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●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
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Example of constant speed cruising
When there are no vehicles ahead
The vehicle travels at the speed set by the driver.
Example of deceleration cruising and follow-up cruising
When a preceding vehicle driving slower than the set speed appe ars
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 ti me). The system will
respond to changes in the speed of the vehicle ahead in order t o 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 turn signal lever is operated and your vehicle moves t o an overtaking lane
while driving at 80 km/h (50 mph) or more, the vehicle will acc elerate to help to over-
take a passing vehicle.
The system’s identification of what is an overtaking lane may b e determined solely
based on the location of the steering wheel in the vehicle (lef t 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 no rmally 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 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
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4-5. Using the driving support systems
●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
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Driving
or transmission fluid temperature is
extremely low or high. • When the steering wheel is being operated.
• When the vehicle is being driven in a high altitude area.• When the battery fluid temperature is
extremely low or high. • For a while after the battery terminals have been disconnected and recon-
nected.
●When the engine is stopped by the
S t o p & S t a r t s y s t e m , t h e e n g i n e w i l l b e restarted automatically if any of the following conditions are met:
(To enable the engine to be stopped by
the Stop & Start system again, drive the
vehicle.)
• The air conditioning system is turned on. (vehicles without a manual air conditioning system)
• The windshield defogger is turned on. (vehicles without a manual air condi-tioning system)
• The driver’s seat belt is unfastened. • The driver’s door is opened.• The Stop & Start cancel switch is
pressed. • The steering wheel is operated.• The vehicle starts to roll on an incline.
●When the engine is stopped by the Stop & Start system, the engine may
restart automatically in the following situations: (To enable the engine to be stopped by the Stop & Start system
again, drive the vehicle.) • When the brake pedal is pumped or strongly depressed.
• When the air conditioning system is being used.• When a switch of the air conditioning
system is operated (windshield defog- ger switch, etc.).• If the battery charge becomes low.
■When the hood is opened
●If the hood is opened while the engine is stopped by the Stop & Start system,
the engine will stall and will not be able to be restarted by the automatic engine start function. In this case,
restart the engine using the normal
engine starting procedure. ( P.173, 174)
●If the hood is closed after the engine is started with the hood open, the Stop & Start system will not operate. Close
the hood, turn the engine switch off, wait 30 seconds or more, and then start the engine.
■Air conditioning system operation
while the engine is stopped by the Stop & Start system
Vehicles with an automatic air condition-
ing 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 per- formance when the vehicle is stopped,
disable the Stop & Start system by pressing the Stop & Start cancel switch.
●If the windshield is fogged up
Turn the windshield defogger on.
( P.313, 318)
If the windshield fogs up frequently,
press the Stop & Start cancel switch to
disable the Stop & Start system.
●If an odor is emitted from the air con-
ditioning system • Vehicles with a manual air condition-ing 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 deacti-
vate the Stop & Start system.
• Vehicles with an automatic air condi- tioning system
Press the Stop & Start cancel switch to
deactivate the Stop & Start system.
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Driving
■ABS (Anti-lock Brake System)
Helps to prevent wheel lock when
the brakes are applied suddenly, or
if the brakes are applied while driv-
ing on a slippery road surface
■Brake assist
Generates an increased level of
braking force after the brake pedal
is depressed when the system
detects a panic stop situation
■VSC (Vehicle Stability Control)
Helps the driver to control skidding
when swerving suddenly or turning
on slippery road surfaces.
■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.
■Emergency brake signal
When the brakes are applied sud-
denly, the emergency flashers auto-
matically flash to alert the vehicle
behind.
■The Secondary Collision
Brake
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.
Driving assist systems
To keep driving safety and per-
formance, the f ollowing sys-
tems operate automatically in
response to various driving sit-
uations. Be aware, however,
that these systems are supple-
mentary and should not be
relied upon too heavily when
operating the vehicle.
