2020 LEXUS RX350 automatic transmission

4568-1. Specifications
*: The fluid capacity is a reference quantity.If replacement is necessary, contact your Lexus dealer.
Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at the fac-
tory. Use Lexus approved “Toyota Genuine Di fferential Gear Oil” or an equivalent
of matching quality to satisfy the above specification. Please contact your Lexus
dealer for further details.
Electrical system (battery)
Open voltage at 68°F (20°C):
12.6 V or higher: Fully charged
12.2  12.4 V: Half charged
12.0 V or lower: Discharged
(Turn the engine switch off and turn on the head-
lights for 20 to 30 seconds.)
Charging rates5 A max.
Automatic transmission
Fluid capacity*7.2 qt. (6.8 L, 6.0 Imp. qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause deterioration in
shift quality, locking up of your transmission accompanied by vibration, and ultimately
damage the transmission of your vehicle.
Transfer (AWD models)
Oil capacity0.8 qt. (0.8 L, 0.7 Imp. qt.)
Oil type and viscosityToyota Genuine Differential gear oil LT 75W-85 GL-5
or equivalent
Rear differential (AWD models)
Oil capacity0.5 qt. (0.5 L, 0.4 Imp. qt.)
Oil type and viscosityToyota Genuine Differential gear oil LT 75W-85
GL-5 or equivalent

503Alphabetical Index
Alphabetical Index
A
A/CAir conditioning filter ...............................386
Front automatic air conditioning system......................................................................... 296
Micro dust and pollen filter...................303
Rear automatic air conditioning system ......................................................................... 307
ABS (Anti-lock Brake System)...............277 Warning light .................................................415
ACA (Active Cornering Assist) ........... 278
Active Cornering Assist (ACA) ........... 278
Adaptive Front-lighting System (AFS) .192
Adaptive Variable Suspension System278
AFS (Adaptive Front-lighting System) .192
Air conditioning filter ................................. 386
Air conditioning system Air conditioning filter ...............................386
Front automatic air conditioning system......................................................................... 296
Micro dust and pollen filter...................303
Rear automatic air conditioning system ......................................................................... 307
Airbags Airbag operating conditions................... 33
Airbag precautions for your child ........ 36
Correct driving posture ............................ 25
Curtain shield airbag operating condi- tions .................................................................. 33
Curtain shield airbag precautions ....... 36
Front passenger occupant classification system ............................................................. 39
General airbag precautions ................... 36
Locations of airbags.................................... 30
Modification and disposal of airbags . 38
Side airbag operating conditions ......... 33
Side airbag precautions ............................ 36
Side and curtain shield airbags operating conditions...................................................... 33
Side and curtain shield airbags precau- tions .................................................................. 36 SRS airbags......................................................30
SRS warning light.........................................414
Alarm ....................................................................67 Warning buzzer ...........................................413
Anchor brackets ..................................... 46, 57
Antennas (smart acc ess system with
push-button start)........................................ 113
Anti-lock Brake System (ABS)...............277 Warning light ................................................ 415
Approach warning...................................... 235
Armrest............................................................ 335
Assist grips ..................................................... 335
Audio system-linked display ...................... 83
Automatic headlight leveling system ..... 191
Automatic High Beam ................................193
Automatic light control system............... 190
Automatic transmission ............................. 180 M mode ........................................................... 183
Paddle shift switches .......................182, 183
Auxiliary boxes ................................... 321, 324
Average fuel economy................................. 80
Average vehicle speed ................................ 80
AWD Control....................................................81
B
Back door .......................................................... 101
Back-up light Wattage ......................................................... 458
Back-up lights Replacing light bulbs .....................395, 401
Battery Battery checking ....................................... 369
If the battery is discharged .................... 443
Preparing and checking before winter..........................................................................283
Warning light .................................................414
Blind Spot Monitor (BSM)....................... 239
Bottle holders ................................................ 320
Brake Brake hold ......................................................188
Fluid...................................................... 368, 457
Parking brake ............................................... 185

