help to over-
take a passing vehicle.
The system’s identification of what is an overtaking lane may be determined solely
based on the location of the steering wheel in the vehicle (left side driver position
versus right side driver position.) If the vehicle is driven to a region where the over-
taking lane is on a different side from where the vehicle is normally driven, the vehi-
cle may accelerate when the turn signal lever is operated in the opposite direction to
the overtaking lane (e.g., if the driver normally operates the vehicle in a region
where the overtaking lane is to the 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.
1Press 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 turns on in constant
speed control mode. (P.377)
C
Setting the vehicle speed
(vehicle-to-vehicle distance
control mode)
3765-5. Using the driving support systems
When the speed of the preceding
vehicle matches or exceeds your
vehicle speed
When the preceding vehicle is
traveling at an extremely slow
speed
Immediately after the cruise con-
trol speed was set
When depressing the accelerator
pedal
While driving in vehicle-to-vehicle
distance control mode, this function
will reduce the vehicle speed, if it is
determined to be necessary.
■Function operation
When the steering wheel begins to
be turned, the vehicle speed will
begin being reduced. When the
steering wheel is returned to the
center position, the vehicle speed
reduction will end.
Depending on the situation, the
vehicle speed will then return to the
vehicle-to-vehicle distance control
mode set speed.
In situations where vehicle-to-vehi-
cle distance control needs to oper-
ate, such as when a preceding
vehicle cuts in front of your vehicle,
the curve speed reduction function
will be canceled.
■Operation display
Vehicles with 7-inch multi-infor-
mation display
Vehicles with 12.3-inch multi-
information display
Displayed when the vehicle speed
is being reduced.
When the vehicle speed reduction
ends, the display will disappear.
■Changing the settings of the
curve speed reduction func-
tion
The curve speed reduction func-
tion can be enabled/disabled and
the vehicle speed reduction
strength can be adjusted on the
screen (P.199, 211) of the multi-
information display.
The setting will change each time the
meter control switches is pressed.
Curve speed reduction func-
tion
A
B
3805-5. Using the driving support systems
As the sensor may not be able to cor-
rectly detect these types of vehicles, the approach warning ( P.375) may not be activated.
●Vehicles that cut in suddenly
●Vehicles traveling at low speeds
●Vehicles that are not moving in the
same lane
●Vehicles with small rear ends (trailers
with no load on board, etc.)
●Motorcycles traveling in the same lane
●When water or snow thrown up by the surrounding vehicles hinders the
detecting of the sensor
●When your vehicle is pointing
upwards (caused by a heavy load in the luggage compartment, etc.)
●Preceding vehicle has an extremely high ground clearance
■Conditions under which the vehi-
cle-to-vehicle distance control mode may not function correctly
In the case of the following conditions,
operate the brake pedal (or accelerator pedal, depending on the situation) as necessary.
As the sensor may not be able to cor- rectly detect vehicles ahead, the system may not operate properly.
●When the road curves or when the lanes are narrow
●When steering wheel operation or your position in the lane is unstable
●When the vehicle ahead of you decel-erates suddenly
●When driving on a road surrounded by a structure, such as in a tunnel or on a
bridge
●While the vehicle speed is decreasing
to the set speed after the vehicle accelerates by depressing the accel-erator pedal
■Situations in which the curve speed
reduction function may not operate properly
In situations such as the following, the
curve speed reduction function may not operate properly:
●When the vehicle is being driven
381
5 5-5. Using the driving support systems
Driving
around a curve on an incline/decline
●When the course of the vehicle differs
from the shape of the curve
●When the vehicle speed is exces-
sively high when entering a curve
●When the steering wheel is suddenly
operated
*: If equipped
■Meter display
Vehicles with 7-inch multi-infor-
mation display
Set speed
Indicators
Vehicles with 12.3-inch multi-
information display
Set speed
Indicators
Cruise control*
Use the cruise control to main-
tain a set speed without
depressing the accelerator
pedal.
