2604-5. Using the driving support systems
●Preceding vehicle has an
extremely high ground clearance
■Conditions under which the
vehicle-to-vehicle distance con-
trol mode may not function cor-
rectly
In the case of the following condi-
tions, operate the brake pedal (or
accelerator pedal, depending on the
situation) as necessary.
As the sensor may not be able to
correctly 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 t he lane is unsta-
ble
●When the vehicle ahead of you
decelerates suddenly
●When driving on a road sur-
rounded 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 accelerator 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
around a curve on an
incline/decline
●When the course of the vehicle
differs from the s hape of the curve
●When the vehicle speed is exces-
sively high when entering a curve
●When the steering wheel is sud-
denly operated
2654-5. Using the driving support systems
4
Driving
vehicle will remain stopped.
Press the Stop & Start cancel
switch to disable the Stop &
Start system.
The Stop & Start cancel indicator
will illuminate.
Pressing the switch again will
enable the Stop & Start system and
the Stop & Start cancel indicator will
turn off.
■Automatic enabling of the Stop
& Start system
If the Stop & Start system is dis-
abled using the Sto p & Start cancel
switch, it will be automatically
re-enabled once the engine switch
is turned off and t hen the engine is
started.
When the engine is stopped by
the Stop & Start system when
the vehicle is on an incline,
when the brake pedal is
released, brake force is tempo-
rarily maintained to prevent the
vehicle from rolling backwards
before the engine is restarted and drive force is generated.
When drive force is generated,
the maintained brake force is
automatically canceled.
This function operates on flat
surfaces as well as steep
inclines.
Sound may be generated
from the brake system, but
this does not indicate a mal-
function.
Brake pedal response may
change and vibration may
occur, but this does not indi-
cate a malfunction.
■Points for use
●If the engine switch is pressed
when the engine is stopped by the
Stop & Start system, the engine
will not be able to be restarted by
the automatic engine start func-
tion. In this case, restart the
engine using the normal engine
starting procedure. ( P.197)
●When the engine is being
restarted by the Stop & Start sys-
tem, the power ou tlets may be
temporarily unusable, but this
does not indicate a malfunction.
●Installation and removal of electri-
cal components and wireless
devices may affect the Stop &
Start system. Contact your Toyota
dealer for details.
●When stopping the vehicle for a
longer period of time, turn the
engine switch off to stop the
engine completely.
●When the engine is restarted by
the Stop & Start system, the steer-
ing wheel may temporarily feel
heavy.
Disabling the Stop & Start
system
Hill-start assist control
3044-5. Using the driving support systems
mal. Note that normal driving is
still possible even when Multi-ter-
rain Select brake control is not
operating.
*: After stopping the vehicle, do not stop the engine until the display
message has turned off.
■When Mud & Sand or Rock &
Dirt mode is canceled
In the following situations, Mud &
Sand mode or Rock & Dirt mode are
automatically canceled even if they
are selected.
●When the driving mode is
changed ( P.300)
●When the engine switch is turned
off
■Driving in Mud & Sand or Rock
& Dirt mode
The following types of situations
may occur, but they are not malfunc-
tions.
●Vibrations may be felt throughout
the vehicle or steering wheel
●Operating noise may be heard
from the engine compartment
■When an inspection at your
Toyota dealer is necessary
In the following si tuations, the sys-
tem may be malfunctioning. Have
the vehicle inspected by your Toyota
dealer immediately.
●When the slip indic ator light illumi-
nates while Mud & Sand or Rock
& Dirt mode is selected
●When the indicator for each mode
does not illuminate even though
Mud & Sand or Rock & Dirt mode
is selected
Press the snow mode switch.
When the switch is pressed, the
system switches to snow mode and
the snow mode indi cator illuminates
on the multi-information display.
When the switch is pressed again,
the snow mode indicator turns off.
■Canceling the snow mode
Snow mode is automatically can-
celed when the engine switch is
turned OFF or Mud & Sand or Rock
& Dirt mode is selec ted for Multi-ter-
rain Select.
Snow mode switch
Snow mode can be selected
to suit the conditions when
driving on slippery road sur-
faces, such as on snow.
System operation
3074-5. Using the driving support systems
4
Driving■ABS (Anti-lock Brake Sys-
tem)
Helps to prevent wheel lock
when the brakes are applied
suddenly, or if the brakes are
applied while driving on a slip-
pery road surface
■Brake assist
Generates an increased level of
braking force after the brake
pedal is depressed when the
system detects a panic stop sit-
uation
■VSC (Vehicle Stability Con-
trol)
Helps the driver to control skid-
ding when swerving suddenly or
turning on slippery road sur-
faces
■Enhanced VSC (Enhanced
Vehicle Stability Control)
Provides cooperative control of
the ABS, TRAC, VSC and EPS.
