check engine LEXUS RC350 2022 Owners Manual

4TABLE OF CONTENTS
RC350/RC300 Owner's Manual
Air conditioning filter..................273
Electronic key battery ................ 275
Checking and replacing fuses ........................................................... 276
Headlight aim................................. 278
Light bulbs ....................................... 279
7-1. Essential information Emergency flashers..................... 284
If your vehicle has to be stopped in an emergency ............................. 284
If the vehicle is submerged or water on the road is rising .................. 285
7-2. Steps to take in an emergency If your vehicle needs to be towed........................................................... 287
If you think something is wrong ............................................................ 291
Fuel pump shut off system ........ 292
If a warning light turns on or a warn- ing buzzer sounds ..................... 293
If a warning message is displayed ............................................................ 301
If you have a flat tire..................... 305
If the engine wi ll not start ........... 312
If you lose your keys ..................... 314
If the fuel filler door cannot be opened............................................ 314
If the electronic key does not oper- ate properly .................................. 315
If the vehicle battery is discharged ............................................................ 317
If your vehicle overheats ........... 320
If the vehicle becomes stuck ... 3248-1. Specifications
Maintenance data (fuel, oil level, etc.) ................................................. 326
Fuel information............................ 337
Tire information ............................ 339
8-2. Customization Customizable features .............. 349
8-3. Items to initialize Items to initialize ........................... 358
9-1. For owners Reporting safety defects for U.S. owners ........................................... 360
Reporting safety defects for Cana- dian owners ................................. 360
Seat belt instructions for Canadian owners (in French) .................... 361
SRS airbag instructions for Cana- dian owners (in French) ......... 362
Headlight aim instructions for Canadian owners (in French)
.......................................................... 368
What to do if... (Troubleshooting) .......................................................... 370
Certifications ................................. 373
Alphabetical Index ...................... 384
7When trouble arises
8Vehicle specifications
9For owners
Index

5
RC350/RC300 Owner's Manual
Please note that this manual applies to
all models and explains all equipment,
including options. Therefore, you may
find explanations for equipment not
installed on your vehicle and the illus-
trations used may differ from your vehi-
cle.
All specifications provided in this man-
ual are current at the time of printing.
Over time, your vehicle may receive
updates that modify the vehicle and
make material in this manual incom-
plete and/or inaccurate. Because of
Lexus’ interest in continual product
improvement, Lexus reserves the right
to make changes to this manual at any
time without notice.
If Lexus chooses to update the manual,
updated versions can be viewed by
selecting your vehicle by model and
year at the following URL or on your
mobile device if you have access to the
Lexus app.
https://drivers.lexus.com
Approximately five hours after the
engine is turned off, you may hear
sound coming from under the vehicle
for several minutes. This is the sound of
a fuel evaporation leakage check and,
it does not indicate a malfunction. A wide variety of non-genuine spare
parts and accessories for Lexus vehi-
cles are currently available in the mar-
ket. You should know that Toyota does
not warrant these products and is not
responsible for their performance,
repair, or replacement, or for any dam-
age they may cause to, or adverse
effect they may have on, your Lexus
vehicle.
This vehicle should not be modified
with non-genuine Lexus products.
Modification with non-genuine Lexus
products could affect its performance,
safety or durability, and may even vio-
late governmental regulations. In addi-
tion, damage or performance
problems resulting from the modifica-
tion may not be covered under war-
ranty.
The installation of a mobile two-way
radio system in your vehicle could
affect electronic systems such as:

Multiport fuel injection sys-
tem/sequential multiport fuel injec-
tion system
 Lexus Safety System +
 Anti-lock brake system
 Vehicle dynamics integrated man-
agement
 SRS airbag system
For your information
Main Owner’s Manual
Noise from under vehicle after
turning off the engine
Accessories, spare parts and
modification of your Lexus
Installation of a mobile two-way
radio system

