transmission Lexus IS350 2021 / LEXUS 2021 IS 300, IS 350 (OM53E98U) User Guide

3387-2. Steps to take in an emergency
■Charging system warning light* (warning buzzer)
*: This light illuminates on the multi-information display.
■Low engine oil pressure warning light* (warning buzzer)
*: This light illuminates on the multi-information display.
■Malfunction indicator lamp (warning buzzer)
■SRS warning light (warning buzzer)
Warning lightDetails/Actions
Indicates a malfunction in the vehicle’s charging system
Immediately stop the vehicle in a safe place and contact your Lexus
dealer.
Warning lightDetails/Actions
Indicates that the engine oil pressure is too low
 Immediately stop the vehicle in a safe place and contact your Lexus
dealer.
Warning lightDetails/Actions
(U.S.A.)
or
(Canada)
Indicates a malfunction in:
 The electronic engine control system;
 The electronic throttle control system; or
 The electronic automatic transmission control system
 Immediately stop the vehicle in a safe place and contact your Lexus
dealer.
Warning lightDetails/Actions
Indicates a malfunction in:
 The SRS airbag system;
 The front passenger occupant classification system; or
 The seat belt pretensioner system
 Have the vehicle inspected by your Lexus dealer immediately.

3487-2. Steps to take in an emergency
Check the engine oil and change it if neces-
sary. After changing the engine oil, make
sure to reset the message. ( P.298)
■If “Oil Maintenance Required” is dis-
played
Indicates that the engine oil should be
changed.
Check and change the en gine oil, and oil fil-
ter by your Lexus deal er. After changing the
engine oil, make sure to reset the message.
(  P.298)
■If a message that in dicates 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 a message that in dicates the need for
referring to Owner’s Manual is dis-
played
●If any of the following messages are
shown on the multi-information display,
follow the instructions.
• “Engine Coolant Temp High” ( P.365)
• “High Transmission Fluid Temp” ( P.138)
●If any of the following messages are
shown on the multi-information display, it
may indicate a malfunction. Have the
vehicle inspected by your Lexus dealer
immediately.
• “Access System with Elec. Key Malfunc-
tion”
●If any of the following messages are
shown on the multi-information display, it
may indicate a malfunction. Immediately
stop the vehicle and contact your Lexus
dealer.
• “Braking Power Low”
• “Charging System Malfunction”
• “Oil Pressure Low”
NOTICE
■If “High Power Consumption Power
to Climate Temporarily Limited” is
displayed frequently
There is a possible malfunction relating
to the charging system or the battery
may be deteriorating. Have the vehicle
inspected by your Lexus dealer.

3697-2. Steps to take in an emergency
7
When trouble arises
WARNING
■When attempting to free a stuck vehi-
cle
If you choose to push the vehicle back
and forth to free it, make sure the sur-
rounding area is clear to avoid striking
other vehicles, objects or people. The
vehicle may also lunge forward or lunge
back suddenly as it becomes free. Use
extreme caution.
■When shifting the shift lever
Be careful not to shif t the shift lever with
the accelerator pedal depressed.
This may lead to unexpected rapid accel-
eration of the vehicle that may cause an
accident resulting in death or serious
injury.
NOTICE
■To avoid damaging the transmission
and other components
●Avoid spinning the rear wheels and
depressing the accelerator pedal
more than necessary.
●If the vehicle remains stuck even after
these procedures are performed, the
vehicle may require towing to be freed.

3778-1. Specifications
8
Vehicle specifications
*: The fluid capacity is a reference quantity.If replacement is necessary, contact your Lexus dealer.
*: Your Lexus vehicle is filled with “Toyota Genu ine Differential Gear Oil” at the factory.
Use Lexus approved “Toyota Ge nuine Differential Gear Oil” or an equivalent oil of
matching quality to satisfy th e above specification. Please contact your Lexus dealer for
further details.
IS350 AWD/IS350/IS300 AWD/IS300 (veh icles without LSD [Limited Slip
Differential])
Automatic transmission
Fluid capacity*
IS350 (2WD)10.0 qt. (9.5 L, 8.4 Imp. qt.)
IS350
AWD/IS300
AWD (AWD)
10.6 qt. (10.0 L, 8.8 Imp. qt.)
IS3009.2 qt. (8.7 L, 7.7 Imp. qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Automatic transmission fluid type
Using transmission fluid other than the above type may cause abnormal noise or vibra-
tion, or damage the transmission of your vehicle.
Front differential (AWD models)
Oil capacity0.74 qt. (0.70 L, 0.61 Imp. qt.)
Oil type and viscosity*
Toyota Genuine Differential gear oil GL-5 or equiva-
lent
Above 0°F (-18°C): SAE90
Below 0°F (-18°C): SAE80W or SAE80W-90
Rear differential
Oil capacity1.42 qt. (1.35 L, 1.19 Imp. qt.)
Oil type and viscosity*Toyota Genuine Differential gear oil LT 75W-85
GL-5 or equivalent