506Alphabetical Index
If you lose your keys.................................440
If you think something is wrong .............411
If your vehicle becomes stuck............. 449
If your vehicle has to be stopped in an
emergency ................................................404
If your vehicle needs to be towed ..... 407
If your vehicle overheats ........................ 447
Engine ACCESSORY mode ............................... 179
Compartment .............................................365
Engine switch................................................. 176
Fuel pump shut off system ...................... 412
Hood................................................................ 363
How to start the engine............................ 176
Identification number ............................... 453
If the engine will not start .......................438
If your vehicle has to be stopped in an
emergency ................................................404
Ignition switch (engine switch) ............. 176
Overheating................................................. 447
Tachometer ..................................................... 75
Engine coolant Capacity .........................................................455
Checking ....................................................... 367
Preparing and checking before winter......................................................................... 283
Engine coolant temperature gauge ........75
Engine immobilizer system ........................ 64
Engine oil Capacity ......................................................... 454
Checking .......................................................365
Preparing and checking before winter......................................................................... 283
Warning light ................................................. 414
Engine oil maintenance data .................. 367
Engine switch .................................................. 176 Auto power off function ........................... 179
Changing the engine switch modes.. 179
If your vehicle has to be stopped in an
emergency ................................................404
EPS (Electric Power Steering) .............. 278 Warning light .................................................415 Event data recorder (E
DR) ............................7
F
Flat tire
Tire pressure warning system ............. 373
Vehicles with a spare tire....................... 426
Floor mats .......................................................... 24
Fluid Automatic transmission ......................... 456
Brake ................................................................ 457
Washer ...........................................................370
Fog lights Switch................................................................ 195
Footwell light ...................................................313
Front automatic air conditioning system .......................................................................... 296
Front fog lights Replacing light bulbs ............................... 395
Front passenger footwell hooks ............ 338
Front passenger occupant classification system .............................................................. 39
Front seats Adjustment ...................................................... 122
Cleaning .........................................................353
Correct driving posture ............................ 25
Driving position memory .........................134
Head restraints..............................................137
Memory recall function............................ 136
Power easy access system .....................134
Seat heaters ................................................... 310
Seat position memory ...............................134
Seat ventilators ............................................. 310
Front side marker light Light switch .................................................... 190
Replacing light bulbs ............................... 395
Front side marker lights Replacing light bulbs ............................... 395
Wattage ......................................................... 458
Front turn signal lights Replacing light bulbs ................... 395, 397
Turn signal lever .......................................... 184
Wattage ......................................................... 458

