2020 LEXUS RC300 checking oil

4TABLE OF CONTENTS
Checking and replacing fuses........................................................... 269
Headlight aim.................................. 271
Light bulbs ....................................... 272
7-1. Essential information Emergency flashers..................... 276
If your vehicle has to be stopped in an emergency ............................. 276
If the vehicle is trapped in rising water............................................... 277
7-2. Steps to take in an emergency If your vehicle needs to be towed........................................................... 279
If you think something is wrong ........................................................... 282
Fuel pump shut off system ........ 283
If a warning light turns on or a warn- ing buzzer sounds ..................... 284
If a warning message is displayed ........................................................... 292
If you have a flat tire..................... 296
If the engine wi ll not start .......... 303
If you lose your keys .................... 305
If the fuel filler door cannot be opened........................................... 305
If the electronic key does not oper- ate properly ................................. 306
If the vehicle battery is discharged ........................................................... 308
If your vehicle overheats ............. 311
If the vehicle becomes stuck .... 3158-1. Specifications
Maintenance data (fuel, oil level, etc.) .................................................. 318
Fuel information............................ 329
Tire information ............................. 331
8-2. Customization Customizable features ................341
8-3. Items to initialize Items to initialize ............................ 351
8-4. Certifications Certifications ................................. 352
9-1. For owners Reporting safety defects for U.S. owners ........................................... 362
Seat belt instructions for Canadian owners (in French) ................... 362
SRS airbag instructions for Cana- dian owners (in French) ......... 364
Headlight aim instructions for Canadian owners (in French).......................................................... 370
What to do if... (Troubleshooting) .......................................................... 372
Alphabetical Index ...................... 375
7When trouble arises
8Vehicle specifications
9For owners
Index

12Pictorial index
Windshield wipers .................................................................................................. P.142
Precautions for winter season ...................................................................................... P.198
To prevent freezing (windshield wiper de-icer)
*.................................................... P.211
Precautions against car wash ...................................................................................... P.235
Fuel filler door .......................................................................................................... P.149
Refueling method .............................................................................................................. P .149
Fuel type/fuel tank capacity ...... ...................................................................................P.320
Tires.......................................................................................................................... .. P.257
Tire size/inflation pressure ........................................................................................... P.324
Winter tires/tire chain ..................................................................................................... P.1 98
Checking/rotation/tire pressure warning system.............................................. P.257
Coping with flat tires........................................................................................................ P .296
Hood .......................................................................................................................... P.247
Opening ........................................................................................................................ ....... P.247
Engine oil ..................................................................................................................... .........P.320
Coping with overheating .................................................................................................. P.311
Warning messages .......................................................................................................... P.292
Headlights ................................................................................................................. P.13 7
Parking lights/daytime running lights............................................................... P.137
Turn signal lights ...................................................................................................... P.134
Cornering lights ...................................................................................................... P.137
Side marker lights ................................................................................................... P.137
Tail lights .................................................................................................................... P.137
Stop lights
Back up light
Shifting the shift lever to R .............................................................................................. P.13 0
License plate lights ................................................................................................. P.137
*:If equipped
Light bulbs of the exterior lights for driving
(Replacing method: P.272, Watts: P.328)
D
E
F
G
H
I
J
K
L
M
N
O

2506-3. Do-it-yourself maintenance
RC300Fuse boxes ( P.269)
Battery ( P.255)
Engine oil level dipstick ( P.250)
Engine oil filler cap ( P.250)
Engine coolant reservoir ( P.252)
Brake fluid reservoir ( P.254)
Washer fluid tank ( P.256)
Electric cooling fans
Condenser ( P.254)
Intercooler radiator ( P.254)
Radiator ( P.254)
Intercooler coolant reservoir ( P.252)
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

2516-3. 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.320
 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

2526-3. 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 maintenance data should be
reset. Perform the following procedures:
1
Select on the multi-information dis-
play. ( P.74)
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 refill the vehicle.
●Be sure the engine o il filler cap is prop-
erly tightened.
Checking the coolant

