steering LEXUS RCF 2022 Service Manual

1704-5. Using the driving support systems
RC F Owner's Manual
If a different warning message is displayed,
follow the instructions displayed on the
screen.
■Customization
The following settings can be changed.
For how to change settings, refer to P.358
“Front Cam-
era Unavail-
able”
The operation conditions
of the camera sensor (tem-
perature, etc.) are not met.
 When the operation
conditions of the camera
sensor (temperature, etc.)
are met, the LDA system
will become available. Turn
the LDA system off, wait
for a little while, and then
turn the LDA system back
on.
“Lane Depar-
ture Alert
Unavailable”
The LDA system is tempo-
rarily canceled due to a
malfunction in a sensor
other than the camera sen-
sor.
 Turn the LDA system off
and follow the appropriate
troubleshooting proce-
dures for the warning mes-
sage. Afterward, drive the
vehicle for a short time,
and then turn the LDA sys-
tem back on.
“Lane Depar-
ture Alert
Unavailable
Below
Approx
32MPH”The LDA system cannot be
used as the vehicle speed
is less than approximately
32 mph (50 km/h).
 Drive the vehicle at
approximately 32 mph
(50 km/h) or more.
“Lane Depar-
ture Alert
Unavailable at
Current
Speed”The LDA system cannot be
used as the vehicle speed
is too high.
 Slow down.
Warning mes-
sageDetails/Actions
FunctionSetting details
Lane departure
alert functionAdjust alert sensitivity
Adjust alert type
Steering control
functionTurn steering wheel
assistance on and off
Vehicle sway
warning functionTurn function on and
off
Adjust alert sensitivity

1784-5. Using the driving support systems
RC F Owner's Manual
■Brake system operation sound
If the brakes are app lied automatically while
the vehicle is in vehicle-to-vehicle distance
control mode, a brake system operation
sound may be heard. This does not indicate
a malfunction.
■Warning messages and buzzers for
dynamic radar cruise control
Warning messages and buzzers are used to
indicate a system malfunction or to inform
the driver of the need for caution while driv-
ing. If a warning message is shown on the
multi-information display, read the message
and follow the instructions.
■When the sensor may not be correctly
detecting the vehicle ahead
In the case of the fo llowing and depending
on the conditions, operate the brake pedal
when deceleration of the system is insuffi-
cient or operate the accelerator pedal
when acceleration is required.
As the sensor may not be able to correctly
detect these types of vehicles, the approach
warning (P.176) 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 travelin g in the same lane
●When water or snow thrown up by the
surrounding vehicles hinders the detect-
ing 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 nec-
essary.
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 the lane is unstable
●When the vehicle ahead of you deceler-
ates 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 acceler-
ates by depressing the accelerator pedal

1924-5. Using the driving support systems
RC F Owner's Manual
1Normal mode/Custom mode
Normal mode and custom mode are
selected by pressing the driving mode
select switch. Each time the switch is
pressed, the driving mode changes
between normal mode and custom mode.
When custom mode is selected, the “CUS-
TOM” indicator will be illuminated.
When Eco drive mode or sport mode is
selected, pressing th e switch changes the
driving mode to normal mode.
•Normal mode
Provides an optimal balance of fuel econ-
omy, quietness, and dynamic performance.
Suitable for city driving.
•Custom mode
Allows you to drive with the following func-
tions set to your preferred settings.
Custom mode settings can only be
changed on the drive mode customization
display of the Center Display. ( P.208)
2Eco drive mode
Helps the driver accelerate in an
eco-friendly manner and improve fuel
economy through moderate throttle char-
acteristics and by controlling the operation
of the air conditioning system (heat-
ing/cooling).
When not in Eco drive mode, if the driving
mode select switch is turned to the left, the
Eco drive mode indicator will come on.
3Sport mode
• SPORT S mode
Controls the transmission and engine to
provide quick, powerful acceleration. Also,
gear shift timing is controlled to suit sporty
driving, making this mode is suitable for
when agile driving response is desired,
such as when driving on roads with many
curves.
When not in SPORT S mode, if the driving
mode select switch is turned to the right,
the “SPORT S” indicator will come on.
• SPORT S+ mode
Provides earlier downshift timing than
SPORT S mode in order to maintain a high
engine speed and provides faster gear
changes. This mode also changes the
steering feel, susp ension control and
VDIM control, making it suitable for pow-
erful sporty driving.
Driving mode select switch
The driving modes can be selected
to suit driving condition.
Selecting a drive mode
FunctionSetting
Powertrain
Normal
Power
Eco
ChassisNormal
Sport
Air conditioning sys-
temNormal
Eco

