
2454-5. Using the driving support systems
4
Driving
■Secondary Collision Brake
When the airbag sensor detects a colli-
sion, the brakes and brake lights are
automatically controlled to reduce the
vehicle speed and that helps reduce
the possibility of further damage due to
a secondary collision
■TRAC (Traction Control)
Helps to maintain drive power and pre-
vent the drive wheels from spinning
when starting the vehicle or accelerat-
ing on slippery roads
■Active Cornering Assist (ACA)
Helps to prevent the vehicle from drift-
ing to the outer side by performing
inner wheel brake control when
attempting to accelerate during cor-
nering
■Hill-start assist control
Helps to reduce the backward move-
ment 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
■When the TRAC/VSC systems are
operating
The slip indicator light will flash while the
TRAC/VSC 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 easier 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 Co ntrol Turned Off” will be
shown on the multi-information display.
Press the switch again to turn the sys-
tem back on.
■Disabling both TRAC and VSC systems
To turn the TRAC and VSC systems off,
press and hold the switch for more
than 3 seconds while the vehicle is stopped.
The VSC OFF indicator light will come on
and the “Traction Control Turned Off” will
be shown on the multi-information display.
*
Press the switch again to turn the sys-
tem back on.
*: Pre-collision brake assist and pre-colli- sion braking will also be disabled. The
PCS warning light will come on and the
message will be shown on the multi-infor-
mation display. ( P.192)
■When the message is displayed on the
multi-information display showing that
TRAC has been disabled even if the
switch has not been pressed
TRAC is temporary deactivated. If the infor-
mation continues to show, contact your
Lexus dealer.

2464-5. Using the driving support systems
■Operating conditions of hill-start assist
control
When the following four conditions are met,
the hill-start assist control will operate:
●The shift lever is in a position other than P
or N (when starting off forward/back-
ward on an upward incline).
●The vehicle is stopped.
●The accelerator pedal is not depressed.
●The parking brake is not engaged.
■Automatic system cancelation of hill-
start assist control
The hill-start assist control will turn off in any
of the following situations:
●The shift lever is shifted to P or N.
●The accelerator pedal is depressed.
●The parking brake is engaged.
●2 seconds at maximum elapsed after the
brake pedal is released
■Sounds and vibrations caused by the
ABS, brake assist, VSC, TRAC 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 oper-
ating. None of these indicates that a mal-
function 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 Active Cornering Assist is operated,
operation sounds and vibrations 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 malfunction.
■Automatic reactivation of TRAC and
VSC systems
After turning the TRAC 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 TRAC system is turned off, the
TRAC will turn on when vehicle speed
increases. If both the TRAC and VSC
systems are turned off, automatic re-
enabling will not occur when vehicle
speed increases.
■Secondary Collision Brake operating
conditions
The vehicle speed is approximately 6 mph
(10 km/h) or more and the airbag sensor
detects a collision. (The Secondary Colli-
sion Brake will not operate when the vehicle
speed is below approximately 6 mph [10
km/h].)
■Secondary Collision Brake automatic
cancellation
The Secondary Collision Brake is automati-
cally canceled in the following situations.
●The vehicle speed drops below approxi-
mately 6 mph (10 km/h)
●A certain amount of time elapses during
operation
●The accelerator pedal is depressed a
large amount
■Operating conditions of Active Corner-
ing Assist
The system operates in the following situa-
tions.
●TRAC/VSC can operate
●The system determines that the vehicle is
drifting to the outer side when attempting
to accelerate during cornering
●The brake pedal is released
■Reduced effectiveness of the EPS sys-
tem
The effectiveness of the EPS system is

2474-5. Using the driving support systems
4
Driving
reduced to prevent the system from over-
heating 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 normal within 10 minutes.
WARNING
■The ABS does not operate effectively
when
●The limits of tire gripping performance
have been exceeded (such as exces-
sively worn tires on a snow covered
road).
●The vehicle hydroplanes while driving
at high speed on wet or slick roads.
■Stopping distance when the ABS is
operating may exceed that of normal
conditions
The ABS is not designed to shorten the
vehicle’s stopping di stance. Always main-
tain a safe distance from the vehicle in
front of you, especially in the following
situations:
●When driving on dirt, gravel or snow-
covered roads
●When driving with tire chains
●When driving over bumps in the road
●When driving over roads with potholes
or uneven surfaces
■TRAC/VSC may not operate effec-
tively when
Directional control and power may not
be achievable while driving on slippery
road surfaces, even if the TRAC/VSC
system is operating.
Drive the vehicle carefully in conditions
where stability and power may be lost.
■Active Cornering Assist does not
operate effectively when
●Do not rely solely upon Active Cor-
nering Assist. Active Cornering Assist
may not operate effectively when
accelerating down slopes or driving on
slippery road surfaces.
●When Active Cornering Assist fre-
quently operates, Active Cornering
Assist may temporarily stop operating
to ensure proper operation of the
brakes, TRAC, VSC.
■Hill-start assist control does not oper-
ate 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 control to hold the vehi-
cle on an incline, as doing so may lead
to an accident.
■When the TRAC/VSC 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 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 systems off unless
necessary.