6
RC350/RC300 Owner's Manual
Seat belt pretensioner system
Be sure to check with your Lexus
dealer for precautionary measures or
special instructions regarding installa-
tion of a mobile two-way radio system.
The vehicle is equipped with sophisti-
cated computers that will record cer-
tain data, such as:
• Engine speed / Electric motor speed (traction motor speed)
• Accelerator status
•Brake status
• Vehicle speed
• Operation status of the driving assist systems
• Images from the cameras
Your vehicle is equipped with cameras.
Contact your Lexus dealer for the location
of recording cameras.
The recorded data varies according to
the vehicle grade level and options
with which it is equipped.
These computers do not record con-
versations or sounds, and only record
images outside of the vehicle in certain
situations.
 Data Transmission
Your vehicle may transmit the data
recorded in these computers to Lexus
without notification to you.
Data usage
Lexus may use the data recorded in this
computer to diagnose malfunctions, con-
duct research and development, 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 vehi-
cle is leased
• In response to an official request by the police, a court of law or a government
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 image information can be
erased by your Lexus dealer.
The image recording function can be dis-
abled. However, if the function is disabled,
data from when the system operates will
not be available.
 To learn more abou t the vehicle data
collected, used and shared by
Lexus, please visit
www.lexus.com/privacyvts/
.
If your Lexus has Lexus Enform and if
you have subscribed to those services,
please refer to the Lexus Enform
Telematics Subscription Service
Agreement for information on data
collected and its usage.
To learn more about the vehicle data
collected, used and shared by Lexus,
please visit
www.lexus.com/privacyvts/
.
Vehicle data recording
Usage of data collected through
Lexus Enform (U.S. mainland on-
ly)

12Pictorial index
RC350/RC300 Owner's Manual
Windshield wipers .................................................................................................. P.145
Precautions for winter season .....................................................................................P.203
To prevent freezing (windshield wiper de-icer)
*................................................... P.217
Precautions against car wash ........................................................................................P.241
Fuel filler door ..........................................................................................................P.153
Refueling method .............................................................................................................. P .153
Fuel type/fuel tank capacity .........................................................................................P.328
Tires.......................................................................................................................... ..P.263
Tire size/inflation pressure ............................ ............................................................... P.332
Winter tires/tire chain ....................................................................................................P.20 3
Checking/rotation/tire pressure warning system.............................................. P.263
Coping with flat tires........................................................................................................P .305
Hood ......................................................................................................................... P. 253
Opening ........................................................................................................................ ....... P.253
Engine oil ..................................................................................................................... .........P.328
Coping with overheating ...............................................................................................P.320
Warning messages ........................................................................................................... P.30 1
Headlights .................................................................................................................P.14 0
Parking lights/daytime running lights................ ...............................................P.140
Turn signal lights ...................................................................................................... P.134
Cornering lights ......................................................................................................P.140
Side marker lights ...................................................................................................P.140
Tail lights .................................................................................................................... P.140
Stop lights
Back up light
Shifting the shift lever to R .............................................................................................. P.13 0
License plate lights .................................................................................................P.140
*:If equipped
Light bulbs of the exterior lights for driving
(Replacing method: P.279, Watts: P.336)
D
E
F
G
H
I
J
K
L
M
N
O

221-1. For safe use
RC350/RC300 Owner's Manual
1-1.For safe use
Use only floor mats designed specifi-
cally for vehicles of the same model
and model year as your vehicle. Fix
them securely in place onto the carpet.
1Insert the retaining hooks (clips)
into the floor mat eyelets.
2 Turn the upper knob of each retain-
ing hook (clip) to secure the floor
mats in place.
Always align the marks .
The shape of the reta ining hooks (clips)
may differ from that shown in the illustra-
tion.
Before driving
Observe the following before start-
ing off in the vehicle to ensure
safety of driving.
Installing floor mats
A
WARNING
Observe the following precautions.
Failure to do so may cause the driver’s
floor mat to slip, possibly interfering with
the pedals while driving. An unexpect-
edly high speed may result or it may
become difficult to stop the vehicle. This
could lead to an accident, resulting in
death or serious injury.
■When installing the driver’s floor mat
●Do not use floor mats designed for
other models or di fferent model year
vehicles, even if they are Lexus Genu-
ine floor mats.
●Only use floor mats designed for the
driver’s seat.
●Always install the floor mat securely
using the retaining hooks (clips) pro-
vided.
●Do not use two or more floor mats on
top of each other.
●Do not place the floor mat bot-
tom-side up or upside-down.
■Before driving
●Check that the floor mat is securely
fixed in the correct place with all the
provided retaining hooks (clips). Be
especially careful to perform this
check after cleaning the floor.
●With the engine stopped and the shift
lever in P, fully depress each pedal to
the floor to make sure it does not inter-
fere with the floor mat.