378Alphabetical Index
Ignition switch (engine switch) .............125
Overheating.................................................... 311
Tachometer ..................................................... 64
Engine coolant Capacity ........................................................... 321
Checking ....................................................... 252
Preparing and checking before winter.......................................................................... 198
Engine coolant temperature gauge ....... 64
Engine immobilizer system ........................ 56
Engine oil Capacity ......................................................... 320
Checking .......................................................250
Preparing and checking before winter.......................................................................... 198
Warning light ...............................................285
Engine oil maintenance data .................. 252
Engine oil pressure gauge ...........................72
Engine oil temperature gauge ...................72
Engine switch ..................................................125 Auto power off function ...........................128
Changing the engine switch modes.. 127
If your vehicle has to be stopped in an
emergency ................................................ 276
EPS (Electric Power Steering) ................194 Warning light ...............................................286
Event data recorder (EDR) ............................6
F
First-aid kit storage belt .............................. 221
Flat tire Tire pressure warning system .............260
Vehicles with a spare tire ...................... 296
Floor mats ...........................................................22
Fluid Automatic transmission .......................... 322
Brake.................................................... 254, 323
Washer ........................................................... 256
Footwell light ................................................... 217
Front passenger occupant classification system .............................................................. 36 Front position lights
Wattage ..........................................................328
Front seats Adjustment ....................................................... 97
Cleaning ......................................................... 237
Correct driving posture ............................ 23
Driving position memory ........................ 100
Head restraints............................................. 103
Memory recall function............................ 102
Power easy access system .................... 100
Seat heaters ....................................................214
Seat position memory ..............................100
Seat ventilators ..............................................214
Front side marker light Light switch .....................................................137
Front turn signal lights Replacing light bulbs ................................ 272
Turn signal lever ...........................................134
Wattage ..........................................................328
Fuel Capacity .........................................................320
Fuel gauge ........................................................ 64
Fuel pump shut off system.....................283
Information ....................................................329
Refueling.......................................................... 149
Type ..................................................................320
Warning light .............................................. 288
Fuel consumption Average fuel economy ................................ 71
Current fuel consumption .......................... 71
Fuel filler door If the fuel filler do or cannot be opened
......................................................................... 305
Refueling.......................................................... 149
Fuel gauge ......................................................... 64
Fuel pump shut off system........................ 283
Fuses ................................................................. 269
G
Garage door opener ................................. 224
Gauges ............................................................... 64
Gear Position ....................................................73

385Alphabetical Index
TransmissionAutomatic transmission ............................ 129
Driving mode select switch .................... 192
M mode ............................................................ 132
Paddle shift switches ......................... 131, 132
Snow mode ..................................................... 131
Trip meters ........................................................ 68
Trunk .................................................................... 89 Smart access system with push-button start ................................................................... 90
Trunk features................................................ 221
Trunk grip ........................................................... 91
Trunk light........................................................... 91
Trunk opener main switch ....................... 92
Trunk opener switch ................................... 90
Wireless remote control............................. 91
Trunk light ............................................................ 91
Turn signal lights Replacing light bulbs.................................272
Turn signal lever ...........................................134
Wattage.......................................................... 328
V
Vanity lights.................................................... 223
Vanity mirrors ............................................... 223
Variable Gear Ratio Steering (VGRS) 194
VDIM (Vehicle Dynami cs Integrated Man-
agement)........................................................195
Vehicle data recording .... ............................... 5
Vehicle Dynamics Integrated Manage- ment (VDIM)................................................195
Vehicle identification number ................. 318
Vehicle Stability Control (VSC) .............194
Vehicle sway warning display ....................73
Ventilators (seat ventilators)..................... 214
VGRS (Variable Gear Ratio Steering) 194
VSC (Vehicle Stabilit y Control) .............194
W
Warning buzzer
Open door warning.................................288 Warning buzzers
Approach warning......................................175
Brake Override System ........................ 286
Downshifting ....................................... 132, 133
Drive-Start Control.................................. 286
Electric power steering.......................... 286
High coolant temperature.....................284
LDA (Lane Departure Alert with steering control) ......................................................... 163
LDA (Lane Departure Alert) ............... 287
Low engine oil pressure........................ 285
Open door ............................................. 87, 88
Open window .................................................. 111
Parking brake ............................................. 286
Pre-collision braking ..................................157
Seat belt ......................................................... 288
Warning lights............................................... 284 ABS .................................................................. 285
Brake Override System ........................ 286
Brake system................................................284
Charging system........................................284
Drive-Start Control.................................. 286
Electric power steering.......................... 286
High coolant temperature.....................284
LDA indicator ..............................................287
Low engine oil pressure........................ 285
Low fuel level .............................................. 288
Malfunction indicator lamp .................. 285
Master warning light................................ 289
Open door warning ................................ 288
Parking brake indicator ......................... 286
Pre-collision system.................................. 287
Seat belt reminder light.......................... 288
Slip indicator ................................................. 287
SRS ................................................................... 285
Tire pressure ............................................... 289
Warning message display............................74
Warning messages ..................................... 292
Washer Checking .......................................................256
Preparing and checking before winter........................................................................... 198