Helps to maintain directional
stability when swerving on slip-
pery road surfaces by con-
trolling steering performance.
■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.
■TRAC (Traction Control)
Helps to maintain drive power
and prevent the drive wheels
from spinning when starting the
vehicle or accelerating on slip-
pery roads
■Active Cornering Assist
(ACA)
Helps to prevent the vehicle
from drifting to the outer side by
performing inner wheel brake
control when attempting to
accelerate while turning
■Hill-start assist control
Helps to reduce the backward
movement of the vehicle when
starting on an uphill
■EPS (Electric Power Steer-
ing)
Employs an electric motor to
reduce the amount of effort
needed to turn the steering
Driving assist systems
To keep driving safety and
performance, the following
systems operate automati-
cally in response to various
driving situations. Be
aware, however, that these
systems are supplementary
and should not be relied
upon too heavily when oper-
ating the vehicle.
Summary of the driving
assist systems
3084-5. Using the driving support systems
wheel
■Dynamic Torque Control
AWD system (AWD models)
Automatically controls the drive
system such as to front-wheel
drive or AWD (all wheel drive)
according to various running
conditions including normal driv-
ing, during cornering, on a
uphill, when starting off, during
acceleration, on a slippery roads
due to snow or rain, thus con-
tributing to stable operability and
driving stability.
■Dynamic Torque Vectoring
AWD system (AWD models)
Automatically controls the drive
system such as to front-wheel
drive or AWD (all wheel drive)
according to various running
conditions including normal driv-
ing, during cornering, on a
uphill, when starting off, during
acceleration, on a slippery roads
due to snow or rain, thus con-
tributing to stable operability and
driving stability.
Also, drive torque distribution is
precisely controlled during cor-
nering, contributing to improve-
ments in operability and stability.
■The Secondary Collision
Brake
When the SRS airbag sensor
detects a collision and the sys-
tem operates, the brakes and
brake lights are automatically
controlled to reduce the vehicle speed and help reduce the pos-
sibility of further damage due to
a secondary collision.
■When the TRAC/VSC/Trailer
Sway Control systems are oper-
ating
The slip indicator light will flash
while the TRAC/VSC/Trailer Sway
Control systems are operating.
■Disabling the TRAC system
If the vehicle gets stuck in mud, dirt
or snow, the TRAC system may
reduce power from the engine to the
wheels. Pressing the switch to
turn the system off may make it eas-
ier for you to rock the vehicle in
order to free it.
To turn the TRAC system off, quickly
press and release the switch.
The “Traction Cont rol Turned OFF”
will be shown on the multi-informa-
tion display.
Press the switch again to turn
the system back on.
3104-5. Using the driving support systems
■AWD system operation sounds
and vibrations when switching
between AWD and front wheel
drive (if equipped)
When the vehicle switches from
AWD to front wheel drive and vice
versa, operation sounds and vibra-
tions may be generated, but this is
not a malfunction.
■Reduced effectiveness of the
EPS system
The effectiveness of the EPS sys-
tem is reduced to prevent the sys-
tem from overheating when there is
frequent steering input over an
extended period of time. The steer-
ing wheel may feel heavy as a
result. Should this occur, refrain
from excessive steering input or
stop the vehicle and turn the engine
off. The EPS syst em should return
to normal within 10 minutes.
■Automatic reactivation of
TRAC, Trailer Sway Control and
VSC systems
After turning the TRAC, Trailer
Sway Control and VSC systems off,
the systems will be automatically
re-enabled in the following situa-
tions:
●When the engine switch is turned
OFF
●If only the TRAC system is turned
off, the TRAC will turn on when
vehicle speed increases
If both the TRAC and VSC sys-
tems are turned off, automatic
re-enabling will not occur when
vehicle speed increases.
■Operating conditions of Active
Cornering Assist
The system operates when the fol-
lowing occurs.
●TRAC/VSC can operate
●The driver is at tempting to accel-
erate while turning
●The system detects that the vehi-
cle is drifting to the outer side
●The brake pedal is released
■If a message about AWD is
shown on the multi-information
display (AWD models)
Perform the following actions.
●“AWD System Over-heated
Switching to 2WD Mode.” AWD
system is overheated. Stop the
vehicle in a safe place with the
engine running.
*
If the message disappears after a
while, there is no problem. If the
message remains, have the vehi-
cle inspected by your Toyota
dealer immediately.
●“AWD System Over-heated 2WD
Mode Engaged.” AWD system
has been temporarily released
and switched to front-wheel drive
due to overheating. Stop the vehi-
cle in a safe place with the engine
running.
*
If the message disappears after a
while, AWD system will automati-
cally recover. If the message
remains, have the vehicle
inspected by your Toyota dealer
immediately.
