LEXUS RC300 2021 Owners Manual

1414-2. Driving procedures
4
Driving
*:If equipped
1Louder
2 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.199)
■Temporary cancelation of the ASC sys-
tem functions
The ASC system may be temporarily can-
celed depending on the driving conditions,
such as when the tires slip due to sudden
acceleration.
ASC (Active Sound Con-
trol)*
The 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 throug h the speakers
inside the instrument panel.
The vehicle’s response to the
driver’s accelerati on behavior and
shift operations are also conveyed
in sound.
When sport mode is selected, the
sound conveyed to the driver will be
louder.
Controlling volume

1424-3. Operating the lights and wipers
4-3.Operating the lights and wipers
Operating the switch turns on
the lights as follows:U.S.A.
Canada
1 The side marker, parking, tail,
license plate, instrument panel
lights, and daytime running lights
( P.142) turn on.
2 The headlights and all lights
listed above (except daytime run-
ning lights) turn on.
3 The headlights, daytime run-
ning lights ( P.142) and all the lights listed above turn on and off
automatically. (When the engine
switch is in IGNITION ON mode.)
4 (U.S.A.) Off / (Canada)
The daytime running lights turn on.
( P.142)■Daytime running light system
●The daytime running lights illuminate
using the same lights as the parking lights
and illuminate brighter than the parking
lights.
●To make your vehicle more visible to
other drivers during daytime driving, the
daytime running lights turn on automati-
cally when all 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 (Can-
ada 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.
■Headlight control sensor
The sensor may not function properly if an
object is placed on the sensor, or anything
Headlight switch
The headlights can be operated
manually or automatically.
Operating instructions
A
B

1434-3. Operating the lights and wipers
4
Driving
that blocks the sensor is affixed to the wind-
shield.
Doing so interferes with the sensor detect-
ing the level of ambient light and may cause
the automatic headlight system to malfunc-
tion.
■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 trunk are closed. (The lights turn off
immediately if on the key is pressed
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
minutes.
■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.
■Automatic headlight leveling system
The level of the headlights is automatically
adjusted according to the number of pas-
sengers and the loading condition of the
vehicle to ensure that the headlights do not
interfere with other road users.
■Customization
Some functions can be customized.
(  P.351)
1 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.
2Pull 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.
When the steering wheel or turn
signal lever is operated while the
headlights are on (low beam) and
the vehicle speed is 19 mph (30
km/h) or lower, a cornering light will
turn on and light up the direction of
movement of the vehicle. The cor-
nering lights are designed to ensure
excellent visibility when making a
turn at an intersection.
 When the shift position is in R while
the headlights are on (low beam),
both cornering lights will turn on.
This is designed to enhance visibility
when parking.
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than
necessary when the engine is not run-
ning.
Turning on the high beam head-
lights
Cornering lights

1444-3. Operating the lights and wipers
■Cornering lights
When the cornering lights are on for more
than 30 minutes, they will turn off automati-
cally.
1 Press the Automatic High Beam
switch.
2 Turn the headlight switch to the
or position.
The Automatic High Beam indicator will
AHB (Automatic High
Beam)
The Automatic High Beam uses a
camera sensor located behind the
upper portion of the windshield to
assess the brightness of the lights of
vehicles ahead, streetlights, etc.,
and automatically turns the high
beams on or off as necessary.
WARNING
■Limitations of the Automatic High
Beam
Do not overly rely on the Automatic High
Beam. Always drive safely, taking care to
observe your surroundings and turning
the high beams on or off manually if nec-
essary.
■To prevent incorrect operation of the
Automatic High Beam system
Do not overload the vehicle.
Activating the Automatic High
Beam

