lights LEXUS RC300 2019 Service Manual

2135-2. Using the air conditioning system
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5
Interior features
heated steering wheel is operating.
■Operation condition
The engine switch is in IGNITION ON
mode.
■Timer function
The heated steering wheel will automati-
cally turn off after about 30 minutes.
Vehicles without seat ventilators
Each time the switch is pressed, the
intensity of the seat heater changes
and the level indicator lights (amber) light as follows:
Hi (3 segments lit) Mid (2 segments
lit)  Lo (1 segment lit) Off
Vehicles with seat ventilators
Each time the switch is pressed, the
intensity of the seat heater changes
and the level indicator lights (amber) light as follows:
Hi (3 segments lit) Mid (2 segments
lit)  Lo (1 segment lit) Off
■Operation condition
The engine switch is in IGNITION ON
mode.
■Seat heater timer control
To enable seat heater timer control, press
and hold the driver and front passenger
seat heater switches at the same time when
the vehicle is stopped until a buzzer sounds
once. If a seat heater is turned on while seat
heater timer control is enabled, the intensity
of the seat heater w ill automatically change
from Hi Mid Lo.
The timing of the chan ge in seat heater
intensity differs depending on the tempera-
ture inside the cabin, etc. when the seat
heater is operating.
To disable seat heater timer control, press
and hold the driver and front passenger
seat heater switches at the same time until a
buzzer sounds twice.
Seat heaters
A
WARNING
■To prevent overheating and minor
burn injuries
Observe the following precautions when
using the seat heaters.
●Do not cover the seat with a blanket or
cushion when using the seat heater.
●Do not use seat heater more than nec-
essary.
A

2145-2. Using the air conditioning system
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Each time the switch is pressed, the
intensity of the seat ventilator changes
and the level indicator lights (green) light as follows:
Hi (3 segments lit) Mid (2 segments
lit)  Lo (1 segment lit) Off
■Operation condition
The engine switch is in IGNITION ON
mode.
■Air conditioning system-linked control
mode
When a seat ventilator is set to Hi, the fan
speed of the seat ventilator may increase
according to the fan speed of the air condi-
tioning system.
Seat ventilators
A

2155-3. Using the interior lights
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Interior features
5-3.Using the interior lights
Outer foot lights
Personal lights ( P.216)
Front interi or light (P.215)
Rear interior light ( P.215)
Door courtesy lights
Footwell lights
■Front
Turns the light on/off (touch the light)
The rear interior light turns on/off
together with the front interior light.
Turns the door position on/off
Interior lights list
Location of the interior lights
A
B
C
D
E
F
Operating the interior lights

2165-3. Using the interior lights
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1On
2
Off
■Rear
Turns the light on/off
If the front interior light is off, the rear light
can be turned on/off separately.
Turns the lights on/off (touch the lights)
■Illuminated entry system
The lights automatically turn on/off accord-
ing to engine switch mode, the presence of
the electronic key, whether the doors are locked/unlocked, and whether the doors
are opened/closed.
■To prevent the battery from being dis-
charged
If the interior lights remain on when the
engine switch is turned off, the lights will go
off automatically after 20 minutes.
■When front interior light or personal
lights do not respond as normal
●When water, dirt, etc., have adhered to
the lens surface
●When operated with a wet hand
●When wearing gloves, etc.
■Customization
Some functions can be customized.
(  P.339)
Operating the personal lights
NOTICE
■Removing light lenses
Never remove th e lens for the front inte-
rior light and personal lights. Otherwise,
the lights will be damaged.
■To prevent battery discharge
Do not leave the lights on longer than
necessary when the engine is off.

