check oil LEXUS RC350 2021 Owners Manual

4TABLE OF CONTENTS
Air conditioning filter..................275
Electronic key battery ................ 277
Checking and replacing fuses ........................................................... 278
Headlight aim................................. 280
Light bulbs ........................................ 281
7-1. Essential information Emergency flashers..................... 286
If your vehicle has to be stopped in an emergency ............................. 286
If the vehicle is trapped in rising water............................................... 287
7-2. Steps to take in an emergency If your vehicle needs to be towed........................................................... 289
If you think something is wrong ........................................................... 293
Fuel pump shut off system ........ 294
If a warning light turns on or a warn- ing buzzer sounds ..................... 295
If a warning message is displayed ........................................................... 303
If you have a flat tire..................... 307
If the engine wi ll not start ........... 314
If you lose your keys ..................... 316
If the fuel filler door cannot be opened............................................ 316
If the electronic key does not oper- ate properly .................................. 317
If the vehicle battery is discharged ............................................................ 319
If your vehicle overheats ........... 322
If the vehicle becomes stuck ... 3268-1. Specifications
Maintenance 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
9-1. For owners Reporting safety defects for U.S. owners ........................................... 372
Seat belt instructions for Canadian owners (in French) ................... 372
SRS airbag instructions for Cana- dian owners (in French) ......... 374
Headlight aim instructions for Canadian owners (in French).......................................................... 380
What to do if... (Troubleshooting) .......................................................... 382
Alphabetical Index ...................... 385
7When trouble arises
8Vehicle specifications
9For owners
Index

12Pictorial index
Windshield wipers .................................................................................................. P.147
Precautions for winter season .....................................................................................P.205
To prevent freezing (windshield wiper de-icer)
*...................................................P.219
Precautions against car wash ............................. ......................................................... P.243
Fuel filler door .......................................................................................................... P.155
Refueling method .............................................................................................................. P .155
Fuel type/fuel tank capacity ...... ...................................................................................P.330
Tires.......................................................................................................................... ..P.265
Tire size/inflation pressure ........................................................................................... P.334
Winter tires/tire chain ....................................................................................................P.20 5
Checking/rotation/tire pressure warning system.............................................. P.265
Coping with flat tires........................................................................................................ P .307
Hood ..........................................................................................................................P.255
Opening ........................................................................................................................ ....... P.255
Engine oil ..................................................................................................................... .........P.330
Coping with overheating ............................................................................................... P.322
Warning messages ..........................................................................................................P.303
Headlights ................................................................................................................. P.14 2
Parking lights/daytime running lights............................................................... P.142
Turn signal lights ...................................................................................................... P.136
Cornering lights ...................................................................................................... P.142
Side marker lights ................................................................................................... P.142
Tail lights .................................................................................................................... P.142
Stop lights
Back up light
Shifting the shift lever to R ...............................................................................................P.1 32
License plate lights ................................................................................................. P.142
*:If equipped
Light bulbs of the exterior lights for driving
(Replacing method: P. 281, Watts: P.338)
D
E
F
G
H
I
J
K
L
M
N
O

632-1. Instrument cluster
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
your Lexus dealer.
Warning lights
(U.S.A.)
Brake system warning light*1
(  P.295)
(red)
(Canada)
Brake system warning light*1
(  P.295)
(yellow)
Brake system warning light*1
(  P.295)
High coolant temperature
warning light
*2 (  P.295)
Charging system warning
light
*3 (  P.296)
Low engine oil pressure warn-
ing light
*2 (  P.296)
(U.S.A.)
Malfunction indicator lamp*1
(  P.296)
(Canada)
Malfunction indicator lamp*1
(  P.296)
SRS warning light
*1 (  P.296)
(U.S.A.)
ABS warning light*1 ( P.297)
(Canada)
ABS warning light*1 ( P.297)
(flashes)
(U.S.A.)
Parking brake warning light
(  P.300)
(flashes)
(Canada)
Parking brake warning light
(  P.300)
(flashes) Brake hold operated indicator
*1
(  P.295)
Brake Override System warn-
ing light/Drive-Start Control
warning light
*2 (  P.297)
Electric power steering system
warning light
*1 (  P.297)
(orange)
LDA (Lane Departure Alert)
indicator ( P.298)
(flashes or
illuminates)PCS warning light*1 (  P.298)
Slip indicator
*1 (  P.298)
Open door warning light
(  P.299)
Low fuel level warning light
(  P.299)
Driver’s and front passenger’s
seat belt reminder light
(  P.299)
Rear passenger’s seat belt
reminder lights
*4 (  P.299)
Master warning light
*1
(  P.300)
Tire pressure warning light
*1
(  P.300)

