2019 LEXUS RCF fuel

304 4-5. Using the driving support systems
RC F_U 
RC F
Normal mode/Custom mode
Normal mode and custom mode are se lected 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 se lected, 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 ch anged on the drive mode customiza-
tion display of the Center Display.
(Displaying the drive mode customization display:  P. 575)1

3054-5. Using the driving support systems
4
Driving
RC F_U Eco drive mode
Helps the driver accelerate in an eco-fr iendly manner and improve fuel econ-
omy through moderate throttle charact eristics 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 tu rned 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 controlle d to suit sporty driving, making this
mode is suitable for when agile drivin g 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
Eco2
3

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 (veh icles with a 10.3-inch display)
When the driving mode is changed, the sele cted driving mode will be temporarily dis-
played on the side display. (  P. 331)

3315-1. Using the air conditioning system
5
Interior features
RC F_U ■
Full screen display
The following functions can be displayed full screen:
• Initial screen
•“Menu” screen (  P. 330)
• Map screen
*
* : Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MAN-
UAL”.■
Split-screen display
Different information can be displayed on the left and right of the screen. For
example, audio screen can be displa yed and operated while the fuel con-
sumption information screen is being disp layed. The large screen on the left of
the display is called the main display, and the small screen to the right is called
the side display.10.3-inch display 
 : If equipped10.3-inch display overview

3415-1. Using the air conditioning system
5
Interior features
RC F_U ■
Registering air conditioning settings to elec tronic keys (vehicles with driving position
memory) ●
Unlocking the vehicle using an electronic ke y and turning the engine switch to IGNI-
TION ON mode will recall that key's re gistered air conditioning settings. ●
When the engine switch is tu rned off, the current air cond itioning settings will automat-
ically be registered to the electronic key that was used to unlock the vehicle. ●
The system may not operate correctly if more th an one electronic key is in the vicinity or
if the smart access system with push-button start is used to unlock a passenger door. ●
The doors that can recall the air conditioning setting* when unlocked using the smart
access system with push-button start can be changed. For details, contact your Lexus
dealer.
*: The doors that can recall the driving posi tion memory are change d at the same time.■
Using automatic mode
Fan speed is adjusted automatically according to the temperature setting and the ambi-
ent conditions.
Therefore, the fan may stop for a while until wa rm or cool air is ready to flow immediately
after is pressed or “AUTO” is selected. ■
Using the voice command system
Air conditioning system can be operated using voic e commands. For details, refer to the
“NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”. ■
Fogging up of the windows
The windows will easily fog up when the hu midity in the vehicle is high. Turning
(“A/C”) on will dehumidify the air from the outlets and defog the wi ndshield effectively.●
If you turn (“A/C”) off, the windows may fog up more easily.●
The windows may fog up if the recirculated air mode is used. ■
Outside/recirculated air mode ●
When driving on dusty roads such as tunnels or in heavy traffic, set the outside/recircu-
lated air mode button to the recirculated air mode. This is effective in preventing out-
side air from enteri ng the vehicle interior. During cooling operation, setting the
recirculated air mode will also cool the vehicle interior effectively. ●
Outside/recirculated air mode may automa tically switch depending on the tempera-
ture setting or the inside temperature. ■
When the outside temperature exceeds 75  F (24  C) and the air conditioning system
is on ●
In order to reduce the air co nditioning power consumption, the air conditioning system
may switch to recirculated air mode automa tically. This may also reduce fuel consump-
tion. ●
Recirculated air mode is selected as a defaul t mode when the engine switch is turned to
IGNITION ON mode. ●
It is possible to switch to outside air mode at any time by pressing .

342 5-1. Using the air conditioning system
RC F_U ■
Automatic mode for air intake control
In automatic mode, the system detects ex haust gas and other pollutants and auto-
matically switches between outside air and recirculated air modes.
When the dehumidification function is off, and the fan is operating, turning automatic
mode on will activate the dehumidification function. ■
Operation of the air conditioning system in Eco drive mode
In Eco drive mode, the air conditioning system is controlled as follows to prioritize fuel
efficiency: ●
Engine speed and compressor operation controlled to restrict heating/cooling capac-
ity ●
Fan speed restricted when automatic mode is selected
To improve air conditioning performanc e, perform the foll owing operations:●
Adjust the fan speed ●
Turn off Eco drive mode ■
When the outside temperature falls to nearly 32  F (0  C)
The dehumidification function may not oper ate even when is pressed or “A/C” is
selected. ■
Ventilation and air conditioning odors ●
To let fresh air in, set the air conditioning system to the outside air mode. ●
During use, various odors from inside and outside the vehicle may enter into and accu-
mulate in the air conditioning system. This may then cause odor to be emitted from the
vents. ●
To reduce potential odors from occurring:
• It is recommended that the air conditioning system be set to outside air mode prior
to turning the vehicle off.
• The start timing of the blower may be dela yed for a short period of time immediately
after the air conditioning system is started in automatic mode.■
Air conditioning filter
 P. 425 ■
Customization
Settings (e.g. A/C Auto switch operation) can be changed.
(Customizable features:  P. 575)

