LEXUS RCF 2019 Owners Manual

241
4
Driving
RC F_U 4-4. Refueling
●
Close both side doors and windows, and turn the engine switch off.●
Confirm the type of fuel. ■
Fuel types
 P. 554 ■
Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your vehi cle has a fuel tank opening that only accom-
modates the specia l nozzle on unleaded fuel pumps.
Opening the fuel tank cap Perform the following steps to open the fuel tank cap:
Before refueling the vehicle
WARNING ■
When refueling the vehicle
Observe the following precautions while refueling the vehicle. Failure to do so may
result in death or serious injury. ●
After exiting the vehicle and before opening the fuel door, touch an unpainted metal
surface to discharge any static electricity. It is important to discha rge static electricity
before refueling because sparks resulting fr om static electricity can cause fuel vapors
to ignite while refueling. ●
Always hold the grips on the fuel tank cap and turn it slowly to remove it.
A whooshing sound may be heard when the fu el tank cap is loosened. Wait until the
sound cannot be heard before fully removing the cap. In hot weather, pressurized fuel
may spray out the filler neck and cause injury.●
Do not allow anyone that has not discharged static electricity from their body to come
close to an open fuel tank. ●
Do not inhale vaporized fuel.
Fuel contains substances th at are harmful if inhaled.●
Do not smoke while refueling the vehicle.
Doing so may cause the fuel to ignite and cause a fire. ●
Do not return to the vehicle or touch any pe rson or object that is statically charged.
This may cause static electricity to build up, resulting in a possible ignition hazard.■
When refueling
Observe the following precautions to prevent fuel overflowing from the fuel tank: ●
Securely insert the fuel nozz le into the fuel filler neck.●
Stop filling the tank after the fuel nozzle automatically clicks off.●
Do not top off the fuel tank.

242 4-4. Refueling
RC F_U NOTICE ■
Refueling
Do not spill fuel during refueling.
Doing so may damage the vehicle, such as causing the emission control system to
operate abnormally or damaging fuel system components or the vehicle’s painted sur-
face.

2434-4. Refueling
4
Driving
RC F_U With the doors unlocked, press the
center of the rear edge of the fuel
filler door. Push until you hear a click and take your
hand away to slightly open the fuel filler
door. Then open the door fully by hand.
Turn the fuel tank cap slowly and
remove it, then put it into the holder
on the fuel filler door. ■
If the fuel filler door cannot be openedOpening the fuel tank cap 1
2
Remove the cover inside the trunk and pull the
lever to open the fuel fi ller door if it cannot be
opened by pressing the rear edge of the fuel
filler door with the doors unlocked.

244 4-4. Refueling
RC F_U After refueling, turn the fuel tank cap
until you hear a click. Once the cap
is released, it will turn slightly in the
opposite direction.
Close the fuel filler door, and press
the center of the rear edge of the
fuel filler door until you hear a click. When you lock the doors, the fuel filler
door will also lock. ■
When closing the fuel filler door
Do not lock the doors before closing the fuel filler door, as the fu el filler door cannot be
closed if the doors are locked. If the doors are locked and the fuel filler door cannot be
closed, unlock the doors and then close the fuel filler door. ■
Fuel filler door lock condition
The fuel filler door may not be locked even when the vehicle’ s doors are locked in the fol-
lowing situations: ●
When operating the door lock button inside the vehicle●
When the automatic door lock ing system is operated (  P. 148)Closing the fuel tank cap 1
2
WARNING ■
When replacing the fuel tank cap
Do not use anything but a genuine Lexus fuel tank cap designed for your vehicle. Doing
so may cause a fire or other incident whic h may result in death or serious injury.

245
4
Driving
RC F_U 4-5. Using the driving support systems
◆ PCS (Pre-Collision System)
 P. 250
◆ LDA (Lane Departure Alert with steering control)
 P. 261
◆ Automatic High Beam
 P. 228
◆ Dynamic radar cruise control
 P. 268Lexus Safety System+ The Lexus Safety System+ consists of the following drive assist systems and
contributes to a safe and comfo rtable driving experience:
WARNING ■
Lexus Safety System+
The Lexus Safety System+ is designed to operate under the assumption that the driver
will drive safely, and is design ed to help reduce the impa ct to the occupants and the
vehicle in the case of a collision or assist the driver in normal driving conditions.
As there is a limit to the degree of reco gnition accuracy and control performance that
this system can provide, do not overly rely on this system. The driver is always responsi-
ble for paying attention to the vehicl e's surroundings and driving safely.

