2021 LEXUS RX350 warning lights

3075-3. Using the air conditioning system and defogger
5
Interior features
Vehicles with seat ventilators
When any switch is pressed, the system
is set to automatic mode and the
“AUTO” indicator (green) lights up.
Each time the switch is pressed, the
operation condition changes as fol-
lows.
Hi (3 segments lit) Mid (2 segments
lit)  Lo (1 segment lit) Off
The level indicator (amber) lights up
during operation.
■Second-row seats
Each time the switch is pressed, the
operation condition changes as fol-
lows.
Hi (3 segments lit) Mid (2 segments
lit)  Lo (1 segment lit) Off
The level indicator (amber) lights up
during operation.
Type A
Type B
■Operation condition
The engine switch is in IGNITION ON
mode.
■When the air conditioning system is
operating in front seat concentrated air-
flow mode (S-FLOW)
If a passenger is not detected in the front
passenger seat, the seat heater of the front
passenger’s seat will be turned off if on.
(  P.300)
■Customization
Some functions can be customized.
(  P.461)
A
B
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.

3085-3. Using the air conditioning system and defogger
When any switch is pressed, the system
is set to automatic mode and the
“AUTO” indicator (green) lights up.
Each time the switch is pressed, the
operation condition changes as fol-
lows.
Hi (3 segments lit)Mid (2 segments
lit)  Lo (1 segment lit) Off
The level indicator (g reen) lights up
during operation.
■Operation condition
The engine switch is in IGNITION ON
mode.
■When the air conditioning system is
operating in front seat concentrated air-
flow mode (S-FLOW)
If a passenger is not detected in the front
passenger seat, the seat ventilator of the
front passenger’s seat wi ll be turned off if
on. ( P.300)
■Customization
Some functions can be customized.
(  P.461)
WARNING
●Do not use seat heater more than nec-
essary.
Seat ventilators (front seats)
A
B

3145-5. Using the storage features
1Open (press the button)
2 Unlock with the mechanical key
3 Lock with the mechanical key
■Glove box light
The glove box light turns on when the tail
lights are on.
■When cleaning the interior
Remove to clean it.
When installing , engage the left and
right claws and then engage the center
claw.
Push the knob.
Lift by hand to fully open the console box.
■Console box light
The console box light turns on when the tail
lights are on.
■Pen holder
A pen can be stored in the pen holder on
the underside of the lid.
WARNING
■When storage compartments are not
in use
When driving or when the storage com-
partments are not in use, keep the lids
closed.
In the event of sudden braking or sudden
swerving, an accident may occur due to
an occupant being struck by an open lid
or the items stored inside.
Glove box
Smartphone holder
Console box
A
A

3335-6. Using the other interior features
5
Interior features
3To 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.
Use the front passenger footwell hooks
to help support and prevent objects
placed on the floor, such as a grocery
bag, from overturning. Pull the sunshade up using the tab and
hook the sunshade on to the anchors.
To lower the sunshade, pull it up slightly
using the tab, unhook it from the anchors,
and lower it slowly.
Vanity mirrors
NOTICE
■To prevent the battery from being dis-
charged
Do not leave the vanity lights on for
extended periods while the engine is off.
Front passenger footwell hooks
NOTICE
■To prevent damage to the hooks
Do not hang anything from a hook or
apply excessive force to it.
Rear door sunshades (if
equipped)
WARNING
■Closing the rear door sunshade
When a rear door sunshade is in use, do
not put fingers, etc. on the anchors or in
the groove of the rear door sunshade.
Otherwise, a finger, etc. may get caught,
possibly causing an injury.

3466-1. Maintenance and care
WARNING
●Lexus Safety System + 2.0
●BSM (if equipped)
●RCTA (if equipped)
●PKSB (if equipped)
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, in sect 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.
■When using an automatic car wash
(vehicles with rain-sensing windshield
wipers)
Set the wiper switch to the off position.
If the wiper switch is in “AUTO”, the wip-
ers may operate and the wiper blades
may be damaged.
■When using a high pressure car wash
●When washing the vehicle, do not let
water of the high pressure washer hit
directly or the vicinity of the camera.
Due to the shock from the high pres-
sure water, it is possible the device may
not operate as normal.
●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
•Steering parts
• Suspension 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.
●Do not spray the lower part of the
windshield continuously.
If water enters the air conditioning sys-
tem intake located near the lower part of
the windshield, the air conditioning sys-
tem may not operate correctly.
●Do not wash the underside of the vehi-
cle using a high pressure car washer.

3826-3. Do-it-yourself maintenance
■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.
Vehicles without single-beam head-
lights
Adjustment bolt A
Adjustment bolt B
Vehicles with single-beam head-
lightsAdjustment bolt A
Adjustment bolt B
1 Make sure the vehicle has a full
tank of gasoline and the area
around the headlight is not
deformed.
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.
Headlight aim
Vertical movement adjusting
bolts
Before checking the headlight
aim
A
B
A
B

3926-3. Do-it-yourself maintenance
WARNING
■To prevent injury
Before performing any light bulb
replacement procedure, be sure to turn
the engine switch off. Failure to do so
may result in burns from hot components
or a part of your bo dy may get caught on
an operating component, possibly caus-
ing serious injury.
■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 headlight unit. This
may damage the headlights or cause
condensation to build up on the lens.
●Do not attempt to repair or disassem-
ble the light bulbs, connectors, electric
circuits or component parts.
Doing so may result in death or serious
injury due to electric shock.
■To prevent damage or fire
●Make sure bulbs are fully seated and
locked.
●Check the wattage of the bulb before
installing to prev ent heat damage.

4037-2. Steps to take in an emergency
7
When trouble arises
■Brake system warning light
■Brake system warning light
■High coolant temperature warning light* (warning buzzer)
*: This light illuminates on the multi-information display.
If a warning light turns on or a warning buzzer sounds
Calmly perform the following actions if any of the warning lights comes on or
flashes. If a light comes on or flashes, bu t then goes off, this does not necessar-
ily indicate a malfunction in the system. However, if this continues to occur,
have the vehicle inspected by your Lexus dealer.
Actions to the warning lights or warning buzzers
Warning lightDetails/Actions
(U.S.A.)
or
(red)
(Canada)
Indicates that:
 The brake fluid level is low; or
 The brake system is malfunctioning
 Immediately stop the vehicle in a safe place and contact your Lexus
dealer. Continuing to drive the vehicle may be dangerous.
Warning lightDetails/Actions
(yellow)
Indicates a malfunction in the electric parking brake
 Have the vehicle inspected by your Lexus dealer immediately.
Warning lightDetails/Actions
Indicates that the engine coolant temperature is too high
Immediately stop the vehicle in a safe place.
Handling method ( P.437)