702-1. Instrument cluster
outside temperature may not be dis-
played, or the display may take longer
than normal to change:
• When stopped, or driving at low speeds (less than 12 mph [20 km/h])
• When the outside temperature has
changed suddenly (at the entrance/exit of
a garage, tunnel, etc.)
●When “_ _”or “E” is displayed, the system
may be malfunctioning.
Take your vehicle to your Lexus dealer.
■Pop-up display
●In some situations, su ch as when a switch
operation is performed, a pop-up display
will be temporarily displayed on the
multi-information display or the odome-
ter/trip meter screen (F SPORT models).
●Some pop-up displays can be set on/off.
(  P.76)
■Customization
The meter display can be customized on
the multi-information display. ( P.351)
■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.
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 in formation 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 maximum 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.322)
Odometer and trip meter dis-
play

1234-1. Before driving
4
Driving
Cargo capacity depends on the total
weight of the occupants.
(Cargo capacity) = (Total load capac-
ity) — (Total weight of occupants)
Steps for Determining Correct Load
Limit —
(1) Locate the statement “The com-
bined weight of occupants and cargo
should never exceed XXX kg or XXX
lbs.” on your vehicle’s placard.
(2) Determine the combined weight of
the driver and passengers that will be
riding in your vehicle.
(3) Subtract the combined weight of
the driver and passengers from XXX
kg or XXX lbs.
(4) The resulting figure equals the
available amount of cargo and luggage
load capacity.
For example, if the “XXX” amount
equals 1400 lbs. and there will be five
150 lb passengers in your vehicle, the
amount of available cargo and luggage
load capacity is 650 lbs. (1400 - 750
(5  150) = 650 lbs.)
(5) Determine the combined weight of
luggage and cargo being loaded on
the vehicle. That weight may not safely
exceed the available cargo and lug-
NOTICE
●RC300: Make sure to idle the engine
immediately after high-load driving.
Stop the engine only after the turbo-
charger has cooled down.
Failure to do so may cause damage to
the turbocharger.
■If you get a flat tire while driving
A flat or damaged ti re may cause the fol-
lowing situations. Hold the steering
wheel firmly and gradually depress the
brake pedal to slow down the vehicle.
●It may be difficult to control your vehi-
cle.
●The vehicle will make abnormal
sounds or vibrations.
●The vehicle will lean abnormally.
Information on what to do in case of a flat
tire (
P.307)
■When encountering flooded roads
Do not drive on a road that has flooded
after heavy rain etc. Doing so may cause
the following serious damage to the vehi-
cle:
●Engine stalling
●Short in electrical components
●Engine damage caused by water
immersion
In the event that you drive on a flooded
road and the vehicle is flooded, be sure
to have your Lexus dealer check the fol-
lowing:
●Brake function
●Changes in quantity and quality of oil
and fluid used for the engine, transmis-
sion, transfer (AWD models), differen-
tial, etc.
●Lubricant condition for the propeller
shaft, bearings and suspension joints
(where possible), and the function of
all joints, bearings, etc.
Cargo and luggage
Take notice of the following infor-
mation about storage precautions,
cargo capacity and load:
Capacity and distribution

