maintenance LEXUS RC300 2021 Workshop Manual

3027-2. Steps to take in an emergency
WARNING
■If both the ABS and the brake system
warning lights remain on
Stop your vehicle in a safe place immedi-
ately and contact your Lexus dealer. The
vehicle will become extremely unstable
during braking, and the ABS system may
fail, which could cause an accident
resulting in death or serious injury.
■When the electric power steering
system warning light comes on
The steering wheel may become
extremely heavy.
When steering wheel operations are
heavier than usual, grip the steering
wheel firmly and operate it using more
force than usual.
■If the tire pressure warning light
comes on
Be sure to observe the following precau-
tions. Failure to do so could cause a loss
of vehicle control and result in death or
serious injury.
●Stop your vehicle in a safe place as
soon as possible. Adjust the tire infla-
tion pressure immediately.
●If the tire pressure warning light comes
on even after tire inflation pressure
adjustment, it is probable that you have
a flat tire. Check the tires. If a tire is flat,
change it with the spare tire and have
the flat tire repaired by the nearest
Lexus dealer.
●Avoid abrupt maneuvering and brak-
ing. If the vehicle tires deteriorate, you
could lose control of the steering
wheel or the brakes.
■If a blowout or sudden air leakage
should occur
The tire pressure warning system may
not activate immediately.
■Maintenance of the tires
Each tire, including the spare (if pro-
vided), should be checked monthly when
cold and inflated to the inflation pressure
recommended by the vehicle manufac-
turer on the vehicle pl acard or tire infla-
tion pressure label (tire and load
information label). (If your vehicle has
tires of a different size than the size indi-
cated on the vehicle placard or tire infla-
tion pressure label [tire and load
information label], you should determine
the proper tire inflation pressure for
those tires.)
As an added safety fe ature, your vehicle
has been equipped with a tire pressure
monitoring system (TPMS-tire pressure
warning system) that illuminates a low
tire pressure telltale (tire pressure warn-
ing light) when one or more of your tires
is significantly under-inflated. Accord-
ingly, when the low ti re pressure telltale
(tire pressure warning light) illuminates,
you should stop and check your tires as
soon as possible, and inflate them to the
proper pressure. Driving on a signifi-
cantly under-inflated tire causes the tire
to overheat and can lead to tire failure.
Under-inflation also reduces fuel effi-
ciency and tire tread life, and may affect
the vehicle’s handling and stopping abil-
ity.
Please note that the TPMS (tire pressure
warning system) is not a substitute for
proper tire maintenance, and it is the
driver’s responsibility to maintain correct
tire pressure, even if under-inflation has
not reached the level to trigger illumina-
tion of the TPMS low tire pressure telltale
(tire pressure warning light).

3037-2. Steps to take in an emergency
7
When trouble arises
WARNING
Your vehicle has also been equipped with
a TPMS (tire pressure warning system)
malfunction indicator to indicate when
the system is not operating properly. The
TPMS (tire pressure warning system)
malfunction indicator is combined with
the low tire pressure telltale (tire pres-
sure warning light). When the system
detects a malfunction, the telltale will
flash for approximately one minute and
then remain continuously illuminated.
This sequence will continue upon subse-
quent vehicle start-ups as long as the
malfunction exists. When the malfunction
indicator is illuminated, the system may
not be able to detect or signal low tire
pressure as intended.
TPMS (tire pressure warning system)
malfunctions may occur for a variety of
reasons, including th e installation of
replacement or alternate tires or wheels
on the vehicle that prevent the TPMS
(tire pressure warning system) from func-
tioning properly. Always check the
TPMS (tire pressure warning system)
malfunction telltale after replacing one
or more tires or wheels on your vehicle to
ensure that the replacement or alternate
tires and wheels allow the TPMS (tire
pressure warning system) to continue to
function properly.
NOTICE
■To ensure the tire pressure warning
system operates properly
Do not install tires wi th different specifi-
cations or makers, as the tire pressure
warning system may not operate prop-
erly.
If a warning message is dis-
played
The multi-information display
shows warnings of system malfunc-
tions, incorrectly performed opera-
tions, and messages that indicate a
need for maintenance. When a
message is shown, perform the cor-
rection procedure appropriate to
the message.
Except F SPORT models
Master warning light
The master warning light also comes on
or flashes in order to indicate that a mes-
sage is currently be ing displayed on the
multi-information display.
Multi-information display
Follow the instructions of the message
on the multi-information display.
If any of the warning messages are
shown again after the following actions
have been performed, contact your
Lexus dealer.
A
B

