LEXUS RC F (2019 year). Instruction - part 19

302

4-5. Using the driving support systems

RC F_U



RC350/RC300 (vehicles with Adaptive Variable Suspension System)

Normal 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 “CUSTOM” indicator will be illuminated.

When Eco drive mode or sport mode is selected, pressing the switch changes the

driving mode to normal mode.

• Normal mode

Provides an optimal balance of fuel economy, quietness, and dynamic per-
formance. Suitable for city driving.

• Custom mode

Allows you to drive with the following functions set to your preferred set-
tings.
Custom mode settings can only be changed on the drive mode customiza-
tion display of the Center Display.
(Displaying the drive mode customization display:

P. 575)

303

4-5. Using the driving support systems

iving

RC F_U

Eco drive mode
Helps the driver accelerate in an eco-friendly manner and improve fuel econ-
omy through moderate throttle characteristics and by controlling the opera-
tion of the air conditioning system (heating/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.

Sport mode

• SPORT S mode

Controls the transmission and engine to provide quick, powerful accelera-
tion. 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

Helps to ensure steering performance and driving stability by simultane-
ously controlling the steering and suspension in addition to the transmis-
sion and engine. Suitable for sportier driving.

When in SPORT S mode, if the driving mode select switch is turned to the right,

the “SPORT S+” indicator will come on.

Function

Setting

Powertrain

Normal

Power

Eco

Chassis

Normal

Sport

Air conditioning system

Normal

Eco

304

4-5. Using the driving support systems

RC F_U



RC F

When Eco drive mode or sport mode is selected, pressing the switch changes the

driving mode to normal mode.

• Normal mode

Provides an optimal balance of fuel economy, quietness, and dynamic per-
formance. Suitable for city driving.

• Custom mode

P. 575)

305

4-5. Using the driving support systems

iving

RC F_U

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.

Sport mode

• SPORT S mode

Controls the transmission and engine to provide quick, powerful accelera-
tion. 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, suspension control and VDIM control, making it
suitable for powerful sporty driving.

When in SPORT S mode, if the driving mode select switch is turned to the right,

the “SPORT S+” indicator will come on.

Function

Setting

Powertrain

Normal

Power

Eco

Chassis

Normal

Sport

Air conditioning system

Normal

Eco

306

4-5. Using the driving support systems

RC F_U

■

Operation of the air conditioning system in Eco drive mode
Eco drive mode controls the heating/cooling operations and fan speed of the air condi-

tioning system to enhance fuel efficiency (

P. 333). To improve air conditioning perfor-

mance, adjust the fan speed or turn off Eco drive mode.

■

Automatic deactivation of sport mode and custom mode
If the engine switch is turned off after driving in sport mode or custom mode, the drive

mode will be changed to normal mode.

■

Driving mode pop-up display (vehicles with a 10.3-inch display)
When the driving mode is changed, the selected driving mode will be temporarily dis-

played on the side display. (

P. 331)

307

4-5. Using the driving support systems

iving

RC F_U

The RC F is equipped with an active rear wing that operates automatically while
the vehicle is being driven. This active rear wing enhances aerodynamic perfor-
mance, especially at high speeds, contributing to a more stable ride.
The active rear wing can be controlled using a switch.

Multi-information display (

P. 118)

Displays the status of the active rear

wing

Active rear wing switch

Operates the active rear wing manually

Indicator

Illuminates when the active rear wing is

raised and turns off when it is retracted

The active rear wing will operate automatically at the following speeds according
to the selected driving mode (

P. 301).

(Always observe the legal speed limit when driving on public roads.)

Active rear wing (RC F)

Features

Automatic operation

Driving mode

Down

Normal

Sport

Approximately 50 mph

(80 km/h)

Approximately 25 mph

(40 km/h)

Eco drive

Approximately 80 mph

(130 km/h)

Approximately 25 mph

(40 km/h)

308

4-5. Using the driving support systems

RC F_U

Operate the active rear wing switch to raise/retract the active rear wing manu-
ally. (The active rear wing retracts when it is raised and raises when retracted.)

■

Operation by switch

: Press and hold the switch until the indicator turns off. If the switch is released while the

active rear wing is moving, it will return to the raised position automatically.

■

The active rear wing can be operated when

●

The engine switch is in IGNITION ON mode.

●

The trunk is closed.