3735-4. Using the other interior features
RC F_U 5
Interior features ■
Automatic Collision Notification
In case of either airbag deployment or severe rear-end collision, the system is
designed to automatically call the re sponse center. The responding agent
receives the vehicle’s location and attempts to speak with the vehicle occu-
pants to assess the level of emergency. If the occupants are unable to commu-
nicate, the agent automatically treats the call as an emergency, contacts the
nearest emergency services provider to describe the situation, and requests
that assistance be sent to the location. ■
Stolen Vehicle Location
If your vehicle is stolen, Safety Conn ect can work with local authorities to
assist them in locating and recovering the vehicle. After filing a police report,
call the Safety Connect response ce nter at 1-800-25-LEXUS (1-800-255-
3987) in the United Stat es, 1-877-539-8777 in Pu erto Rico or 1-800-265-
3987 in Canada, and follow the prompts for Safety Connect to initiate this
service.
In addition to assisting law enforcemen t with recovery of a stolen vehicle,
Safety-Connect-equipped vehicle locatio n data may, under certain circum-
stances, be shared with third parties to locate your vehicle. Further informa-
tion is available at Lexus.com. ■
Emergency Assistance Button (“SOS”)
In the event of an emergency on the ro ad, push the “SOS” button to reach the
Safety Connect response center. Th e answering agent will determine your
vehicle’s location, assess the emergency, and dispatch the necessary assis-
tance required. If you accidentally press the “SOS” button, tell the response-center agent that you
are not experiencing an emergency.■
Enhanced Roadside Assistance
Enhanced Roadside Assistance adds GP S data to the already included war-
ranty-based Lexus roadside service.
Subscribers can press the “SOS” button to reach a Safety Connect response-
center agent, who can help with a wide range of needs, such as: towing, flat
tire, fuel delivery, etc. For a descript ion of the Roadside Assistance services
and their limitations, please see the Safety Connect Terms and Conditions,
which are available at Lexus.com.Safety Connect services

3776-1. Maintenance and care
6
Maintenance and care
RC F_U ■
Automatic car washes (vehicles without CFRP parts) ●
Fold the mirrors before washing the vehicle. Start washing from the front of the vehicle.
Make sure to extend the mirrors before driving. ●
RC F: Wash the vehicle with the active rear wing retracted. If the vehicle is washed with
the active rear wing raised, depending on the type of automatic car wash, the brushes
of the automatic car wash may become stuck on the active rear wing. In this case, the
active rear wing may not be washed very well or may even be scratched or damaged.●
Brushes used in automatic car washes may scratch the vehicle body and damage the
paint. ■
Automatic car washes (vehicles with CFRP parts)
Do not use automatic car washes as they may scratch the CFRP parts and damage the
paint. ■
High pressure car washes ●
Do not allow the nozzles of the car wash to come within close proximity of the windows. ●
Before using the car wash, check that the fuel filler door on your vehicle is closed prop-
erly. ■
When using a car wash
If the door handle becomes wet while the electronic key is within the effective range, the
door may lock and unlock repeatedly. In that case, follow the following correction proce-
dures to wash the vehicle: ●
Place the key in a position 6 ft. (2 m) or more separate from the vehicle while the vehi-
cle is being washed. (Take care to ensure that the key is not stolen.) ●
Set the electronic key to battery-saving mo de to disable the sm art access system with
push-button start. (  P. 158)■
Aluminum wheels (vehicles without matte black painted wheels) ●
Remove any dirt immediately by using a neutral detergent. ●
Wash detergent off with water immediately after use. ●
To protect the paint from damage, make sure to observe the following precautions.
• Do not use acidic, alkaline or abrasive detergent
• Do not use hard brushes
• Do not use detergent on the wheels when they are hot, such as after driving or park-
ing in hot weather■
Aluminum wheels (vehicles with matte black painted wheels)
As matte black painted wheels require differ ent cleaning methods than conventional alu-
minum wheels. For details, consult your Lexus dealer. ●
Remove dirt using water. If the wheels are excessively dirty, use a sponge or soft cloth
dampened with a diluted neutral detergent to remove the dirt. ●
When using detergent, make sure to rinse it off with water immediately. Then use a soft
cloth to wipe off the water. ●
To prevent the matte black paint from being damaged, make sure to observe the follow-
ing precautions:
• Do not scrub or polish the whee ls using a brush or dry cloth.
• Do not use any wheel coatings or abrasive detergents.
• When using an automatic car wash, disable/do not select the wheel brush function
(if such an option is available).
• Do not use a high pressure pre ssure washer or steam cleaner.
• Do not use detergent on the wheels when they are hot, such as after driving or park-
ing in hot weather.