511-1. For safe use
RC350/RC300 Owner's Manual
1
For safety and security
Exhaust gas precautions
Harmful substance to the human
body is included in exhaust gases if
inhaled.
WARNING
Exhaust gases include harmful carbon
monoxide (CO), which is colorless and
odorless. Observe the following precau-
tions.
Failure to do so may cause exhaust gases
enter the vehicle and may lead to an
accident caused by light-headedness, or
may lead to death or a serious health
hazard.
■Important points while driving
●Keep the trunk lid closed.
●If you smell exhaust gases in the vehi-
cle even when the trunk lid is closed,
open the windows and have the vehi-
cle inspected at your Lexus dealer as
soon as possible.
■When parking
●If the vehicle is in a poorly ventilated
area or a closed area, such as a
garage, stop the engine.
●Do not leave the vehicle with the
engine on for a long time.
If such a situation cannot be avoided,
park the vehicle in an open space and
ensure that exhaust fumes do not enter
the vehicle interior.
●Do not leave the engine running in an
area with snow build-up, or where it is
snowing. If snowbanks build up around
the vehicle while the engine is running,
exhaust gases may collect and enter
the vehicle.
■Exhaust pipe
The exhaust system needs to be checked
periodically. If there is a hole or crack
caused by corrosion, damage to a joint
or abnormal exhaust noise, be sure to
have the vehicle inspected and repaired
by your Lexus dealer.

571-3. Theft deterrent system
RC350/RC300 Owner's Manual
1
For safety and security
■Items to check before locking the
vehicle
To prevent unexpected triggering of
the alarm and vehicle theft, make sure
of the following:
 Nobody is in the vehicle.
 The windows and moon roof (if
equipped) are closed before the
alarm is set.
 No valuables or other personal items are left in the vehicle.
■Setting
Close the doors, trunk and hood, and
lock both side doors. The system will
be set automatically after 30 seconds.
The indicator light changes from being on
to flashing when the system is set.
■Canceling or stopping
Do one of the following to deactivate
or stop the alarms:
 Unlock the doors.
 Open the trunk using the entry
function or wireless remote control.
 Turn the engine switch to ACCES-
SORY or IGNITION ON mode, or
start the engine. (The alarm will be
deactivated or stopped after a few
seconds.)
■System maintenance
The vehicle has a maintenance-free type
alarm system.
■Triggering of the alarm
The alarm may be triggered in the following
situations:
(Stopping the alarm deactivates the alarm
system.)
●For Canada: The doors are unlocked
using the mechanical key.
Alarm
The alarm uses light and sound to
give an alert when an intrusion is
detected.
The alarm is triggered in the follow-
ing situations when the alarm is set:
 Except for Canada: A locked
door is unlocked or opened in any
way other than using the entry
function, wireless remote control
or mechanical key. (The doors will
lock again automatically.)
 For Canada: A locked door is
unlocked or opened in any way
other than using the entry func-
tion or wireless remote control.
(The doors will lock again auto-
matically.)
 The trunk is opened in any way
other than using the entry func-
tion or wireless remote control.
 The hood is opened.
Setting/canceling/stopping the
alarm system

632-1. Instrument cluster
RC350/RC300 Owner's Manual
2
Vehicle status information and indicators
Warning lights inform the driver of mal-
functions in the indicated vehicle sys-
tems.
*1: These lights turn on when the engine
switch is turned to IGNITION ON
mode to indicate that a system check is
being performed. They will turn off after
the engine is started, or after a few sec-
onds. There may be a malfunction in a
system if a light does not come on, or
turn off. Have the vehicle inspected by
Warning lights
(U.S.A.)
Brake system warning light*1
( P.293)
(red)
(Canada)
Brake system warning light*1
( P.293)
(yellow)
Brake system warning light*1
( P.293)
High coolant temperature
warning light
*2 ( P.293)
Charging system warning
light
*3 (  P.294)
Low engine oil pressure warn-
ing light
*2 (  P.294)
(U.S.A.)
Malfunction indicator lamp*1
( P.294)
(Canada)
Malfunction indicator lamp*1
( P.294)
SRS warning light
*1 ( P.294)
(U.S.A.)
ABS warning light*1 ( P.295)
(Canada)
ABS warning light*1 ( P.295)
(flashes)
(U.S.A.)
Parking brake warning light
( P.298)
(flashes)
(Canada)
Parking brake warning light
( P.298)
(flashes) Brake hold operated indicator
*1
( P.293)
Brake Override System warn-
ing light/Drive-Start Control
warning light
*2 (  P.295)
Electric power steering system
warning light
*1 ( P.295)
(orange)
LDA (Lane Departure Alert)
indicator ( P.296)
(flashes or
illuminates)PCS warning light*1 (  P.296)
Slip indicator
*1 ( P.296)
Open door warning light
( P.297)
Low fuel level warning light
( P.297)
Driver’s and front passenger’s
seat belt reminder light
( P.297)
Rear passenger’s seat belt
reminder lights
*4 (  P.297)
Master warning light
*1
( P.298)
Tire pressure warning light
*1
( P.298)

