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4-5. Using the driving support systems
Driving
steep incline (vehicles with a Multid-
rive).
• 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
Stop & Start system, the engine will be
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 shift lever is shifted from D to
except for P (When the engine is
stopped by the Stop & Start system
when the shift lever is in D.) (vehicles
with a Multidrive).
• The shift lever is shifted from P.
(When the engine is stopped by the
Stop & Start system when the shift
lever is in P.) (vehicles with a Multid-
rive)
• The driver’s seat belt is unfastened.
• The driver’s door is opened.
• The driving mode is changed from
Normal or Eco drive mode to another
mode.
• The Stop & Start cancel switch is
pressed.
• The steering wheel is operated.
• The accelerator pedal is depressed
(vehicles with a Multidrive).
• 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.158,
159)
●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.280, 285)
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
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4-5. Using the driving support systems
■The system can be operated when
●The engine switch is in ON.
●Toyota parking assist-sensor function
is on.
●The vehicle speed is less than about
10 km/h (6 mph).
●A shift lever other than P is selected.
●Steering wheel is turned approxi- mately 90° or more (Front side sen-
sors, rear side sensors) (if equipped)
■If “Clean Parking Assist Sensor” is displayed on the multi-information display
A sensor may be covered with water drops, ice, snow, dirt, etc. Remove the water drops, ice, snow, dirt, etc., from
the sensor to return the system to nor- mal.
Also, due to ice forming on a sensor at
low temperatures, a warning message may be displayed or the sensor may not
be able to detect an object. Once the ice melts, the system will return to normal.
■Sensor detection information
The following situations may occur
during use.
●The sensors may be able to only
detect objects near the front and rear bumpers.
●Depending on the shape of the object and other factors, the detection dis-tance may shorten, or detection may
be impossible.
●If an object is extremely close to a
sensor, it may not be detected.
WARNING
●The front or rear bumper or a sen- sor receives a strong impact.
●A non-genuine Toyota suspension (lowered suspension, etc.) is
installed.
●Towing eyelets are installed.
●A backlit license plate is installed.
■When using Toyota parking assist-sensor
In the following situations, the system
may not function correctly due to a sensor malfunction, etc. Have the vehicle checked by any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer.
●The Toyota parking assist-sensor operation display flashes or shows continuously, and a beep sounds
when no objects are detected.
●If the area around a sensor collides
with something, or is subjected to strong impact.
●If the bumper or grille collides with something.
●If the display flashes or is displayed continuously and a buzzer does not sound, except when the mute func-
tion has been turned on.
●If a display error occurs, first check
the sensor. If the error occurs even when there is no ice, snow or mud on the sen-
sor, it is likely that the sensor is mal- functioning.
■Notes when washing the vehicle
Do not apply intensive bursts of water or steam to the sensor area.
Doing so may result in the sensor malfunctioning.
●When using a high pressure washer to wash the vehicle, do not spray the sensors directly, as doing
so may cause a sensor to malfunc- tion.
●When using steam to clean the vehicle, do not direct steam too close to the sensors as doing so
may cause a sensor to malfunction.
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4-5. Using the driving support systems
authorized repairer, or any reliable
repairer immediately.
■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.
■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.
NOTICE
■To prevent the GPF system from not operating properly
●Do not use fuel other than the spec-ified type
●Do not modify the exhaust pipes
Driving assist systems
To keep driving safety and per-
formance, the following 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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4-5. Using the driving support systems
Driving
■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.
■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.
■When the TRC/VSC/Trailer Sway
Control systems are operating
The slip indicator light will flash while the
TRC/VSC/Trailer Sway Control systems
are operating.
■Disabling the TRC system
If the vehicle gets stuck in mud, dirt or
snow, the TRC system may reduce
power from the engine to the wheels.
Pressing to turn the system off may
make it easier for you to rock the vehicle
in order to free it.
To turn the TRC system off, quickly
press and release .
The “Traction Control Turned OFF” will
be shown on the multi-information dis-
play.
Press again to turn the system
back on.
“Traction Control Turned OFF”
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4-5. Using the driving support systems
Driving
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.
■Operating conditions of emergency
brake signal
When the following conditions are met, the emergency brake signal will oper-
ates:
●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
deceleration that is not a sudden brak- ing operation.
■Secondary Collision Brake operat-ing conditions
The system operates when the SRS air- bag sensor detects a collision while the vehicle is in motion.
However, the system does not operate when components are damaged.
■Secondary Collision Brake auto-matic cancelation
The system is automatically canceled in any of the following situations.
●The vehicle speed drops approxi-mately 0 km/h (0 mph)
●A certain amount of time elapses during operation
●The accelerator pedal is depressed a large amount
WARNING
■The ABS does not operate effec-
tively when
●The limits of tire gripping perfor- mance have been exceeded (such
as excessively worn tires on a snow covered road).
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4-5. Using the driving support systems
Driving
WARNING
■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.
Do not increase speed. Do not apply vehicle brakes.
If you make no extreme correction with the steering or brakes, your vehi-cle and trailer should stabilize.
( →P.152)
■Secondary Collision Brake
Do not rely solely upon the Secondary Collision Brake. This system is designed to help reduce the possibil-
ity of further damage due to a second- ary collision, however, that effect changes according to various condi-
tions. Overly relying on the system may result in death or serious injury.