3057-2. Steps to take in an emergency
7
When trouble arises
The warning lights and warning buzzers operate as follows depending on the con-
tent of the message. If a message indicates the need for inspection by a dealer, have
the vehicle inspected by your Lexus dealer immediately.
 In some situations, the master warning light and warning buzzer may not oper-
ate as specified. In this case, follow the instructions displayed in the warning
message.
 If a warning light comes on or flashes at the same time that a warning message is
displayed, take corrective actio n according to the warning light. ( P.295)
*: A buzzer sounds the first time a message is shown on the multi-information display.
■Warning messages
The warning messages explained below
may differ from the actual messages
according to operation conditions and vehi-
cle specifications.
■Warning buzzer
In some cases, the bu zzer may not be heard
due to being in a noisy location or audio
sound.
■If “Engine Oil Level Low Add or
Replace” is displayed
The engine oil level is low. Check the level
of the engine oil, and add if necessary. This message ma
y appear if the vehicle is
stopped on a slope. Move the vehicle to a
level surface and chec k to see if the mes-
sage disappears.
■If a message that indicates the malfunc-
tion of front camera is displayed
The following systems may be suspended
until the problem shown in the message is
resolved. ( P.160, 298)
●PCS (Pre-Collision System)
●LDA (Lane Departure Alert with steering
control)
●Automatic High Beam
●Dynamic radar cruise control with
Messages and warnings
Warning buzzer*Warning
Comes onSounds
Indicates an important situat ion, such as when a sys-
tem related to driving is ma lfunctioning or that dan-
ger may result if the co rrection procedure is not
performed
FlashesSoundsIndicates a situation, such as when damage to the
vehicle or danger may result
Comes onDoes not sound
Indicates a condition, such as malfunction of electri-
cal components, their cond ition, or indicates the
need for maintenance
FlashesDoes not sound
Indicates a situation, such as when an operation has
been performed incorrectly, or indicates how to
perform an operation correctly

3067-2. Steps to take in an emergency
full-speed range
■If “Maintenance Required Soon” is dis-
played
Indicates that all maintenance according to
the driven distance on the maintenance
schedule
* should be performed soon.
Comes on approximately 4500 miles
(7200 km) after the message has been
reset. If necessary, perform maintenance.
Please reset the message after the mainte-
nance is performed. ( P.248)
*: Refer to the separa te “Scheduled Main-
tenance” or “Owner’s Manual Supple-
ment” for the maintenance interval
applicable to your vehicle.
■If “Maintenance Required Visit Your
Dealer” is displayed
Indicates that all maintenance is required to
correspond to the driven distance on the
maintenance schedule
*.
Comes on approximately 5000 miles
(8000 km) after the message has been
reset. (The indicator will not work properly
unless the message ha s been reset.) Per-
form the necessary maintenance. Please
reset the message after the maintenance is
performed. ( P.248)
*: Refer to the separa te “Scheduled Main-
tenance” or “Owner’s Manual Supple-
ment” for the maintenance interval
applicable to your vehicle.
■If “Oil Maintenance Required Soon” is
displayed
Indicates that the engine oil is scheduled to
be changed. (The indicator will not work
properly unless the oil maintenance data
has been reset.)
Check the engine oil, and change if neces-
sary. After changing the engine oil, the oil
change system should be reset. ( P.260)
■If “Oil Maintenance Required” is dis-
played
Indicates that the engine oil should be
changed. (After the engine oil is changed
and the oil maintenance data has been
reset.) Check and change the en
gine oil, and oil fil-
ter by your Lexus dealer. After changing the
engine oil, the oil change system should be
reset. ( P.260)
■If a message that indicates the need for
visiting your Lexus dealer is displayed
The system or part shown on the
multi-information display is malfunctioning.
Have the vehicle inspected by your Lexus
dealer immediately.
■If “See Owner’s Manual” is displayed
●If the following messages are shown, fol-
lowing the instruct ions, accordingly.
• “Engine Coolant Temp High” ( P.322)
●If any of the following messages are
shown on the multi-info rmation display, it
may indicate a malfunction. Have the
vehicle inspected by your Lexus dealer
immediately.
• “Braking Power Low”
• “Access System with Elec. Key Malfunc-
tion”
●If any of the following messages are
shown on the multi-info rmation display, it
may indicate a malfun ction. Immediately
stop the vehicle and contact your Lexus
dealer.
• “Oil Pressure Low”
• “Charging System Malfunction”
NOTICE
■“High Power Consumption Partial
Limit On AC/Heater Operation” is
frequently shown
There is a possible malfunction relating
to the charging system or the battery
may be deteriorating. Have the vehicle
inspected by your Lexus dealer.