2486-2. Maintenance
6-2.Maintenance
■Repair and replacement
It is recommended that genuine Lexus parts
be used for repairs to ensure performance
of each system. If non-Lexus parts are used
in replacement or if a repair shop other than
a Lexus dealer perfor ms repairs, confirm
the warranty coverage.
■Allow inspection and repairs to be per-
formed by a Lexus dealer
●Lexus technicians are well-trained spe-
cialists and are kept up to date with the
latest service information. They are well
informed about the operations of all sys-
tems on your vehicle.
●Keep a copy of the repa ir order. It proves
that the maintenance that has been per-
formed is under warra nty coverage. If any
problem should arise while your vehicle is
under warranty, your Lexus dealer will
promptly take care of it.
General maintenance should be per-
formed on a daily basis. This can be
done by yourself or by a Lexus dealer.
Scheduled maintenance should be
performed at specified intervals
according to the maintenance sched-
ule.
For details about ma intenance items and
schedules, refer to the “Warranty and Ser-
vice Guide”, “Owner’s Manual Supple-
ment” or “Scheduled Maintenance”.
■Resetting the message indicating main-
tenance is required
After the required maintenance is pre-
formed according to the maintenance
schedule, please reset the message.
To reset the message, follow the procedures
described below:
1 Select on the multi-information dis-
play. ( P.76)
2 Press the or meter control
switch on the steeri ng wheel to select
“Vehicle Settings” then “Scheduled
Maintenance requirements
To ensure safe and economical driv-
ing, day-to-day care and regular
maintenance are essential. It is the
owner’s responsibility to perform
regular checks. Lexus recommends
the maintenance below.
WARNING
■If your vehicle is not properly main-
tained
Improper maintenanc e could result in
serious damage to the vehicle and possi-
ble death or serious injury.
■Handling of the battery
●Engine exhaust, some of its constitu-
ents, and a wide variety of automobile
components contain or emit chemicals
known to the State of California to
cause cancer and birth defects and
other reproductive harm. Work in a
well ventilated area.
●Oils, fuels and fluids contained in vehi-
cles as well as waste produced by
component wear contain or emit
chemicals known to the State of Cali-
fornia to cause cancer and birth
defects or other re productive harm.
Avoid exposure and wash any affected
area immediately.
●Battery posts, terminals and related
accessories contai n lead and lead
compounds which are known to cause
brain damage. Wash your hands after
handling. ( P.263)
General maintenance
Scheduled maintenance

2496-2. Maintenance
6
Maintenance and care
Maintenance”. (To confirm setting,
press .)
3 Select “Yes” and then press .
4 A message will be displayed on the
multi-information display when the
reset procedure has been completed.
You can perform some maintenance
procedures by yourself.
Please be aware that do-it-yourself
maintenance may affect warranty cov-
erage.
The use of Lexus repair manuals is recom-
mended.
For details about warra nty coverage, refer
to the separate “Owner’s Guide”, “War-
ranty and Service Guide”, “Owner’s Man-
ual Supplement” or “Warranty Booklet”.
Do-it-yourself maintenance
General maintenance
Listed below are the general main-
tenance items that should be per-
formed at the intervals specified in
the “Warranty and Service Guide”
or “Owner’s Manual Supplement”.
It is recommended that any prob-
lem you notice should be brought to
the attention of your Lexus dealer
or qualified service shop for advice.
WARNING
■If the engine is running
Turn the engine off and ensure that there
is adequate ventilati on before perform-
ing maintenance checks.
Engine compartment
ItemsCheck points
Battery
Check the indicator (if
equipped) and con-
nections. ( P.263)
Brake fluid
Is the brake fluid at the
correct level?
( P.262)
Engine/inter-
cooler coolant
Is the engine/inter-
cooler coolant at the
correct level?
( P.260)
Engine oil
Is the engine oil at the
correct level?
( P.258)
Exhaust system
There should not be
any fumes or strange
sounds.