1454-3. Operating the lights and wipers
4
Driving
come on when the system is operating.
■Conditions to turn the high beams on/off
automatically
●When all of the following conditions are
met, the high beams will be turned on
automatically (after approximately 1 sec-
ond):
• The vehicle speed is approximately 21 mph (34 km/h) or more.
• The area ahead of the vehicle is dark.
• There are no vehicles ahead with head- lights or tail lights turned on.
• There are few streetlights on the road ahead.
●If any of the following conditions is met,
the high beams will turn off automatically:
• The vehicle speed is below approxi-
mately 17 mph (27 km/h).
• The area ahead of the vehicle is not dark.
• Vehicles ahead have their headlights or tail lights turned on.
• There are many streetlights on the road ahead.
■Camera sensor detection information
●The high beams may not be automatically
turned off in the following situations:
• When a vehicle suddenly appears from around a curve
• When the vehicle is cut in front of by
another vehicle
• When vehicles ahead cannot be detected due to repe ated curves, road
dividers or roadside trees
• When vehicles ahead appear in a far- away lane on a wide road
• When the lights of vehicles ahead are not
on
●The high beams may be turned off if a
vehicle ahead that is using fog lights with- out its headlights turned on is detected.
●House lights, street lig
hts, traffic signals,
and illuminated billboards or signs and
other reflective objects may cause the
high beams to change to the low beams,
or the low beams to remain on.
●The following factors may affect the
amount of time taken for the high beams
to turn on or off:
• The brightness of the headlights, fog
lights, and tail lights of vehicles ahead
• The movement and direction of vehicles ahead
• When a vehicle ahead only has opera- tional lights on one side
• When a vehicle ahead is a two-wheeled
vehicle
• The condition of the road (gradient, curve, condition of th e road surface, etc.)
• The number of passengers and amount of luggage in the vehicle
●The high beams may turn on or off unex-
pectedly.
●Bicycles or similar vehicles may not be
detected.
●In the following situations the system may
not be able to correctly detect the sur-
rounding brightness level. This may cause
the low beams to remain on or the high
beams to flash or dazzle pedestrians or
vehicles ahead. In such a case, it is neces-
sary to manually swit ch between the high
and low beams.
• When driving in inclement weather
(heavy rain, snow, fo g, sandstorms, etc.)
• When the windshield is obscured by fog, mist, ice, dirt, etc.
• When the windshield is cracked or dam- aged
• 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 headlights, 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 inter-

1464-3. Operating the lights and wipers
mittently changing brightness and dark-
ness
• When frequently and repeatedly driving
ascending/descending roads, or roads
with rough, bumpy or uneven surfaces
(such as stone-paved ro ads, gravel roads,
etc.)
• When frequently and repeatedly taking curves or driving on a winding road
• When there is a highly reflective object ahead 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 dam- aged 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
repeatedly in an abnormal manner
• When the driver believes that the high beams may be flashing or dazzling
pedestrians or other drivers
■Temporarily lowering sensor sensitivity
The sensitivity of the sensor can be tempo-
rarily lowered.
1 Turn the engine switch off while the fol-
lowing conditions are met.
●The headlight switch is in or .
●The headlight switch le ver is in the origi-
nal position.
●Automatic High Beam switch is on.
2 Turn the engine switch to IGNITION
ON mode.
3 Within 30 seconds after 2, repeat
pushing the headlight switch lever to the
high beam position then pulling it to the
original position quickly 10 times, then
leave the lever in original position.
4 If the sensitivity is changed, the Auto-
matic High Beam indicator is turn on
and off 3 times.
■Switching to the high beams
Push the lever away from you.
The Automatic High Beam indicator will
turn off and the high beam indicator will
turn on.
Pull the lever to its original position to acti-
vate the Automatic High Beam system
again.
■Switching to the low beams
Press the Automatic High Beam
switch.
The Automatic High Beam indicator will
turn off.
Press the switch to activate the Automatic
High Beam system again.
■Temporarily switching to the low
beams
Pull the lever toward you and then
Turning the high beams on/off
manually