System Components
A
B
A
B
4125-5. Using the driving support systems
The driving mode returns to normal
mode if the switch is pressed while in
Eco drive mode or sport mode.
3 Sport mode
Controls the steering feeling and hybrid
system to create an acceleration
response that is suitable for sporty driv-
ing. Suitable for when crisp handling is
desired, such as when driving on
mountainous roads.
When the switch is turned to the right
while not in sport mode, the system
switches to sport mode and the sport
mode indicator illuminates on the multi-
information display.
■When the driving mode is changed
●The background color of the multi- information display changes accord-
ing to the selected driving mode.
●When the speedometer is set to ana-
log display, the speedometer display color also changes. (vehicles with 7-inch display)
●The color of the switch changes according to the selected driving
mode. (On some models)
■Air conditioning system operation in Eco drive mode
In Eco drive mode, heating/cooling oper-
ations and the fan speed is controlled to improve fuel efficiency. Perform the fol-lowing procedures to increase the air
conditioning performance.
●Adjust the fan speed ( P.431)
●Cancel Eco drive mode
■Canceling a driving mode
●Sport mode is automatically canceled and the driving mode returns to nor-mal mode when the power switch is
turned off.
●Normal mode and Eco drive mode are
not canceled until another driving mode is selected. (Even if the power
switch is turned off, normal mode and
Eco drive mode will not be automati- cally canceled.)
4145-5. Using the driving support systems
and the system will operate properly.
■When Trail Mode is canceled
In the following situations, Trail Mode is automatically canceled even if it is selected:
●When the driving mode is changed. ( P.411)
●When the hybrid system is restarted.
■Sounds and vibrations when driv- ing in Trail Mode
Any of the following conditions may occur when Trail Mode is operating. None of these indicates that a malfunc-
tion has occurred:
●Vibrations may be felt throughout the
vehicle or steering wheel
●Sounds may be heard from the engine
compartment
■When the Trail Mode indicator does not illuminate
When the Trail Mode indicator does not
illuminate even though the Trail Mode switch is pressed, the system may be malfunctioning.
Have the vehicle inspected by any authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer immediately.
■If “Exhaust Filter Full See Owner’s
Manual” is shown on the multi- information display
●The message may be displayed while high load driving with particulate mat-ter accumulating.
●Hybrid system output (engine speed) is restricted when a certain amount of
particulate matter accumulates, how- ever, it is possible to drive the vehicle unless the malfunction indicator lamp
comes on.
●Particulate matter can accumulate
more quickly if the vehicle is fre- quently driven short trips or at low speeds, or if the hybrid system is reg-
ularly started in an extremely cold environment. Excessive accumula-
tion of particulate matter can be pre- vented by periodically driving long distances continuously with intermit-
tent releasing of the accelerator pedal, such as when driving on highways and freeways.
■If the malfunction indicator lamp
comes on or “Hybrid System Mal- function Output Power Reduced Visit Your Dealer” is shown on the
multi-information display
The amount of accumulated particulate matter has exceeded a certain level.
Have the vehicle inspected by any authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer immediately.
NOTICE
■In order to ensure that Trail Mode operates properly
Do not continuously use the Trail Mode for a long period of time. Depending on the driving conditions,
the load on related parts increases and the system may not operate prop-erly.
GPF (Gasoline Particu-
late Filter) system
The GPF system collects par-
ticulate matter in the exhaust
gas by using an exhaust gas
filter. The system will operate
to regenerate the filter auto-
matically, depending on the
vehicle conditions.
4165-5. Using the driving support systems
■VSC+ (Vehicle Stability Con-
trol+)
Provides cooperative control of the
ABS, TRC, VSC and EPS.
Helps to maintain directional stabil-
ity when swerving on slippery road
surfaces by controlling steering per-
formance.
■Trailer Sway Control
Helps the driver to control trailer
sway by selectively applying brake
pressure for individual wheels and
reducing driving torque when trailer
sway is detected.