246 4-5. Using the driving support systems
RC F_U The pre-collision system is equipped with a sophisticated computer that will
record certain data, such as:
• Accelerator status
•Brake status
• Vehicle speed
• Operation status of the pre-collision system functions
• Information (such as the distance an d relative speed between your vehicle
and the vehicle ahead or other objects)
• Images from the camera sensor (available only when the pre-collision braking
function or the pre-collision brake assist function was operating)
The pre-collision system does not record co nversations, sounds or images of the
inside of the vehicle. ●
Data usage
Lexus may use the data recorded in this computer to diagnose malfunctions,
conduct research and develo pment, and improve quality.
Lexus will not disclose the recorded data to a third party except:
• With the consent of the vehicle owner or with the consent of the lessee if
the vehicle is leased
• In response to an official request by the police, a court of law or a govern-
ment agency
• For use by Lexus in a lawsuit
• For research purposes where the data is not tied to a specific vehicle or
vehicle owner●
Recorded images can be erased using a specialized device.
The image recording function can be disa bled. However, if the function is dis-
abled, data from when the pre-collision system operates will not be available.Vehicle data recording

2474-5. Using the driving support systems
4
Driving
RC F_U Two types of sensors, located behind the front grille and windsh ield, detect infor-
mation necessary to operate the drive assist systems.
Radar sensor
Camera sensorSensors 1
2
WARNING ■
To avoid malfunction of the radar sensor
Observe the following precautions.
Otherwise, the radar sensor may not operat e properly, possibly leading to an accident
resulting in death or serious injury. ●
Keep the radar sensor and front grille emblem clean at all times.
●
Do not attach accessories, stickers (includi ng transparent sticke rs) or other items to
the radar sensor, front grille emblem or surrounding area. ●
Do not subject the radar sensor or su rrounding area to a strong impact.
If the radar sensor, front grille, or front bumper has been subjected to a strong impact,
have the vehicle inspected by your Lexus dealer. ●
Do not disassemble the radar sensor. ●
Do not modify or paint the radar sensor, front grille emblem or surrounding area. ●
If the radar sensor, front grille, or front bumper needs to be removed and installed, or
replaced, contact your Lexus dealer. Radar sensor
Front grille emblem
If the front of the rada r sensor or the front or
back of the front grille emblem is dirty or
covered with water droplets, snow, etc., clean
it.
Clean the radar sensor and front grille
emblem with a soft cloth so you do not mark
or damage them. 1
2

248 4-5. Using the driving support systems
RC F_U WARNING ■
To avoid malfunction of the camera sensor
Observe the following precautions.
Otherwise, the camera sensor may not oper ate properly, possibly leading to an acci-
dent resulting in deat h or serious injury.●
Keep the windshield clean at all times.
• If the windshield is dirty or covered with an oily film, water droplets, snow, etc.,
clear the windshield.
• If a glass coating agent is applied to the wi ndshield, it will still be necessary to use
the windshield wipers to remove water droplets, etc. from the area of the wind-
shield in front of the camera sensor.
• If the inner side of the windshield where th e camera sensor is installed is dirty, con-
tact your Lexus dealer.
●
If the part of the windshield in front of the camera sensor is fogged up or covered with
condensation or ice, use the windshield de fogger to remove the fog, condensation or
ice. (  P. 338)●
If water droplets cannot be properly removed from the area of the windshield in front
of the camera sensor by th e windshield wipers, replace the wiper insert or wiper
blade.
If the wiper inserts or wiper blades need to be replaced, contact your Lexus dealer.●
Do not attach objects, such as stickers, trans-
parent stickers, and so forth, to the outer side
of the windshield in front of the camera sensor
(shaded area in the illustration).
A: From the top of the windshield to approxi-
mately 0.4 in. (1 cm) below the bottom of the
camera sensor
B: Approximately 7.9 in. (20 cm) (Approxi-
mately 4.0 in. [10 cm] to the right and left
from the center of the camera sensor)

2494-5. Using the driving support systems
4
Driving
RC F_U WARNING ●
Do not attach window tinting to the windshield. ●
Replace the windshield if it is damaged or cracked.
If the windshield needs to be re placed, contact your Lexus dealer.●
Do not get the camera sensor wet. ●
Do not allow bright lights to shine into the camera sensor.●
Do not dirty or damage the camera sensor.
When cleaning the inside of the windshield , do not allow glass cleaner to contact the
lens. Also, do not touch the lens.
If the lens is dirty or damaged, contact your Lexus dealer. ●
Do not subject the camera sensor to a strong impact. ●
Do not change the installation position or direction of the camera sensor or remove it.●
Do not disassemble the camera sensor. ●
Do not modify any components of the vehi cle around the camera sensor (inside rear
view mirror, et c.) or ceiling.●
Do not attach any accessories that may obst ruct the camera sensor to the hood, front
grille or front bumper. Contact your Lexus dealer for details.●
If a surfboard or other long object is to be mounted on the roof, ma ke sure that it will
not obstruct the camera sensor. ●
Do not modify the head lights or other lights.

250 4-5. Using the driving support systems
RC F_UPCS (Pre-Collision System) The pre-collision system uses a radar sensor and camera sensor to detect
vehicles and pedestrians in front of yo ur vehicle. When the system determines
that the possibility of a frontal collision with a vehicle or pedestrian is high, a
warning operates to urge the driver to take evasive action and the potential
brake pressure is increased to help the driver avoid the collision. If the system
determines that the possibility of a fr ontal collision with a vehicle or pedes-
trian is extremely high, the brakes are automatically applied to help avoid the
collision or help reduce the impact of the collision.
The pre-collision system can be disabled/enabled and the warning timing can
be changed. (  P. 254)