2215-5. Using the other interior features
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Interior features
■The power outlet can be used when
The engine switch is in ACCESSORY or
IGNITION ON mode.
■Using the power outlet
●The shape of the console box rim allows
power cables to be passed through when
the console box lid is closed.
1To set the visor in the forward posi-
tion, flip it down.
2
To set the visor in the side position,
flip down, unhook, and swing it to
the side. 3
To use the side extender, place the
visor in the side position, then slide
it backward.
Slide the cover to open.
The light turns on when the cover is
opened.
■To prevent battery discharge
If the vanity lights remain on when the
engine switch is turned off, the lights will go
off automatically after 20 minutes.
NOTICE
■To avoid damaging the power outlet
Close the power outlet lid when the
power outlet is not in use.
Foreign objects or liquids that enter the
power outlet may cause a short circuit.
■To prevent the battery from being dis-
charged
Do not use the power outlet longer than
necessary when the engine is off.
Sun visors
Vanity mirrors
NOTICE
■To prevent the battery from being dis-
charged
Do not leave the lights on longer than
necessary when the engine is off.

2346-1. Maintenance and care
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WARNING
■Precaution regarding the rear
bumper with Blind Spot Monitor (if
equipped)
If the paint of the rear bumper is chipped
or scratched, the system may malfunc-
tion. If this occurs, consult your Lexus
dealer.
NOTICE
■To prevent paint deterioration and
corrosion on the body and compo-
nents (aluminum wheels, etc.)
●Wash the vehicle immediately in the
following cases:
• After driving near the sea coast
• After driving on salted roads
• If coal tar or tree sap is present on the paint surface
• If dead insects, insect droppings or bird droppings are present on the
paint surface
• After driving in an area contaminated with soot, oily smoke, mine dust, iron
powder or chemical substances
• If the vehicle becomes heavily soiled with dust or mud
• If liquids such as benzene and gasoline are spilled on the paint surface
●If the paint is chip ped or scratched,
have it repaired immediately.
●To prevent the wheels from corroding,
remove any dirt and store in a place
with low humidity when storing the
wheels.
■Cleaning the exterior lights
●Wash carefully. Do not use organic
substances or scrub with a hard brush.
This may damage the surfaces of the
lights.
●Do not apply wax to the surfaces of the
lights.Wax may cause damage to the
lenses.
■To prevent damage to the windshield
wiper arms
When lifting the wiper arms away from
the windshield, pull the driver side wiper
arm upward first, and repeat for the pas-
senger side. When returning the wipers
to their original position, do so from the
passenger side first.
■When using an automatic car wash
(vehicles with rain-sensing windshield
wipers)
Set the wipers to the intermittent wind-
shield wipers. ( P.141)
If AUTO mode is selected, the wipers
may operate and the wiper blades may
be damaged.
■When using a high pressure car wash
●When washing the vehicle, do not
spray the camera or its surrounding
area directly with a high pressure
washer. Shock applied from high pres-
sure water may cause the device to not
operate normally.
●Do not bring the nozzle tip close to
boots (rubber or resin manufactured
cover), connectors or the following
parts. The parts may be damaged if
they come into contact with high-pres-
sure water.
• Traction related parts
• Suspension parts
• Steering parts
• Brake parts
●Keep the cleaning nozzle at least 11.9
in. (30 cm) away from the vehicle
body. Otherwise resin section, such as
moldings and bumpers, may be
deformed and damaged.
Also, do not continuously hold the nozzle
in the same place.

2406-2. Maintenance
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Radiator, con-
denser and inter-
cooler radiator
The radiator, con-
denser and inter-
cooler radiator should
be free from foreign
objects. (P.252)
Washer fluid
Is there sufficient
washer fluid?
( P.254)
Vehicle interior
ItemsCheck points
Accelerator
pedal
• The accelerator
pedal should move
smoothly (without
uneven pedal effort
or catching).
Automatic trans-
mission “Park”
mechanism
•When parked on a slope and the shift
lever is in P, is the
vehicle securely
stopped?
Brake pedal
• Does the brake pedal move
smoothly?
• Does the brake pedal have appro-
priate clearance
from the floor?
• Does the brake pedal have the cor-
rect amount of free
play?
ItemsCheck points
Brakes
• The vehicle should not pull to one side
when the brakes are
applied.
•The brakes should work effectively.
• The brake pedal should not feel
spongy.
• The brake pedal should not get too
close to the floor
when the brakes are
applied.
Head restraints
•Do the head restraints move
smoothly and lock
securely?
Indicators/buzz-
ers•Do the indicators and buzzers function
properly?
Lights• Do all the lights come on?
Parking brake
• Does the parking brake pedal move
smoothly?
• When parked on a slope and the park-
ing brake is on, is the
vehicle securely
stopped?
Seat belts
• Do the seat belts operate smoothly?
• The seat belts should not be damaged.
ItemsCheck points

