
3TABLE OF CONTENTS
1
2
3
4
5
6
7
8
9
4-2. Driving proceduresEngine (ignition) switch .............. 125
Automatic transmission.............. 129
Turn signal lever............................. 134
Parking brake ................................. 135
ASC (Active Sound Control) ............................................................ 135
4-3. Operating the lights and wipers Headlight switch ............................ 137
Automatic High Beam ................ 139
Windshield wipers and washer ............................................................ 142
4-4. Refueling Opening the fuel tank cap......... 149
4-5. Using the driving support systems Lexus Safety System + ................ 152
PCS (Pre-Collision System)..... 156
LDA (Lane Departure Alert with  steering control) ......................... 163
Dynamic radar cruise control ............................................................ 170
Intuitive parking assist ................. 178
BSM (Blind Spot Monitor) ........ 184
Driving mode select switch....... 192
Driving assist systems .................. 194
4-6. Driving tips Winter driving tips ........................ 198
5-1. Remote Touch/Display Remote Touch ............................... 202
Center Display .............................. 204
5-2. Using the air conditioning system Automatic air conditioning system........................................................... 207Heated steering wheel/seat heat-
ers/seat ventilators..................... 214
5-3. Using the interior lights Interior lights list ............................. 217
5-4. Using the storage features List of storage  features ................ 219
Trunk features ................................. 221
5-5. Using the other interior features Other interior features ............... 222
Garage door opener .................. 224
Compass .......................................... 229
6-1. Maintenance and care Cleaning and protecting the vehi-cle exterior................................... 234
Cleaning and protecting the vehi- cle interior .................................... 237
6-2. Maintenance Maintenance re quirements .....240
General maintenance.................. 241
Emission inspection and mainte- nance (I/M) programs ............. 244
6-3. Do-it-yourself maintenance Do-it-yourself service precautions.......................................................... 245
Hood .................................................. 247
Positioning a floor jack ............... 247
Engine compartment ................. 249
Tires ................................................... 257
Tire inflation pressure................. 263
Wheels
 ............................................. 265
Air conditioning filter ................. 266
Electronic key battery ................ 267
5Interior features
6Maintenance and care 

2466-3. Do-it-yourself maintenance
Light bulbs 
( P.272)
• Bulb with same num-
ber and wattage rat-
ing as original
• Phillips-head screw- driver
• Flathead screw- driver
• Wrench
Radiator, con-
denser and inter-
cooler radiator 
(  P.254)
Tire inflation pres-
sure ( P.263)• Tire pressure gauge
• Compressed air 
source
Washer fluid 
( P.256)
• Water or washer 
fluid containing anti-
freeze (for winter 
use)
• Funnel (used only for  adding water or 
washer fluid)
WARNING
The engine compartment contains many 
mechanisms and fluids that may move 
suddenly, become hot, or become elec-
trically energized. To avoid death or seri-
ous injury, observe the following 
precautions.
■When working on the engine com-
partment
●Keep hands, clothi ng and tools away 
from the moving fans  and engine drive 
belt.
●Be careful not to touch the engine, 
radiator, exhaust manifold, etc. right 
after driving as they may be hot. Oil 
and other fluids may also be hot.
ItemsParts and tools●Do not leave anything that may burn 
easily, such as paper and rags, in the 
engine compartment.
●Do not smoke, cause sparks or expose 
an open flame to fuel or the battery. 
Fuel and battery fumes are flammable.
●Be extremely cautious when working 
on the battery. It contains poisonous 
and corrosive sulfuric acid.
■When working near the electric cool-
ing fans or radiator grille
Be sure the engine switch is off.
With the engine switch in IGNITION 
ON mode, the electric cooling fans may 
automatically start to run if the air condi-
tioning is on and/or the coolant tempera-
ture is high. ( P.254)
■Safety glasses
Wear safety glasses to prevent flying or 
falling material, fluid spray, etc. from get-
ting in your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter 
removed may cause excessive engine 
wear due to dirt in the air. 