327
8
8
Vehicle specifications
Vehicle specifications
.8-1. SpecificationsMaintenance data (fuel, oil level, etc.) .............................................. 328
Fuel information ......................... 339
Tire information........................... 341
8-2. Customization Customizable features............. 351
8-3. Items to initialize Items to initialize ......................... 361
8-4. Certifications Certifications .............................. 362

3288-1. Specifications
8-1.Specifications
*1:Unladen vehicle
*2: Vehicles with 265/35R19 tires
■Vehicle identification number
The vehicle identification number
(VIN) is the legal identifier for your
vehicle. This is the primary identifica-
tion number for your Lexus. It is used in
registering the ownership of your vehi-
cle.
This number is stamped on the top left
of the instrument panel and in the
engine compartment.
Maintenance data (fuel, oil level, etc.)
Dimensions and weight
Overall length185.0 in. (4700 mm)
Overall width72.4 in. (1840 mm)
Overall height*154.9 in. (1395 mm)
Wheelbase107.5 in. (2730 mm)
Tread*1
Front62.2 in. (1580 mm)
Rear63.0 in. (1600 mm)
61.8 in. (1570 mm)
*2
Vehicle capacity weight (Occupants + luggage)700 lb. (320 kg)
Seating capacity
Seating capacity4 (Front 2, Rear 2)
Vehicle identification

3618-3. Items to initialize
8
Vehicle specifications
8-3.Items to initialize
Items to initialize
The following items must be initialized for normal system operation after such
cases as the battery being reconnected, or maintenance being performed on
the vehicle:
List of items to initialize
ItemWhen to initializeReference
Message indicating
maintenance is
required
After the maintenance is performedP.248
Engine oil mainte-
nance dataAfter changing the engine oilP.260
Tire pressure warning
system
• When rotating the tires
• When changing the tire inflation pres- sure by changing traveling speed or
load weight, etc.
P.270

386Alphabetical Index
CareExterior ........................................................... 242
Interior ............................................................. 245
Seat belts........................................................ 245
Wheels and wheel ornaments............ 242
Cargo capacity...............................................125
Cargo hooks ................................................. 229
Center Display ............................................... 212
Chains .............................................................. 206
Child restraint system Child seats definition................................... 40
Child seats installation........................ 44, 47
Front passenger occupant classification system ............................................................. 36
Installing a CRS to the front passenger seat ....................................................................42
Installing CRS with LATCH anchors . 48
Installing CRS with top tether strap.....50
Riding with children ..................................... 40
Types of child restraint system installation method ............................................................. 41
Using an anchor bracket .......................... 49
Child safety Airbag precautions.......................................32
Battery precautions ........................ 264, 321
Child restraint system.......................... 40, 41
Heated steering wheel or seat heater precautions................................................ 223
How your child should wear the seat belt ............................................................................ 25
Installing child restraints ............................ 40
Moon roof precautions ............................. 116
Power window lock switch...................... 113
Seat belt extender precautions ............. 25
Seat belt precautions .................................. 40
Trunk precautions .......................................... 91
Cleaning Exterior ........................................................... 242
Interior ............................................................. 245
Radar sensor................................................. 158
Seat belts........................................................ 245
Wheels and wheel ornaments............ 242 Clock ........................................................66, 230
Clock settings ............................................... 230
Coat hooks..................................................... 230
Compass ......................................................... 237
Condenser ..................................................... 262
Console box .................................................. 228
Consumption screen .....................................79
Cooling system............................................. 260
Engine overheating................................... 322
Cornering lights .............................................143 Replacing light bulbs ................................282
Cruise control Dynamic radar cruise control with full-speed range ........................................176
Cup holders ................................................... 228
Current fuel consumption ...........................73
Curtain shield airbags .................................. 28
Customizable features ................................351
D
Daytime running light system ................... 142
Daytime running lights Replacing light bulbs ................................282
Defogger Outside rear view mirrors.......................219
Rear window ..................................................219
Windshield ......................................................219
Differential Front differential oil............. .......................333
Rear differential oil......... ..................... .......333
Dimension ...................................................... 328
Dinghy towing.................................................126
Display Center Display .............................................. 212
Drive information .......................................... 73
LDA (Lane Departure Alert with steering control) ........................................................... 171
Multi-information display ............................ 71
Warning messages.................................. 305
Distance until next engine oil change .... 70
Do-it-yourself maintenance .................... 249
Door courtesy lights ................................... 225