Summary of the driving
assist systems
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Driving
●The accelerator pedal is not
depressed
●The parking brake is not engaged
●Engine switch is turned to ON
■Automatic system cancelation of hill-start assist control
The hill-start assist control will turn off in any of the following situations:
●Vehicles with a Multidrive: The shift lever is shifted to P or N.
●Vehicles with a manual transmission: The shift lever is shifted to R when starting off forward on an upward
incline, or the shift lever is shifted to other than R when starting off back-ward on an upward incline.
●The accelerator pedal is depressed
●The parking brake is engaged
●2 seconds at maximum elapsed after
the brake pedal is released
●Engine switch is turned to OFF
■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 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.
●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.
■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.
■EPS operation sound
When the steering wheel is operated, a
motor sound (whirring sound) may be heard. This does not indicate a malfunc-tion.
■Automatic reactivation of TRC,
Trailer Sway Control and VSC sys- tems
After turning the TRC, Trailer Sway Con-
trol and VSC systems off, the systems will be automatically re-enabled in the following situations:
●When the engine 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 engine off. The EPS system should return to nor-
mal within 10 minutes.
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WARNING
■Hill-start assist control does not operate effectively when
●Do not overly rely on hill-start assist control. Hill-start assist control may not operate effectively on steep
inclines and roads covered with ice.
●Unlike the parking brake, hill-start
assist control is not intended to hold the vehicle stationary for an extended period of time. Do not
attempt to use hill-start assist con- trol to hold the vehicle on an incline, as doing so may lead to an acci-
dent.
■When the TRC/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 TRC/VSC/Trailer Sway Control systems are turned off
Be especially careful and drive at a
speed appropriate to the road condi- tions. As these are the systems to help ensure vehicle stability and driv-
ing force, do not turn the TRC/VSC/Trailer Sway Control sys-tems off unless necessary.
Trailer Sway Control is part of the VSC system and will not operate if VSC is turned off or experiences a
malfunction.
■Replacing tires
Make sure that all tires are of the specified size, brand, tread pattern
and total load capacity. In addition, make sure that the tires are inflated to the recommended tire inflation pres-
sure level. The ABS, TRC Trailer Sway Control and VSC systems will not function
correctly if different tires are installed on the vehicle.Contact any authorized Toyota retailer
or Toyota authorized repairer, or any reliable repairer for further information when replacing tires or wheels.
■Handling of tires and the suspen-sion
Using tires with any kind of problem or modifying the suspension will affect the driving assist systems, and may
cause a system to malfunction.
■Trailer Sway Control precaution
The Trailer Sway Control system is not able to reduce trailer sway in all situations. Depending on many fac-
tors such as the conditions of the vehicle, trailer, road surface and driv-ing 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 precautions. 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 gradu-ally to reduce speed.
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4-6. Driving tips
Driving
4-6.Driving tips
Use fluids that are appropriate to
the prevailing outside tempera-
tures.
• Engine oil
• Engine coolant
• Washer fluid
Have a service technician
inspect the condition of the bat-
tery.
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.
Winter driving tips
Carry out the necessary prepa-
rations and inspections before
driving the vehicle in winter.
Always drive the vehicle in a
manner 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 may result in a loss of vehicle control and cause death or
serious injury.
●Use tires of the size specified.
●Maintain the recommended level of air pressure.
●Do not drive at speeds in excess of the speed limit or the speed limit specified for the 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 vehi-
cle being unable to be driven safely, and may cause death or serious injury.
●Do not drive in excess of the speed limit specified for the tire chains
being used, or 50 km/h (30 mph), whichever is lower.
●Avoid driving on bumpy road sur-faces or over potholes.
●Avoid sudden acceleration, abrupt steering, sudden braking and shift-ing operations that cause sudden
engine braking.
●Slow down sufficiently before enter-
ing a curve to ensure that vehicle control is maintained.
●Do not use LTA (Lane Tracing Assist) system. (if equipped)
●Do not use LDA (Lane Departure Alert with steering control) system. (if equipped)
NOTICE
■Repairing or replacing snow tires
Request repairs or replacement of snow tires from any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer 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.