2686-3. Do-it-yourself maintenance
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Type BNormal fuse
Blown fuse
Type C
Normal fuse
Blown fuse
Type DNormal fuse
Blown fuse
■After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb may need
replacement.
●If the replaced fuse blows again, have the
vehicle inspected by your Lexus dealer.
■If there is an overload in a circuit
The fuses are designed to blow, protecting
the wiring harness from damage.
■When replacing light bulbs
Lexus recommends that you use genuine
Lexus products designed for this vehicle.
Because certain bulbs are connected to cir-
cuits designed to prevent overload,
non-genuine parts or parts not designed for
this vehicle may be unusable.
A
B
A
B
A
B
WARNING
■To prevent system breakdowns and
vehicle fire
Observe the following precautions.
Failure to do so may cause damage to
the vehicle, and possibly a fire or injury.
●Never use a fuse of a higher amperage
rating than that indicated, or use any
other object in place of a fuse.
●Always use a genuine Lexus fuse or
equivalent.
Never replace a fuse with a wire, even
as a temporary fix.
●Do not modify the fuses or fuse boxes.
NOTICE
■Before replacing fuses
Have the cause of electrical overload
determined and repaired by your Lexus
dealer as soon as possible.

2706-3. Do-it-yourself maintenance
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Check the wattage of the light bulb to
be replaced. (P.326)
Rear turn signal light
■Bulbs that need to be replaced by
your Lexus dealer
 Headlights
 Parking lights and daytime running
lights
 Front turn signal lights
 Cornering lights
 Side marker lights 
Side turn signal lights
 Stop/tail lights
 Back-up light
 High mounted stoplight
 License plate lights
■LED light bulbs
The lights other than the rear turn signal
lights each consist of a number of LEDs. If
any of the LEDs burn out, take your vehicle
to your Lexus dealer to have the light
replaced.
■Condensation build-up on the inside of
the lens
Temporary condensation build-up on the
inside of the headlight lens does not indi-
cate a malfunction. Contact your Lexus
dealer for more information in the following
situations:
●Large drops of water have built up on the
inside of the lens.
●Water has built up inside the headlight.
■When replacing light bulbs
 P.268
■Rear turn signal lights
1 Open the trunk and apply protec-
tive tape to the peripheral of the
taillight and the vehicle body
around the taillight.
Use masking tape, etc. Do not use duct
tape, as it may leave residue or damage the
Light bulbs
You may replace the following bulbs
by yourself. The difficulty level of
replacement varies depending on
the bulb. If necessary bulb replace-
ment seems difficult to perform,
contact your Lexus dealer.
For more information about replac-
ing other light bulbs, contact your
Lexus dealer.
Preparing for light bulb replace-
ment
Bulb locations
A
Replacing light bulbs

2726-3. Do-it-yourself maintenance
RC350AWD_RC350_RC300AWD_RC30
0_OM_(U)_1810there is no light leaking from the bulb base.
8Align the tabs and push the light
unit toward the front of the vehicle
to install it.
9
Install the 2 screws and cover.
1
0Remove the protective tape.
WARNING
■Replacing light bulbs
●Turn off the lights. Do not attempt to
replace the bulb immediately after
turning off the lights. The bulbs
become very hot and may cause
burns.
●Do not touch the glass portion of the
light bulb with bare hands. When it is
unavoidable to hold the glass portion,
use and hold with a clean dry cloth to
avoid getting moisture and oils on the
bulb. Also, if the bulb is scratched or
dropped, it may blow out or crack.
●Fully install light bulbs and any parts
used to secure them. Failure to do so
may result in heat damage, fire, or
water entering the lig ht unit. This may
damage the lights or cause condensa-
tion to build up on the lens.
■To prevent damage or fire
●Make sure bulbs are fully seated and
locked.
●Check the wattage of the bulb before
installing to prevent heat damage.