2675-3. Using the air conditioning system and defogger
5
Interior features
(P.265)
Adjust the left-hand side tempera-
ture setting
Adjust the fan speed setting
Adjust the right-hand side tem-
perature setting
Set cooling and dehumidification
function on/off
Adjust the temperature for the
driver’s and front passenger’s seats
separately (“DUAL” mode)
( P.268)
Select the air flow mode
■Windshield wiper de-icer (if equipped)
This feature is used to prevent ice from
building up on the wi ndshield and wiper
blades.
The windshield wiper de-icer will automati-
cally turn off after a period of time.
■Eco air conditioning mode
When Eco drive mode is selected using the
driving mode select switch, eco air condi-
tioning mode turns on.
When a driving mode other than Eco drive
mode is selected, eco air conditioning
mode may turn off.
1Press the automatic mode switch or
select “AUTO” on the sub function
menu. ( P.265)
2
Adjust the temperature setting.
3
To stop the operation, press the off
switch or select “Off” on the sub
function menu.
If the fan speed setting or air flow
modes are operated, the automatic
mode indicator goes off. However,
automatic mode for functions other
than that operated is maintained.
■Using automatic mode
Fan speed is adjusted automatically accord-
ing to the temperature setting and the
ambient conditions.
Therefore, the fan may stop for a while until
warm or cool air is ready to flow immedi-
ately after the automatic mode switch is
pressed or “AUTO” is selected.
Cool air may blow around the upper body
even when the heater is on due to sunlight.
■Windshield fog detection function
When automatic mode is set, the humidity
sensor detects fog on the windshield and
controls the air condit ioning system to pre-
vent fog.
WARNING
■To prevent burns (vehicles with wind-
shield wiper de-icer)
Do not touch the glass at lower part of
the windshield or to the side of the front
pillars when the wind shield wiper de-icer
is on.
B
C
D
E
F
G
Using automatic mode
NOTICE
■Humidity sensor
In order to detect fog on the windshield,
a sensor which monitors the temperature
of the windshield, the surround humidity,
etc., is installed.
Follow these points to avoid damaging
the sensor:
●Do not disassemble the sensor
●Do not spray the glass cleaner on the
sensor or subject it to strong impacts

2875-6. Using the other interior features
5
Interior features
external devices.
The USB charging ports are for
charging only. They are not designed
for data transfer or other purposes.
Depending on the external device, it
may not charge properly. Refer to the
manual included with the device
before using a USB charging port.
■Using the USB charging ports
Open the lid.
■The USB charging ports can be used
when
The engine switch is in ACC or ON.
■Situations in which the USB charging
ports may not operate correctly
●If a device which consumes more than 2.1
A at 5 V is connected
●If a device designed to communicate with
a personal computer, such as a USB
memory device, is connected
●If the connected extern al device is turned
off (depending on device)
●If the temperature inside the vehicle is
high, such as after the vehicle has been
parked in the sun
■About connected external devices
Depending on the connected external
device, charging may occasionally be sus-
pended and then start again. This is not a
malfunction.
A portable device, such as a smart-
phone or mobile battery, can be
charged by just placing it on the
charging area, provided the device is
compatible with the Qi wireless
charging standard created by the
Wireless Power Consortium.
The wireless charger cannot be used
with a portable device that is larger
NOTICE
■To prevent damage to the USB
charging ports
●Do not insert foreign objects into the
ports.
●Do not spill water or other liquids into
the ports.
●When the USB charging ports are not
in use, close the lids. If a foreign object
or liquid enters a port may cause a
short circuit.
●Do not apply excessive force to or
impact the USB charging ports.
●Do not disassemble or modify the USB
charging ports.
■To prevent damage to external
devices
●Do not leave external devices in the
vehicle. The temperature inside the
vehicle may become high, resulting in
damage to an external device.
●Do not push down on or apply unnec-
essary force to an external device or
the cable of an external device while it
is connected.
■To prevent battery discharge
Do not use the USB charging ports for a
long period of time with the engine
stopped.
Wireless charger (if equipped)