2586-3. Do-it-yourself maintenance
RC300Fuse boxes ( P.278)
Battery ( P.263)
Engine oil level dipstick ( P.258)
Engine oil filler cap ( P.258)
Engine coolant reservoir ( P.260)
Brake fluid reservoir ( P.262)
Washer fluid tank ( P.264)
Electric cooling fans
Condenser ( P.262)
Intercooler radiator ( P.262)
Radiator ( P.262)
Intercooler coolant reservoir ( P.260)
With the engine at operating tempera-
ture and turned off, check the oil level
on the dipstick.
■Checking the engine oil
1 Park the vehicle on level ground.
After warming up the engine and
turning it off, wait more than 5 min-
utes for the oil to drain back into the
bottom of the engine.
A
B
C
D
E
F
G
H
I
J
K
L
Checking and adding the engine
oil

2596-3. Do-it-yourself maintenance
6
Maintenance and care
2Holding a rag under the end, pull
the dipstick out.
RC350/RC300 AWD
RC300
3 Wipe the dipstick clean.
4 Reinsert the dipstick fully.
5 Holding a rag under the end, pull
the dipstick out and check the oil
level.
Low
Normal
Excessive
The shape of the dipstick may differ
depending on the type of vehicle or
engine.
6Wipe the dipstick and reinsert it
fully.
■Checking the oil type and prepar-
ing the item needed
Make sure to check the oil type and
prepare the items needed before add-
ing oil.
 Engine oil selection
P.331
 Oil quantity (Low  Full)
1.6 qt. (1.5 L, 1.3 Imp. qt.)
 Item
Clean funnel
■Adding engine oil
If the oil level is below or near the low
level mark, add engine oil of the same
type as that already in the engine.
RC350/RC300 AWD
A
B
C

2606-3. Do-it-yourself maintenance
RC300
1 Remove the oil filler cap by turning
it counterclockwise.
2 Add engine oil slowly, checking the
dipstick.
3 Install the oil filler cap by turning it
clockwise.
■Engine oil consumption
A certain amount of engine oil will be con-
sumed while driving. In the following situa-
tions, oil consumption may increase, and
engine oil may need to be refilled in
between oil maintenance intervals.
●When the engine is new, for example
directly after purchasing the vehicle or
after replacing the engine
●If low quality oil or oil of an inappropriate
viscosity is used
●When driving at high engine speeds or
with a heavy load, or when driving while
accelerating or decelerating frequently
●When leaving the engine idling for a long
time, or when driving frequently through
heavy traffic
■After changing the engine oil
The engine oil maintena nce data should be
reset. Perform the following procedures:
1 Select on the multi-information dis-
play. ( P.76)
2 Press the or meter control
switch on the steering wheel to select
“Vehicle Settings” then “Oil Mainte-
nance”. (To confirm setting, press .) 3
Select “Yes” and then press .
4 A message is displayed on the
multi-information display.
The coolant level is satisfactory if it is
between the “FULL” and “LOW” lines
WARNING
■Used engine oil
●Used engine oil contains potentially
harmful contaminants which may
cause skin disorders such as inflamma-
tion and skin cancer, so care should be
taken to avoid prolonged and
repeated contact. To remove used
engine oil from your skin, wash thor-
oughly with soap and water.
●Dispose of used oil and filters only in a
safe and acceptable manner. Do not
dispose of used oil and filters in house-
hold trash, in sewers or onto the
ground. Call your Lexus dealer, ser-
vice station or auto parts store for
information concerning recycling or
disposal.
●Do not leave used engine oil within the
reach of children.
NOTICE
■To prevent serious engine damage
Check the oil level on a regular basis.
■When replacing the engine oil
●Be careful not to spill engine oil on the
vehicle components.
●Avoid overfilling, or the engine could
be damaged.
●Check the oil level on the dipstick
every time you re fill the vehicle.
●Be sure the engine o il filler cap is prop-
erly tightened.
Checking the coolant