●“AWD system Malfunction 2WD
Mode Engaged Visit Your Dealer.”
A malfunction occurs in the AWD
system. Have the vehicle
inspected by your Toyota dealer
immediately.
*: When stopping the vehicle, do not stop the engine until the display
message has turned off.
■Secondary Collision Brake
operating conditions
The system operates when the SRS
airbag sensor de tects a collision
while the vehicle is in motion.
However, the system does not oper-
ate when the components are dam-
aged.
3124-5. Using the driving support systems
WARNING
■When the TRAC/VSC/Trailer
Sway Control is activated
The slip indicator light flashes.
Always drive carefully. Reckless
driving may cause an accident.
Exercise particular care when the
indicator light flashes.
■When the TRAC/VSC/Trailer
Sway Control systems are
turned off
●Be especially careful and drive
at a speed appropriate to the
road conditions. As these are
the systems to help ensure
vehicle stability and driving
force, do not turn the
TRAC/VSC/Trailer Sway Con-
trol systems off unless neces-
sary.
●Trailer Sway Control is part of
the VSC system and will not
operate if VSC is turned off or
experiences a malfunction.
■Dynamic Torque Vectoring
AWD system
The cornering performance of the
AWD system has been improved.
However, do not overly rely on the
system and drive with caution.
■Replacing tires
Make sure that all tires are of the
specified size, brand, tread pat-
tern and total load capacity. In
addition, make sure that the tires
are inflated to the recommended
tire inflation pressure level.
The ABS, TRAC, Trailer Sway
Control and VSC systems will not
function correctly if different tires
are installed on the vehicle.
Contact your Toyota dealer for fur-
ther information when replacing
tires or wheels.
■Handling of tires and the sus-
pension
Using tires with any kind of prob-
lem or modifying the suspension
will affect the driving assist sys-
tems, and may cause a system to
malfunction.
■Trailer Sway Control precau-
tion
The Trailer Sway Control system
is not able to red uce trailer sway
in all situations. Depending on
many factors such as the condi-
tions of the vehicle, trailer, road
surface and driving environment,
the Trailer Sway Control system
may not be effective. Refer to
your trailer owner’s manual for
information on how to tow your
trailer properly.
■If trailer sway occurs
Observe the following precau-
tions.
Failing to do so may cause death
or serious injury.
●Firmly grip the steering wheel.
Steer straight ahead. Do not try
to control trailer sway by turning
the steering wheel.
●Begin releasing the accelerator
pedal immediately but very
gradually to reduce speed.
Do not increase speed. Do not
apply vehicle brakes.
If you make no extreme correction
with the steering or brakes, your
vehicle and traile r should stabi-
lize. ( P.186)
3144-6. Driving tips
4-6.Driving tips
Use fluids that are appropriate
to the prevailing outside tem-
peratures.
• Engine oil
• Engine coolant
• Washer fluid
Have a service technician
inspect the condition of the
battery.
Have the vehicle fitted with
four snow tires or purchase a
set of tire chains for the front
tires.
Ensure that all tires are the same
size and brand, and that chains
match the size of the tires.
Perform the following according
to the driving conditions:
Winter driving tips
Carry out the necessary
preparations and inspec-
tions before driving the
vehicle in winter. Always
drive the vehicle in a man-
ner appropriate to the pre-
vailing weather conditions.
Pre-winter preparations
WARNING
■Driving with snow tires
Observe the following precautions
to reduce the risk of accidents.
Failure to do so m ay result in a
loss of vehicle control and cause
death or serious injury.
●Use tires of the specified size.
●Maintain the recommended
level of air pressure.
●Do not drive in excess of 75
mph (120 km/h), regardless of
the type of snow tires being
used.
●Use snow tires on all, not just
some wheels.
■Driving with tire chains
Observe the following precautions
to reduce the risk of accidents.
Failure to do so may result in the
vehicle being unable to be driven
safely, and may cause death or
serious injury.
●Do not drive in excess of the
speed limit specifi ed for the tire
chains being used, or 30 mph
(50 km/h), whichever is lower.
●Avoid driving on bumpy road
surfaces or over potholes.
●Avoid sudden acceleration,
abrupt steering, sudden brak-
ing and shifting operations that
cause sudden engine braking.
●Slow down sufficiently before
entering a curve to ensure that
vehicle control is maintained.
●Do not use the LTA (Lane Trac-
ing Assist) system.
NOTICE
■Repairing or replacing snow
tires
Request repairs or replacement of
snow tires from Toyota dealers or
legitimate tire retailers.
This is because the removal and
attachment of snow tires affects
the operation of the tire pressure
warning valves and transmitters.
Before driving the vehicle