1474-3. Operating the lights and wipers
4
Driving
return it to its original position.
The high beams are on while the lever is
pulled toward you, however, after the lever
is returned to its original position, the low
beams remain on for a certain amount of
time. Afterwards, the Automatic High
Beam will be activated again.
■Temporarily switching to the low beams
It is recommended to switch to the low
beams when the high beam may cause
problems or distress to other drivers or
pedestrians nearby.
Operating the lever operates
the wipers or washer as follows. The
lever will return to its original position
after operation.
Intermittent windsh ield wipers with
interval adjuster
1 (U.S.A.) or (Canada)
Move the lever up by 2 levels
Windshield wipers and
washer
Operating the lever can use the
windshield wipers or the washer.
NOTICE
■When the windshield is dry
Do not use the wipers, as they may dam-
age the windshield.
Operating the wiper lever

1484-3. Operating the lights and wipers
2 Move the lever up by 1 level
3 (U.S.A.) or (Canada)
Move the lever down by 1 level
4 (U.S.A.) or (Canada)
Move the lever down by 2 levels
Depending on the operating state of
the wipers when the wiper lever is
operated, the wipers will operate as
follows.
• Current wiper operation: Off
• Current wiper operation: Intermit- tent operation
• Current wiper operation: Low speed operation • Current wiper operation: High
speed operation
Wiper intervals can be adjusted when
intermittent operation is selected.
5 Increases the intermittent wind-
shield wiper frequency
6 Decreases the intermittent wind-
shield wiper frequency
Wiper lever oper-
ationWiper operation
or Temporary operation
Temporary operation
or Intermittent operation
or High speed operation
Wiper lever oper-ationWiper operation
or Off
Off
or Low speed operation
or High speed operation
Wiper lever oper- ationWiper operation
or Off
Intermittent operation
or High speed operation
or High speed operation
Wiper lever oper-ationWiper operation
or Off
Low speed operation
or No change
or No change

1494-3. Operating the lights and wipers
4
Driving
7 Washer/wiper dual opera-
tion
Pulling the lever operates the wipers and
washer.
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, the headlight cleaners will operate
once. After this, the headlight cleaners will
operate every 5th time the lever is pulled.
Rain-sensing windshield wipers
1 (U.S.A.) or (Canada) Move the lever up by 2 levels
2 Move the lever up by 1 level
3 (U.S.A.) or (Canada)
Move the lever down by 1 level
4 (U.S.A.) or (Canada)
Move the lever down by 2 levels
5 AUTO mode on/off switch
With AUTO mode selected, the wipers will
operate automatically when the sensor
detects falling rain. Th e system automati-
cally adjusts wiper timing in accordance
with rain volume and vehicle speed.
The AUTO mode indicator will turn on
when AUTO mode is selected.
Depending on the operating state of
the wipers when the wiper lever is
operated, the wipers will operate as
follows.
• Current wiper operation: Off
• Current wiper operation: Low
speed operation
Wiper lever oper- ationWiper operation
or Temporary operation
Temporary operation
or Low speed operation
or High speed operation
Wiper lever oper-ationWiper operation
or Off
Off
A

1504-3. Operating the lights and wipers
• Current wiper operation: High speed operation
• Current wiper operation: AUTO mode (Intermittent operation)
• Current wiper operation: AUTO mode (Continuously)
*1: After temporary operation, the mode will return to AUTO mode.
*2: AUTO mode will be canceled.
When AUTO mode is selected, the
sensor sensitivity can be adjusted by
turning the switch ring.
6 Increases the sensitivity
7 Decreases the sensitivity
8 Washer/wiper dual opera-
tion
Pulling the lever operates the wipers and
washer.
The wipers will automatically operate a
couple of times after the washer squirts.
or High speed operation
or High speed operation
Wiper lever oper- ationWiper operation
or Off
Low speed operation
or No change
or No change
Wiper lever oper-ationWiper operation
or Off
Temporary opera-
tion
*1
or Low speed opera-tion
*2
or High speed opera-
tion
*2
Wiper lever oper- ationWiper operation
or Off
No change
Wiper lever oper-ationWiper operation
or Low speed opera-
tion
*2
or High speed opera- tion
*2
Wiper lever oper- ationWiper operation