■

Conditions which stop the operation of the active rear wing
In the following situations operation of the active rear wing will stop:

●

The engine switch is turned off while the active rear wing is operating.

●

The trunk is opened while the active rear wing is operating.

●

The raising operation of the active rear wing is interrupted by an object, etc.

●

The active rear wing is operated in an unusual manner causing it to stop at an irregular

position.

In such cases, pressing the active rear wing switch will fully raise the active rear wing. Or,

begin driving the vehicle and the active rear wing will raise automatically when the vehi-

cle speed reaches 16 mph (25 km/h).

■

Restoring automatic operation after the active rear wing is operated manually
If the active rear wing is operated manually, automatic operation will resume according

to the vehicle speed.

■

When there is a malfunction in the system
A warning message will be displayed on the multi-information display. (

P. 478)

■

Customization
The active rear wing can be held at the raised position or retracted position.

(Customizable features:

P. 569)

Manual operation

Vehicle speed

Down

0 mph (0 km/h)

(vehicle stopped)

Press

Press and hold

Approximately 0 – 12 mph

(0 – 20 km/h)

Operation not possible

Approximately 12 – 80

mph (20 – 130 km/h)

Press

Approximately 80 mph

(130 km/h) or more

Operation not possible

309

4-5. Using the driving support systems

iving

RC F_U

WARNING

■

When manually operating the active rear wing
Observe the following precautions before operating the active rear wing. Failure to do

so may result in death or serious injury.

●

Ensure that the surrounding area is free of any objects that may come into contact

with or get caught on the active rear wing.

●

If there is a risk that an object may become caught on the active rear wing during

operation, stop operation immediately.

NOTICE

■

To prevent system damage

●

Do not apply pressure to the active rear wing when pushing or pulling the vehicle.

●

Do not lean on the active rear wing.

●

Do not attach any accessories or other objects to the active rear wing.

●

Do not modify or disassemble the active rear wing.

●

Do not subject the active rear wing to severe impact.

■

To prevent battery discharge
Do not operate the active rear wing repeatedly while the engine is turned off.

●

If there are people near the active rear wing,

make sure that there is no possibility of their

clothing, personal belongings or body parts

getting caught. Children especially should be

warned not to touch the active rear wing

while it is being operated.

310

4-5. Using the driving support systems

RC F_U

With the engine switch in IGNITION
ON mode, pressing the TVD switch
changes the TVD control mode.

The current TVD control mode will be

displayed on the meters.

STANDARD mode
This is the default mode and pro-
vides an optimum balance of driving
agility and stability.
SLALOM mode
This mode emphasizes enhanced
steering response.
TRACK mode
This mode emphasizes stability for
high speed sporty driving.

The multi-information display shows the distribution of driving force between the
right and left rear wheels. (

P. 118)

TVD (Torque Vectoring Differential)



: If equipped

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, pro-
viding an agile driving experience.

Changing TVD control modes

TVD control status on the multi-information display

311

4-5. Using the driving support systems

iving

RC F_U

■

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 STAN-

DARD mode.

■

Automatic disabling of the TVD system
If a malfunction is detected in the TVD system, a warning message will be displayed on

the multi-information display (

P. 474) and the TVD system will be disabled automati-

cally. 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 warning message will be displayed

on the multi-information display. (

P. 474)

WARNING

■

Cautions regarding the use of the system
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.

312

4-5. Using the driving support systems

RC F_U

◆

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 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

◆

Enhanced VSC (Enhanced Vehicle 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 performance.

◆

TRAC (Traction Control)

Helps to maintain drive power and prevent the drive wheels from spinning
when starting the vehicle or accelerating on slippery roads

◆

Hill-start assist control

Helps to prevent the vehicle from rolling backward when starting on an incline

◆

VGRS (Variable Gear Ratio Steering) (if equipped)

Adjusts the front wheel turning angle in accordance with the vehicle speed
and steering wheel movement

◆

DRS (Dynamic Rear Steering) (if equipped)

Contributes to the turning characteristics and responsiveness of the vehicle
by adjusting the rear wheel angle of the vehicle in accordance with steering
wheel movement.

Driving assist systems

To help enhance driving safety and performance, the following systems oper-
ate automatically in response to various driving situations. Be aware, however,
that these systems are supplementary and should not be relied upon too heav-
ily when operating the vehicle.

