2018 LEXUS RCF engine

2214-2. Driving procedures
4
Driving
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)The lever will return to its original position immediately after operation.
Right turn
Lane change to the right (move the
lever partway and release it) The right hand signals will flash 3 times.
Lane change to the left (move the
lever partway and release it) The left hand signals will flash 3 times.
Left turn
■
If the turn signals do not stop flashing af ter turning left or right, or if you want
to stop them flashing
Operate the lever in the opposite direct ion to either position or . If you
move the lever to either position or , the selected turn signals will flash. ■
Turn signals can be operated when
The engine switch is in IGNITION ON mode. ■
If the indicator flashes faster than usual
Check that a light bulb in the front or rear turn signal lights has not burned out.■
If the turn signals stop flashing befo re a lane change has been performed
Operate the lever again. ■
Customization
The number of times the turn signals flas h during a lane change can be changed.
(Customizable feature  P. 569)Turn signal lever Operating instructions 1
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4
2 3
1 4

2234-2. Driving procedures
4
Driving
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)Louder
Lower The indicator comes on when the ASC
system is on.
When the dial is turned to the lowest
volume, the ASC system will be turned
off and the indicator will go off. ■
The ASC system can be operated when
The driving mode select switch is in normal mode or sport mode. (  P. 301)■
Temporary cancelation of the ASC system functions
The ASC system may be temporarily cancel ed depending on the driving conditions,
such as when the tires slip due to sudden acceleration.ASC (Active Sound Control) 
(RC350/RC300)
 : If equippedThe ASC system is an electronic sound system that generates engine sound,
conveying the kinetic situations of the vehicle’s acceleration and deceleration
to the driver through the speake rs inside the instrument panel.
The vehicle’s response to the driver’s acceleration behavior and shift opera-
tions are also conveyed in sound.
When sport mode is selected, the sound conveyed to the driver will be louder.
Controlling volume 1
2

224 4-2. Driving procedures
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)■
The ASC system can be operated when
The driving mode select switch is in SPORT S+ mode. (  P. 301)
ASC (Active Sound Control) 
(RC F)
 : If equippedThe ASC system sonically emphasizes the vehicle’s response to the driver’s
operation of the accelerator pedal and sh ift lever or paddle shift switches. The
dynamic engine sound enabled by this system helps the driver further enjoy
the feeling of unity with the vehicle, particularly when driving in M mode.
(  P. 216)

225
4
Driving
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U) 4-3. Operating the lights and wipers
Turning the end of the lever turns on the lights as follows:
Headlight switch The headlights can be operated manually or automatically.
Operating instructions U.S.A. Canada
The side marker, parking, tail,
license plate, instrument panel
lights, and daytime running
lights (  P. 226) turn on.
The headlights and all lights
listed above (except daytime
running lights) turn on.
The headlights, daytime run-
ning lights (  P. 226) and all
the lights listed above turn on
and off automatically.
(When the engine switch is in
IGNITION ON mode.)
Off
The daytime running lights
turn on. (  P. 226) 1
2
3
4 (U.S.A.)
(Canada)

226 4-3. Operating the lights and wipers
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)With the headlights on, push the
lever away from you to turn on the
high beams. Pull the lever toward you to the center
position to turn the high beams off.
Pull the lever toward you and release
it to flash the high beams once. You can flash the high beams with the
headlights on or off. ■
Daytime running light system ●
The daytime running lights illuminate using th e same lights as the parking lights and illu-
minate brighter than the parking lights. ●
To make your vehicle more visible to other drivers during daytime driving, the daytime
running lights turn on automatically when a ll of the following conditions are met. (The
daytime running lights are not designed for use at night.)
• The engine is running
• The parking brake is released
• The headlight switch is in the (Canada only), or
* position
* : When the surroundings are bright
The daytime running lights remain on after they illuminate, even if the parking brake is set
again. ●
For the U.S.A.: Daytime running lights can be turned off by operating the switch.●
Compared to turning on the headlights, the daytime running light system offers greater
durability and consumes less electricity, so it can help improve fuel economy.●
Vehicles with LED front turn signal lights: If a turn signal light is in use, the daytime run-
ning light, on the same side, is turned off. For emergency flashers, both are turned off. ■
Headlight control sensorTurning on the high beam headlights 1
2
The sensor may not function properly if an
object is placed on the sensor, or anything that
blocks the sensor is affixed to the windshield.
Doing so interferes with the sensor detecting
the level of ambient li ght and may cause the
automatic headlight system to malfunction.