2885-6. Using the other interior features
than the charging area. Additionally,
depending on the portable device, the
wireless charger may not operate
properly. Refer to the operation man-
ual of the portable device.
■The “Qi” symbol
The “Qi” symbol is a trademark of the
Wireless Power Consortium.
■Name for all parts
Operation indicator light
Power supply switch
Charge area
■Using the wireless charger
1 Press the power supply switch of
the wireless charger.
Pressing the switch ag ain turns the wireless
charger off. When turned on, the operation indicator
light (green) comes on.
When the engine switch
is turned off, the
on/off state of the wi reless charger will be
memorized.
2 Place a portable device on the
charging area with its charging sur-
face facing down.
While charging, the operation indicator
light (orange) will be illuminated.
If charging does not begin, move the porta-
ble device as close to the center of the
charging area as possible.
When charging is complete, the operation
indicator light (green) will illuminate.
■Recharging function
If a certain amount of time has
elapsed since charging completed
and the portable device has not
been moved, the wireless charger
will restart charging.
If the portable device is moved
within the charging area, charging
will stop temporarily then restart.A
B
C

2895-6. Using the other interior features
5
Interior features
■Operation indicator light status
*: Depending on the portable device, the operation indicator light may stay illumi-
nated (orange) after charging has com-
pleted.
If the operation indicator light blinks
If an error is detected, the operation indi-
cator light will blink (orange). Take the
appropriate measures according to the
table below.
• Blinks (orange) at a one second interval continuously
• Blinks (orange) 3 times repeatedly • Blinks (orange) 4 times repeatedly
■The wireless charger can be operated
when
The engine switch is in ACC or ON.
■Portable devices that can be charged
●Portable devices compatible with the Qi
wireless charging standard can be
charged by the wireless charger. How-
ever, compatibility with all devices which
meet the Qi wireless charging standard is
not guaranteed.
●The wireless charger is designed to sup-
ply low power electricity (5 W or less) to
a cellular phone, smartphone, or other
portable device.
■If a cover or accessory is attached to the
portable device
Do not charge a portable device if a cover
or accessory which is not Qi compatible is
attached. Depending on the type of cover
and/or accessory attached, it may not be
possible to charge the portable device. If
the portable device is placed on the
charging area and does not charge, remove
the cover and/or accessories.
■If interference is heard in AM radio
broadcasts while charging
Turn off the wireless charger and check if
Operation indicator lightState
OffThe Wireless char-
ger is off
Green (illuminated)
Standby (charging is
possible)
Charging is com-
plete
*
Orange (illumi-
nated)
A portable device
has been placed on
the charging area
(identifying the por-
table device)
Charging in prog-
ress
Suspected causesMeasure
Vehicle to charger
communication fail-
ure.Contact your Lexus
dealer.
Suspected causesMeasure
A foreign object
exists between the
portable device and
charging area.
Remove the foreign
object.
Portable device is
not positioned prop-
erly on the charging
area.Move the portable
device toward the
center of the
charging area.
Suspected causesMeasure
The temperature of
the wireless charger
is excessively high.Stop charging
immediately and
continue charging
after a while.

2905-6. Using the other interior features
the noise is reduced. If noise is reduced,
press and hold the power supply switch of
the wireless charger for 2 seconds. The fre-
quency of the wireless charger is changed
and noise may be reduced. When the fre-
quency is changed, the operation indicator
light will blink (orange) 2 times.
■Charging precautions
●If the electronic key cannot be detected
in the cabin, charging cannot be per-
formed. When a door is opened and
closed, charging may be temporarily sus-
pended.
●While charging, the wireless charger and
the portable device will become warm.
This is not a malfunction.
If a portable device becomes warm while
charging and charging stops due to the
protection function of the portable
device, wait until the portable device
cools down and charge it again.
■Sound generated during operation
When the power supply switch is turned on
or while a portable de vice is being identi-
fied, operation sounds may be heard. This is
not a malfunction.
■Cleaning the wireless charger
P.309
■Label indicating precautions for using
the wireless charger
There is a label on the vehicle front side of
the wireless charger. Follow the instructions
on the label.