313

4-5. Using the driving support systems

iving

RC F_U

◆

EPS (Electric Power Steering)

Employs an electric motor to reduce the amount of effort needed to turn the
steering wheel

◆

Adaptive Variable Suspension System (if equipped)

By independently controlling the damping force of the 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 vehi-
cle posture. (

P. 302)

◆

LDH (Lexus Dynamic Handling system) (if equipped)

Provides integrated control of the VGRS, DRS and EPS. Contributes to turn-
ing characteristics at low speeds, responsiveness at medium speeds and
safety at high speeds by controlling the steering angle of the front and rear
wheels in accordance with the steering wheel operation and vehicle speed.

◆

VDIM (Vehicle Dynamics Integrated Management)

Provides integrated control of the ABS, brake assist, TRAC, VSC, hill-start
assist control, EPS, VGRS (if equipped) and DRS (if equipped) systems
Helps to maintain vehicle stability when swerving on slippery road surfaces by
controlling the brakes, engine output, steering assist, and if equipped with
VGRS, steering ratio

314

4-5. Using the driving support systems

RC F_U

The slip indicator light will flash while
the TRAC/VSC systems are operating.

If the vehicle gets stuck in mud, dirt or snow, the TRAC 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.



RC350/RC300

To turn the TRAC 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.

When the TRAC/VSC systems are operating

Disabling the TRAC system

315

4-5. Using the driving support systems

iving

RC F_U



RC F

To turn the TRAC system off, quickly

press and release

(

The “TRAC OFF” indicator light will
come on.

Press

(

) again to turn the

system back on.

■

Turning off both TRAC and VSC systems



RC350

/RC300

To turn the TRAC and VSC systems off, press and hold

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

again to turn the systems back on.



RC F

To turn the TRAC and VSC systems off, press and hold

(

) for more than

3 seconds.
The “TRAC OFF” indicator light and the VSC OFF indicator light will come on.

Press

(

) again to turn the systems back on.

: On vehicles with PCS (Pre-Collision System), pre-collision brake assist, pre-collision

braking, and steering control (performed through cooperative control of PCS and
LDH) (if equipped) will also be disabled. The pre-collision system warning light will
come on and a message will be displayed on the multi-information display. (

P. 460)

: On vehicles with PCS (Pre-Collision System), pre-collision brake assist and pre-

collision braking will also be disabled. The pre-collision system warning light will come
on and a message will be displayed on the multi-information display. (

P. 460)

316

4-5. Using the driving support systems

RC F_U

■

Expert mode (RC F)
When expert mode is selected, it is possible to drive in a more sporty manner than other

drive modes. Expert mode disables the TRAC and VSC systems but the engine and

brakes may be controlled depending on the vehicle behavior.

■

When the message is displayed on the multi-information display showing that TRAC

has been disabled even if

has not been pressed (RC350/RC300)

TRAC cannot be operated. Contact your Lexus dealer.

■

When the “TRAC OFF” indicator light comes on even if

(

) has not been

pressed (RC F)
TRAC cannot be operated. Contact your Lexus dealer.

■

VGRS is disabled when
VGRS may stop operating in the following situations.

In this event, the steering wheel may move from its straight forward position, but it will

return when the system restarts.

●

When the steering wheel is operated for an extended period of time while the vehicle is

stopped or is moving very slowly

(on vehicles with LDH, DRS is disabled together with VGRS)

●

When the steering wheel has been held fully to the left or right

The center position of the steering wheel may change when VGRS is disabled. However,

the position will return to normal after VGRS is reactivated.

■

When the battery is disconnected (vehicles with VGRS)
The steering wheel may move from its straight forward position, but this will be corrected

automatically when driving.

To select expert mode, press

(

)

when in SPORT S+ mode.
The “EXPERT” indicator will come on together

with the TRAC OFF and VSC OFF indicators.

To cancel expert mode, press

(

)

use the driving mode select switch to select a

driving mode other than SPORT S+ mode.

317

4-5. Using the driving support systems

iving

RC F_U

■

Sounds and vibrations caused by the ABS, brake assist, VSC, TRAC, hill-start assist

control and VGRS 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 sys-

tems.

●

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 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, VGRS and DRS 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, turning 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. However, when both TRAC/VSC systems are turned off, the systems

will not turn on even when vehicle speed increases.

■

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 normal

within 10 minutes.

■

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/backward 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.

Content .. 17 18 19 20 ..