2274-3. Operating the lights and wipers
4
Driving
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)■
Automatic light off system
When the light switch is in , or : The headlights and tail lights turn off 30
seconds after the engine switch is turned to ACCESSORY mode or turned off and a
door is opened and all of the doors and trun k are closed. (The lights turn off immediately
if on the key is pr essed twice after both side doors are closed.)
To turn the lights on again, turn the engine switch to IGNITION ON mode, or turn the
light switch off once and then back to or .
If any of the doors or trunk lid is left open , the lights automatically turn off after 20 min-
utes. ■
Automatic headlight leveling system
The level of the headlights is automatically adjusted accordi ng to the number of passen-
gers and the loading condition of the vehicle to ensure that the headlights do not inter-
fere with other road users. ■
Light reminder buzzer
A buzzer sounds when the engine switch is turned off or turned to ACCESSORY mode
and the driver’s door is opened while the lights are turned on. ■
Customization
Settings (e.g. light sensor se nsitivity) can be changed.
(Customizable features:  P. 569)
NOTICE ■
To prevent battery discharge
Do not leave the lights on longer than ne cessary when the engine is not running.

2314-3. Operating the lights and wipers
4
Driving
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)●
Bicycles or similar vehicles may not be detected. ●
In the following situations the system may not be able to correctly detect the surround-
ing brightness level. This may cause the lo w beams to remain on or the high beams to
flash or dazzle pedestrians or vehicles ahead. In such a case, it is necessary to manually
switch between the high and low beams.
• When driving in inclement weather (heavy ra in, snow, fog, sandstorms, etc.)
• When the windshield is obscured by fog, mist, ice, dirt, etc.
• When the windshield is cracked or damaged
• When the camera sensor is deformed or dirty
• When the temperature of the camera sensor is extremely high
• When the surrounding brightness level is equal to that of he adlights, tail lights or fog
lights
• When headlights or tail lights of vehicles ahead are turned off, dirty, changing color,
or not aimed properly
• When the vehicle is hit by water, snow, dust, etc. from a preceding vehicle
• When driving through an area of intermittently changi ng brightness and darkness
• When frequently and repeated ly driving ascendin g/descending roads, or roads with
rough, bumpy or uneven surfaces (such as stone-paved roads, gravel roads, etc.)
• When frequently and repeatedly taking curves or driving on a winding road
• When there is a highly reflective object ahea d of the vehicle, such as a sign or mirror
• When the back of a preceding vehicle is highly reflective, such as a container on a
truck
• When the vehicle's headlights are damaged or dirty, or are not aimed properly
• When the vehicle is listing or titling due to a flat tire, a trailer being towed, etc.
• When the headlights are changed between the high beams and low beams repeat-
edly in an abnormal manner
• When the driver believes that the high beams may be flashing or dazzling pedestri-
ans or other drivers■
Temporarily lowering sensor sensitivity
The sensitivity of the sensor can be temporarily lowered.
Turn the engine switch off while the following conditions are met.
• The headlight switch is in or .
• The headlight switch lever is in high beam position.
• Automatic High Beam switch is on.
Turn the engine switch to IGNITION ON mode.
Within 30 seconds after , re peat pulling the he adlight switch lever to the original
position then pushing it to the high beam position quickly 10 times, then leave the lever
in high beam position.
If the sensitivity is changed, the Automatic High Beam indicator is turn on and off 3
times.
Automatic High Beam (head lights) may turn on even the vehicle is stopped.1
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234 4-3. Operating the lights and wipers
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)Wiper intervals can be adjusted when intermittent operation is selected.
Increases the intermittent windshield
wiper frequency
Decreases the intermittent wind-
shield wiper frequency
Washer/wiper dual operation The wipers will automatically operate a
couple of times afte r the washer squirts.
Vehicles with headlight cleaners: When
the engine switch is in IGNITION ON
mode and the headlights are on, if the
lever is pulled, th e headlight cleaners
will operate once. After this, the head-
light cleaners will operate every 5th
time the lever is pulled. 5
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