■TRC (Traction Control)
Helps to maintain drive power and
prevent the drive wheels from spin-
ning when starting the vehicle or
accelerating on slippery roads
■Active Cornering Assist (ACA)
Helps to prevent the vehicle from
drifting to the outer side by perform-
ing inner wheel brake control when
attempting to accelerate while turn-
ing
■Hill-start assist control
Helps to reduce the backward
movement of the vehicle when
starting on an uphill
■EPS (Electric Power Steering)
Employs an electric motor to
reduce the amount of effort needed
to turn the steering wheel.
■E-Four (Electronic On-Demand
AWD system)
Automatically controls the drive
system such as to front-wheel drive
or AWD (all wheel drive) according
to various running conditions
including normal driving, during cor-
nering, on a uphill, when starting
off, during acceleration, on a slip-
pery roads due to snow or rain,
thus contributing to stable
operability and driving stability.
■Emergency brake signal
When the brakes are applied sud-
denly, the emergency flashers
automatically flash to alert the vehi-
cle behind.
■The Secondary Collision
Brake (if equipped)
When the SRS airbag sensor
detects a collision and the system
operates, the brakes and brake
lights are automatically controlled
to reduce the vehicle speed and
help reduce the possibility of further
damage due to a secondary colli-
sion.
■When the TRC/VSC/ABS/Trail
Mode/Trailer Sway Control systems
are operating
The slip indicator light will flash while the
TRC/VSC/ABS/Trail Mode/Trailer Sway
Control systems are operating.
4185-5. Using the driving support systems
■Sounds and vibrations caused by
the ABS, brake assist, VSC, Trailer
Sway Control, TRC and hill-start
assist control systems
●A sound may be heard from the
engine compartment when the brake
pedal is depressed repeatedly, when
the hybrid system is started or just
after the vehicle begins to move. This
sound does not indicate that a mal-
function has occurred in any of these
systems.
●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.
■ECB operating sound
ECB operating sound may be heard in
the following cases, but it does not indi-
cate that a malfunction has occurred.
●Operating sound heard from the
engine compartment when the brake
pedal is operated.
●Motor sound of the brake system
heard from the front part of the vehicle
when the driver’s door is opened.
●Operating sound heard from the
engine compartment when one or two
minutes passed after the stop of the
hybrid system.
■Active Cornering Assist operation
sounds and vibrations
When the Active Cornering Assist is
operated, operation sounds and vibra-
tions may be generated from the brake
system, but this is not a malfunction.
■Automatic reactivation of TRC,
Trailer Sway Control and VSC sys-
tems
After turning the TRC, Trailer Sway
Control and VSC systems off, the sys-
tems will be automatically re-enabled in
the following situations:
●When the power switch is turned off
●If only the TRC system is turned off,
the TRC will turn on when vehicle
speed increases
If both the TRC and VSC systems are
turned off, automatic re-enabling will
not occur when vehicle speed
increases.
■Operating conditions of Active Cor-
nering Assist
The system operates when the following
occurs.
●TRC/VSC can operate
●The driver is attempting to accelerate
while turning
●The system detects that the vehicle is
drifting to the outer side
●The brake pedal is released
■Reduced effectiveness of the EPS
system
The effectiveness of the EPS system is
reduced to prevent the system from
overheating when there is frequent
steering input over an extended period
of time. The steering wheel may feel
heavy as a result. Should this occur,
refrain from excessive steering input or
stop the vehicle and turn the hybrid sys-
tem off. The EPS system should return
to normal within 10 minutes.
■Operating conditions of emergency
brake signal
When the following conditions are met,
the emergency brake signal will operate:
●The emergency flashers are off.
●Actual vehicle speed is over 55 km/h
(35 mph).
●The system judges from the vehicle
deceleration that it is a sudden brak-
ing operation.
■Automatic system cancelation of
emergency brake signal
The emergency brake signal will be can-
celed in any of the following situations:
●The emergency flashers are turned
on.
●The system judges from the vehicle