511Alphabetical Index
Rear side marker lightsLight switch .................................................... 190
Replacing light bulbs................................395
Rear turn signal lights Replacing light bulbs................... 395, 399
Turn signal lever .......................................... 184
Wattage..........................................................458
Rear view mirror Inside rear view mirror................................141
Outside rear view mirrors ...................... 142
Rear window defogger ............................. 298
Rear window wiper.....................................200
Refueling Capacity ......................................................... 454
Fuel types....................................................... 454
If the fuel filler door cannot be opened.........................................................................440
Opening the fuel tank cap .................... 202
Remote Touch .............................................. 290
Replacing Electronic key battery..............................389
Fuses ..................................................................391
Light bulbs..................................................... 394
Tires .................................................................. 426
Resetting the message indicating mainte- nance is required ...................................... 356
Rev indicator .....................................................76
Rev peak.............................................................. 77
Road Sign Assist ...........................................227
RSA (Road Sign Assist) .............................227
S
Seat belt reminder ligh t...............................416
Seat belts............................................................ 26 Automatic Locking Retractor ................ 28
Child restraint system installation ......... 46
Cleaning and maintaining the seat belt.........................................................................353
Emergency Locking Retractor .............. 28
How to wear your seat belt ......................27
How your child should wear the seat belt .............................................................................27 Pregnant women, proper seat belt use
............................................................................. 26
Reminder light and buzzer .................... 416
Seat belt extender......................................... 27
Seat belt pretensioners .............................. 29
SRS warning light.........................................414
Seat heaters .................................................... 310
Seat position memory..................................134
Seat ventilators .............................................. 310
Seating capacity.............................................164
Seats Adjustment ............................................122, 124
Adjustment precautions .................122, 123
Child seats/child restraint system installa-tion .................................................................... 45
Cleaning .........................................................353
Driving position memory .........................134
Folding down the rear seatbacks ........124
Head restraints..............................................137
Power easy access system .....................134
Properly sitting in the seat ........................ 25
Seat heaters ................................................... 310
Seat position memory ...............................134
Seat ventilators ............................................. 310
Sensor Automatic headlight system .................. 190
Automatic High Beam system ............. 193
Inside rear view mirror ............................... 141
Intuitive parking assist .............................. 247
LTA (Lane Tracing Assist) ..................... 218
Parking Support Brake function (rear-crossing vehicles) ...................... 270
Parking Support Brake function (static objects) ........................................................265
Radar sensor ....................................205, 242
Rain-sensing windshield wipers .......... 198
RCTA...............................................................255
Service reminder message ..................... 356
Shift lever Automatic transmission ........................... 180
Shift lever light ................................................313
Side airbags ...................................................... 30

513Alphabetical Index
Seat heater switches ................................. 310
Seat ventilator switches ........................... 310
“SOS” button .................................................. 60
Tilt and telescopic steering control switch.......................................................................... 140
Tire pressure warning reset switch ... 381
Vehicle-to-vehicle di stance switch .. 230
VSC OFF switch ....................................... 279
Window lock switch .................................. 147
Windshield wiper and washer switch196
Windshield wiper de-icer switch ....... 301
T
Tachometer........................................................75 Rev indicator ................................................... 76
Rev peak ............................................................ 77
Tail lights Light switch .................................................... 190
Replacing light bulbs................................395
The Secondary Collision Brake ............ 278
Theft deterrent system Alarm .................................................................. 67
Engine immobilizer system ..................... 64
Tire inflation pressure Maintenance data...................................... 457
Tire inflation pressu re display function
......................................................................... 373
Warning light ................................................. 417
Tire information ..............................................461 Glossary.........................................................465
Size.................................................................... 463
Tire identification number ..................... 462
Uniform Tire Quality Grading............ 463
Tire pressure display .................................. 373
Tire pressure warning system Function .......................................................... 373
Initializing ........................................................ 381
Installing tire pressure warning valves and transmitters ..................................... 380
Registering ID codes ............................... 382
Warning light ................................................. 417 Tires
Chains .............................................................284
Checking .........................................................371
If you have a flat tire .................................. 426
Inflation pressure ....................................... 383
Information ..................................................... 461
Replacing ....................................................... 426
Rotating tires ................................................ 373
Size .................................................................... 457
Snow tires ......................................................283
Spare tire ........................................................ 426
Tire inflation pressure display function.......................................................................... 373
Tire pressure warning system ............. 373
Warning light .................................................417
Tools...................................................................427
Top tether strap............................................... 57
Total load capacity ...................................... 452
Towing Dinghy towing ...............................................175
Emergency towing....................................407
Towing eyelet................................................ 410
Trailer towing ................................................ 165
TRAC (Traction Control) ........................ 278
Traction Control (TRAC) ........................ 278
Trailer Sway Control.................................. 278
Trailer towing ..................................................165
Transmission Automatic transmission ........................... 180
Driving mode select switch .................. 274
M mode ........................................................... 183
Paddle shift switches .......................182, 183
Trip meters ........................................................ 78
Turn signal lights Replacing light bulbs ............................... 395
Turn signal lever .......................................... 184
Wattage ......................................................... 458
U
USB charging ports.................................... 327