388Alphabetical Index
If the engine will not start .........................314
If your vehicle has to be stopped in an
emergency ................................................286
Ignition switch (engine switch) ............. 127
Overheating................................................. 322
Tachometer ..................................................... 66
Engine coolant Capacity ......................................................... 332
Checking .......................................................260
Preparing and checking before winter.........................................................................205
Engine coolant temperature gauge ....... 66
Engine immobilizer system ........................ 56
Engine oil Capacity .........................................................330
Checking .......................................................258
Preparing and checking before winter.........................................................................205
Warning light ............................................... 296
Engine oil maintenance data .................. 260
Engine oil pressure gauge ...........................74
Engine oil temperature gauge ...................74
Engine switch .................................................. 127 Auto power off function .......................... 130
Changing the engine switch modes.. 129
If your vehicle has to be stopped in an
emergency ................................................286
EPS (Electric Power Steering) ................201 Warning light ............................................... 297
Event data recorder (EDR) ............................6
F
First-aid kit storage belt ............................ 229
Flat tire Tire pressure warning system .............268
Vehicles with a spare tire ...................... 307
Floor mats ...........................................................22
Fluid Automatic transmission .......................... 333
Brake.................................................... 262, 334
Washer ........................................................... 264
Footwell light ................................................. 225 Front passenger occupant classification
system .............................................................. 36
Front position lights Wattage ......................................................... 338
Front seats Adjustment ....................................................... 99
Cleaning .........................................................245
Correct driving posture ............................ 23
Driving position memory ........................ 102
Head restraints............................................. 105
Memory recall function............................ 104
Power easy access system .................... 102
Seat heaters .................................................. 223
Seat position memory .............................. 102
Seat ventilators ............................................ 223
Front side marker light Light switch .....................................................142
Front turn signal lights Replacing light bulbs ................................282
Turn signal lever .......................................... 136
Wattage ......................................................... 338
Fuel Capacity ........................................................ 330
Fuel gauge ........................................................ 66
Fuel pump shut off system..................... 294
Information ....................................................339
Refueling.......................................................... 155
Type ................................................................. 330
Warning light ...............................................299
Fuel consumption Average fuel economy .............................. 73
Current fuel consumption ........................ 73
Fuel filler door If the fuel filler do or cannot be opened
........................................................................... 316
Refueling.......................................................... 155
Fuel gauge ......................................................... 66
Fuel pump shut off system........................ 294
Fuses ................................................................. 278
G
Garage door opener ................................. 232

389Alphabetical Index
Gauges ............................................................... 66
Gear Position....................................................75
G-force................................................................74
Glove box ........................................................227
Glove box light ............................................. 228
H
Head restraints .............................................. 105
Headlight aim ................................................280
HeadlightsAutomatic High Beam system.............. 144
Light switch ..................................................... 142
Replacing light bulbs................................ 282
Wattage..........................................................338
Heated steering wheel .............................. 223
Heaters Automatic air conditioning system .....215
Heated steering wheel............................ 223
Outside rear view mirrors ...................... 219
Seat heaters .................................................. 223
High mounted stoplight Replacing light bulbs................................ 282
Hill-start assist control .................................201
Hood Open ............................................................... 255
Hooks Cargo hooks................................................ 229
Coat hooks ................................................... 230
Retaining hooks (floor mat)......................22
Horn ................................................................... 109
I
I/M test ............................................................ 252
Identification Engine ............................................................. 329
Vehicle ............................................................ 328
Ignition switch (engine switch)................. 127 Auto power off function .......................... 130
Changing the engine switch modes.. 129
If your vehicle has to be stopped in an
emergency ................................................286 Illuminated entry system ........................... 226
Indicators ........................................................... 64
Initialization
Items to initialize .......................................... 361
Maintenance.................................... 248, 260
Power windows ............................................. 112
Tire pressure warning system .............269
Inside rear view mirror ............................... 109
Instrument panel light co ntrol ..................... 71
Intercooler...................................................... 262
Intercooler coolant Capacity ......................................................... 332
Checking ...................................................... 260
Interior lights.................................................. 225 Front interior light ...................................... 225
Rear interior light........................................ 225
Intuitive parking assist Warning message ...................................... 187
J
JackPositioning a floor jack ............................255
Vehicle-equipped jack ...........................307
Jack handle .................................................... 307
Jam protection function Moon roof ........................................................ 115
Power windows ............................................. 112
K
Keyless entrySmart access system with push-button start ...................................................................95
Wireless remote control ...........................86
Keys Battery-saving function..............................96
Electronic key .................................................84
Engine switch ................................................. 127
If the electronic key does not operate properly .........................................................317
If you lose your keys .................................. 316
Key number plate .........................................84