652-1. Instrument cluster
RC350/RC300 Owner's Manual
2
Vehicle status information and indicators
Drive mode indicators
Except F SPORT models
F SPORT models
*1: These lights turn on when the engine
switch is turned to IGNITION ON
mode to indicate that a system check is
being performed. They will turn off after
the engine is started, or after a few sec-
onds. There may be a malfunction in a
system if a light does not come on, or
turn off. Have the vehicle inspected by
your Lexus dealer.
*2: The light comes on when the system is turned off.
*3: In order to confirm operation, the BSM outside rear view mirror indicators illu-
minate in the following situations:
• When the engine switch is turned to
IGNITION ON mode while the
BSM main switch is turned on.
• When the BSM main switch is turned on while the engine switch is
in IGNITION ON mode.
If the system is functioning correctly, the
BSM outside rear view mirror indicators
will turn off after a few seconds. If the BSM
outside rear view mirror indicators do not
illuminate or do not turn off, there may be a
malfunction in the syst em. If this occurs,
have the vehicle inspected by your Lexus
dealer.
*4: This light illuminates on the outside rear view mirrors.
*5: This light illuminates on the center panel.
*6: When the outside temperature is approximately 37°F (3°C) or lower, this
indicator will flash for approximately 10
seconds, then stay on.
Eco Driving Indicator Light
*1
( P.74)
(U.S.A.)
“AIR BAG ON/OFF”
indicator
*1, 5 ( P.36)
(Canada)
“AIR BAG ON/OFF”
indicator
*1, 5 (P.36)
Eco drive mode indicator
( P.196)
“SPORT” indicator ( P.196)
Snow mode indicator ( P.131)
Eco drive mode indicator
( P.196)
“SPORT S” indicator ( P.196)
“SPORT S+” indicator
( P.196)
“CUSTOM” indicator ( P.196)
Snow mode indicator ( P.131)

702-1. Instrument cluster
RC350/RC300 Owner's Manual
■Display items
 Odometer
Displays the total distance the vehicle has
been driven.
Trip meter A/trip meter B
Displays the distance the vehicle has been
driven since the meter was last reset. Trip
meters A and B can be used to record and
display different distances independently.
 Distance until next engine oil change
Displays the distance the vehicle can be
driven until an oil change is necessary.
■Changing the display
Each time the “ODO TRIP” switch is
pressed, the displayed item will be
changed. When the trip meter is dis-
played, pressing and holding the switch
will reset the trip meter.
■Pop-up display
In some situations the following will be
temporarily displayed:
 Distance until next engine oil
change
Distance until the next engine oil change
will displayed when a warning message
indicating that oil maintenance should be
performed soon or is required is displayed.
The brightness of the instrument panel
lights can be adjusted.
WARNING
■The information display at low tem-
peratures
Allow the interior of the vehicle to warm
up before using the liquid crystal infor-
mation display. At extremely low tem-
peratures, the information display
monitor may respond slowly, and display
changes may be delayed.
For example, there is a lag between the
driver’s shifting and the new gear number
appearing on the display. This lag could
cause the driver to downshift again,
causing rapid and excessive engine brak-
ing and possibly an accident resulting in
death or injury.
NOTICE
■To prevent damage to the engine and
its components
●Do not let the indicator needle of the
tachometer enter the red zone, which
indicates the maxi mum engine speed.
●The engine may be overheating if the
engine coolant temperature gauge is
in the red zone (H). In this case, imme-
diately stop the vehicle in a safe place,
and check the engine after it has
cooled completely. ( P.320)
Odometer and trip meter dis-
play
Changing the instrument panel
light brightness