1974-5. Using the driving support systems
RC F Owner's Manual
4
Driving
*: If equipped
Pressing the “TVD” switch changes the
TVD control mode.
The current TVD control mode will be dis-
played on the meters.
1STANDARD mode
This is the default mo de and provides an
optimum balance of driving agility and sta-
bility.
NOTICE
■To prevent battery discharge
Do not operate the active rear wing
repeatedly while the engine is turned off.
TVD (Torque Vectoring Dif-
ferential)
*
The TVD system distributes driving
force (torque) between the right
and left rear wheels automatically.
This system contributes to
enhanced steering response while
cornering and increased traction
when exiting a corner, providing an
agile driving experience.
Changing TVD control modes

1984-5. Using the driving support systems
RC F Owner's Manual
2SLALOM mode
This mode emphasizes enhanced steering
response.
3TRACK mode
This mode emphasizes stability for high
speed sporty driving.
■Operating conditions
The engine switch is in IGNITION ON
mode.
■Automatic cancelation of the selected
TVD control mode
SLALOM and TRACK mode are canceled
when the engine switch is turned off. When
the engine switch is turned to IGNITION
ON mode, the TVD system will be in
STANDARD mode.
■Automatic disabling of the TVD system
If a malfunction is detected in the TVD sys-
tem, a warning message will be displayed
on the multi-information display ( P.309)
and the TVD system will be disabled auto-
matically. If the system is disabled, driving
force will not be distributed by the TVD but
through normal differential operation.
■To protect the system
The TVD fluid temperature may become
excessively high when driving for a long
time under extremely high load conditions.
In this case, a warnin g message will be dis-
played on the multi-information display.
(  P.309)
The multi-information display shows the distribution of driving force
between the right and left rear wheels.
(
 P.73)
WARNING
■Cautions regarding the use of the sys-
tem
The driver is solely responsible for safe
driving. Do not overly rely on the TVD
system. Always drive safely, taking care
to observe your surroundings.
TVD control status on the
multi-information display

1994-5. Using the driving support systems
RC F Owner's Manual
4
Driving
■ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the
brakes are applied suddenly, or if the
brakes are applied while driving on a
slippery road surface
■Brake assist
Generates an increased level of brak-
ing 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 sudden ly or turning on
slippery road surfaces
■Enhanced VSC (Enhanced Vehi-
cle Stability Control)
Provides cooperative control of the
ABS, TRAC, VSC and EPS.
Helps to maintain directional stability
when swerving on slippery road sur-
faces by controlling steering perfor-
mance.
■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
■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
■Adaptive Variable Suspension Sys-
tem
By independently controlling the
damping force of th e shock absorbers
for each of the 4 wheels according to
the road and driving conditions, this
system combines riding comfort with
superior vehicle stability, and helps
good vehicle posture.
■VDIM (Vehicle Dynamics Inte-
grated Management)
Provides integrated control of the
ABS, brake assist, TRAC, VSC,
hill-start assist control and EPS systems
Helps to maintain vehicle stability when
swerving on slippery road surfaces by
controlling the brakes, engine output
and steering assist.
■When the TRAC/VSC systems are
operating
The slip indicator light will flash while the
TRAC/VSC systems are operating.
Driving assist systems
To keep enhance driving safety and
performance, the following systems
operate automatically in response
to various driving situations. Be
aware, however, that these systems
are supplementary and should not
be relied upon too heavily when
operating the vehicle.
Summary of the driving assist
systems