![LEXUS RC300 2020  Owners Manual 3208-1. Specifications
■Oil capacity (Drain and refill [Reference*])
*: The engine oil capacity is a reference quantity to be used when changing the engine oil. Warm up and turn off the engine, wait LEXUS RC300 2020  Owners Manual 3208-1. Specifications
■Oil capacity (Drain and refill [Reference*])
*: The engine oil capacity is a reference quantity to be used when changing the engine oil. Warm up and turn off the engine, wait](/manual-img/36/58950/w960_58950-321.png)
3208-1. Specifications
■Oil capacity (Drain and refill [Reference*])
*: The engine oil capacity is a reference quantity to be used when changing the engine oil. Warm up and turn off the engine, wait more than 5 minutes, and check the oil level on the 
dipstick.
■Engine oil selection
“Toyota Genuine Motor Oil” is used in 
your Lexus vehicle. Use Lexus 
approved “Toyota Genuine Motor Oil” 
or equivalent to satisfy the following 
grade and viscosity.
Oil grade: ILSAC GF-5 multigrade 
engine oil
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the best choice for 
good fuel economy and good starting 
in cold weather. If SAE 0W-20 is not available, SAE 
5W-20 oil may be used. However, it 
must be replaced with SAE 0W-20 at 
the next oil change.
Fuel
Fuel typeUnleaded gasoline only
Octane Rating91 (Research Octane Number 96) or higher
Fuel tank capacity (Reference)17.5 gal. (66.3 L, 14.6 Imp. gal.)
Lubrication system
With filter
RC350
6.0 qt. (5.7 L, 5.0 Imp. qt.)
RC350 AWD/RC300 AWD
6.8 qt. (6.4 L, 5.6 Imp. qt.)
RC300
4.9 qt. (4.6 L, 4.0 Imp. qt.)
Without filter
RC350
5.8 qt. (5.5 L, 4.8 Imp. qt.)
RC350 AWD/RC300 AWD
6.3 qt. (6.0 L, 5.3 Imp. qt.)
RC300
4.5 qt. (4.3 L, 3.8 Imp. qt.) 

375Alphabetical Index
Alphabetical Index
A
A/CAir conditioning filter ............................... 266
Automatic air conditioning system ... 207
Micro dust and pollen filter.......................211
ABS (Anti-lock Brake System)................194 Warning light ...............................................285
Active Sound Control (ASC) ..................135
Adaptive Variable Suspension System 194
Air conditioning filter ................................. 266
Air conditioning system Air conditioning filter ............................... 266
Automatic air conditioning system ... 207
Micro dust and pollen filter.......................211
Airbags Airbag operating conditions................... 30
Airbag precautions for your child .........32
Correct driving posture .............................23
Curtain shield airbag operating condi-tions .................................................................. 30
Curtain shield airbag precautions ........32
Front passenger occupant classification  system ............................................................. 36
General airbag precautions ....................32
Locations of airbags.................................... 28
Modification and disposal of airbags . 35
Side airbag operating conditions ......... 30
Side airbag precautions .............................32
Side and curtain shield airbags operating  conditions...................................................... 30
Side and curtain shield airbags precau- tions ...................................................................32
SRS airbags ..................................................... 28
SRS warning light ......................................285
Alarm ....................................................................57 Warning buzzer ......................................... 284
Anchor brackets .......................................41, 49
Antennas (smart access system with  push-button start)........................................ 93
Anti-lock Brake System (ABS)................194 Warning light ...............................................285 Approach warning........................................ 175
ASC (Active Sound Control) ..................135
Assist grips ..................................................... 222
Audio system-linked display .......................74
Automatic air conditioning system ...... 207
Automatic headlight leveling system ... 138
Automatic High Beam ................................139
Automatic light control system................ 137
Automatic transmission ..............................129
M mode ............................................................132
Paddle shift switches ......................... 131, 132
Snow mode...................................................... 131
Average fuel economy................................... 71
Average vehicle speed .................................. 71
B
Back-up light Replacing light bulbs ................................ 272
Wattage ..........................................................328
Battery Battery checking ........................................255
If the battery is discharged ................... 308
Preparing and checking before winter........................................................................... 198
Warning light ...............................................284
Blind Spot Monitor (BSM)........................ 184
Boost gauge.......................................................72
Brake Fluid................................................................... 323
Parking brake ............................................... 135
Warning light ...............................................284
Brake assist ......................................................194
Break-in tips...................................................... 117
Brightness control Instrument panel light control................. 69
BSM (Blind Spot Monitor)........................ 184
C
Card key ............................................................ 82
Care Aluminum wheels ...................................... 234