2014-5. Using the driving support systems
RC F Owner's Manual
4
Driving
cator light continues to remain on, contact
your Lexus dealer.
■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 moved to P or N.
●The accelerator pedal is depressed.
●The parking brake is engaged.
●Approximately 2 seconds elapse 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 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.
■EPS operation sound
When the steering wheel is operated, a
motor sound (whirring sound) may be
heard. This does not indicate a malfunction.
■Reactivation of the TRAC/VSC systems
Even after the TRAC /VSC systems have
been turned off, turn ing the engine off and
then on again will automatically reactivate
the TRAC/VSC systems.
■Reactivation of the TRAC system linked
to vehicle speed
When only the TRAC system is turned off,
the TRAC system will turn on when vehicle
speed increases. Ho wever, when both
TRAC/VSC systems are turned off, the sys-
tems will not turn on even when vehicle
speed increases.
■Reduced effectiveness of the EPS sys-
tem
The effectiveness of the EPS system is
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, re frain 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 over bumps in the road

205
RC F Owner's Manual
5
5
Interior features
Interior features
.5-1. Remote Touch/DisplayRemote Touch ............................ 206
Center Display ........................... 208
5-2. Using the air conditioning system Automatic air conditioning system.......................................................... 211
Heated steering wheel/seat heat- ers/seat ventilators ................. 219
5-3. Using the interior lights Interior lights list.......................... 221
5-4. Using the storage features List of storage features............ 223
Trunk features............................. 225
5-5. Using the other interior features
Other interior features ........... 226
Garage door opener............... 229
Compass....................................... 234

2195-2. Using the air conditioning system
RC F Owner's Manual
5
Interior features
*:If equipped
Turn the heated steering wheel on/off
The indicator light comes on when the
heated steering wheel is operating.
■Operation condition
The engine switch is in IGNITION ON
mode.
■Timer function
The heated steering wheel will automati-
cally turn off after about 30 minutes.
Vehicles without seat ventilators
Each time the switch is pressed, the
intensity of the seat heater changes
and the level indicator lights (amber) light as follows:
Hi (3 segments lit) Mid (2 segments
lit)  Lo (1 segment lit) Off
Vehicles with seat ventilators
Each time the switch is pressed, the
intensity of the seat heater changes
and the level indicator lights (amber)
Heated steering wheel*/seat
heaters
*/seat ventilators*
Heated steering wheel and seat
heaters heat the side grips of the
steering wheel and seats, respec-
tively. Seat ventilators maintain
good ventilation using a fan built
into the seat.
WARNING
■To prevent minor burn injuries
Care should be taken if anyone in the fol-
lowing categories comes in contact with
the steering wheel or seats when the
heater is on:
●Babies, small children, the elderly, the
sick and the phys ically challenged
●Persons with sensitive skin
●Persons who are fatigued
●Persons who have taken alcohol or
drugs that induce sleep (sleeping
drugs, cold remedies, etc.)
NOTICE
■To prevent damage to the seat heat-
ers and seat ventilators
Do not put heavy objects that have an
uneven surface on the seat and do not
stick sharp objects (needles, nails, etc.)
into the seat.
■To prevent battery discharge
Do not use the functions when the
engine is off.
Heated steering wheel
Seat heaters
A
A

2426-1. Maintenance and care
RC F Owner's Manual
●Do not bring the nozzle tip close to
boots (rubber or resin manufactured
cover), connectors or the following
parts. The parts may be damaged if
they come into contact with high-pres-
sure water.
• Traction related parts
•Suspension parts
•Steering parts
• Brake parts
●Keep the cleaning nozzle at least 11.9
in. (30 cm) away from the vehicle
body. Otherwise resin section, such as
moldings and bumpers, may be
deformed and damaged. Also, do not
continuously hold the nozzle in the
same place.
●Do not spray the lower part of the
windshield continuously.
If water enters the air conditioning sys-
tem intake located near the lower part of
the windshield, the air conditioning sys-
tem may not oper ate correctly.
●Do not wash the underside of the vehi-
cle using a high pressure car washer.
●Do not point the nozzle of a high pres-
sure washer at the areas shown in the
illustration, as high pressure water may
damage the oil coolers.
■Hood vent
When washing the vehicle, do not allow a
large amount of wate r to enter the hood
vent at once, such as when using a
bucket, etc. or point the nozzle of a high
pressure washer at the hood vent.
Water may get inside the engine com-
partment and affect the engine and other
components.