421Alphabetical Index
Alphabetical Index
A
A/CAir conditioning filter .................................315
Automatic air conditioning system ... 253
Micro dust and pollen filter...................258
ABS (Anti-lock Brake System).............. 238 Warning light ............................................... 339
ACA (Active Cornering Assist) ........... 238
Active Cornering Assist (ACA) ........... 238
Active Sound Control (ASC) .................. 147
Adaptive Variable Suspension system238
AHB (Automatic High Beam) .................. 151
Air conditioning filter ...................................315
Air conditioning system Air conditioning filter .................................315
Automatic air conditioning system ... 253
Micro dust and pollen filter...................258
Airbags Airbag operating conditions................... 30
Airbag precautions for your child ........ 33
Correct driving posture .............................23
Curtain shield airbag operating condi- tions .................................................................. 30
Curtain shield airbag precautions ....... 33
Front passenger occupant classification system ............................................................. 36
General airbag precautions ................... 33
Locations of airbags.................................... 28
Modification and disposal of airbags . 35
Side airbag operating conditions ......... 30
Side airbag precautions ............................ 33
Side and curtain shield airbags operating conditions...................................................... 30
Side and curtain shield airbags precau- tions .................................................................. 33
SRS airbags ..................................................... 28
SRS warning light ......................................338
Alarm ................................................................... 62 Warning buzzer ......................................... 337
Anchor brackets .......................................42, 51 Antennas (smart acc
ess system with
push-button start)........................................ 99
Anti-lock Brake System (ABS).............. 238 Warning light ...............................................339
Approach warning........................................ 197
Armrest............................................................ 270
ASC (Active Sound Control) .................. 147
Assist grips ..................................................... 270
Audio system-linked display ........................81
Automatic air conditioning system ...... 253
Automatic headlight leveling system ... 150
Automatic High Beam ................................. 151
Automatic light control system................149
Automatic transmission ............................. 138 M mode ............................................................. 141
Paddle shift switches .........................140, 141
Snow mode.................................................... 140
Average fuel economy..................................79
Average vehicle speed .................................79
B
Back-up lights Replacing light bulbs ................................ 322
Battery If the battery is discharged ..................... 361
Preparing and checking before winter.......................................................................... 243
Warning light .............................................. 338
Blind Spot Monitor (BSM)....................... 202
Boost gauge...................................................... 80
Brake Brake hold ...................................................... 146
Fluid......................................................300, 378
Parking brake ................................................143
Warning light ............................................... 337
Brake assist .................................................... 238
Break-in tips.....................................................125
Brightness control Instrument panel light control................. 75
BSM (Blind Spot Monitor)....................... 202

424Alphabetical Index
Hood................................................................ 293
How to start the engine............................134
Identification number ............................... 373
If the engine will not start ....................... 357
If your vehicle has to be stopped in an
emergency ................................................ 328
Ignition switch (engine switch) ............. 134
Overheating.................................................365
Tachometer ............................................... 71, 72
Engine coolant Capacity ......................................................... 376
Checking .......................................................298
Preparing and checking before winter......................................................................... 243
Engine coolant temperature gauge . 71, 72
Engine immobilizer system ........................ 60
Engine oil Capacity ......................................................... 374
Checking ....................................................... 296
Preparing and checking before winter......................................................................... 243
Warning light ...............................................338
Engine oil maintenance data .................. 298
Engine oil pressure gauge .......................... 80
Engine oil temperature gauge .................. 80
Engine switch ..................................................134 Auto power off function ...........................136
Changing the engine switch modes..136
If your vehicle has to be stopped in an
emergency ................................................ 328
Enhanced Vehicle Stability Control (Enhanced VSC) ...................................... 238
Enhanced VSC (Enhanced Vehicle Stabil- ity Control) .................................................. 238
EPS (Electric Power Steering) .............. 238 Warning light ...............................................340
Event data recorder (EDR) ............................7
F
First-aid kit storage belt ............................ 268
Flat tire Tire pressure warning system ............ 305 Vehicles with a spare tire.......................349
Floor mats ...........................................................22
Fluid Automatic transmission .......................... 377
Brake ................................................................378
Washer ...........................................................302
Footwell lights ............................................... 263 Wattage ........................................................... 381
Front passenger occupant classification system .............................................................. 36
Front seats Adjustment ..................................................... 106
Cleaning .........................................................283
Correct driving posture ............................ 23
Driving position memory ........................ 108
Head restraints................................................. 111
Memory recall function............................ 109
Power easy access system .................... 108
Seat heaters ....................................................261
Seat position memory ..............................108
Seat ventilators ..............................................261
Front side marker light Light switch .................................................... 149
Replacing light bulbs ................................ 322
Front turn signal lights Replacing light bulbs .................... 322, 323
Turn signal lever ...........................................142
Wattage ........................................................... 381
Fuel Capacity ......................................................... 374
Fuel gauge ..................................................71, 72
Fuel pump shut off system.....................336
Information ....................................................382
Refueling............................................................ 161
Type .................................................................. 374
Warning light .............................................. 340
Fuel consumption Average fuel economy .............................. 79
Current fuel consumption ........................ 79
Fuel filler door If the fuel filler do or cannot be opened
......................................................................... 359

429Alphabetical Index
Pregnant women, proper seat belt use.............................................................................24
Reminder light and buzzer ...................340
Seat belt extender ........................................ 25
Seat belt pretensioners ...............................27
SRS warning light ......................................338
Seat heaters ..................................................... 261
Seat position memory................................. 108
Seat ventilators ............................................... 261
Seating capacity.............................................132
Seats Adjustment..................................................... 106
Adjustment precautions .......................... 106
Child seats/child restraint system installa-tion ...................................................................... 41
Cleaning......................................................... 283
Driving position memory........................ 108
Head restraints ................................................ 111
Power easy access system .................... 108
Properly sitting in the seat .........................23
Seat heaters .................................................... 261
Seat position memory .............................. 108
Seat ventilators.............................................. 261
Sensor Automatic headlight system...................149
Automatic High Beam system............... 151
Inside rear view mirror............................... 115
Intuitive parking assist................................210
LTA (Lane Tracing Assist)..................... 180
Parking Support Brake function (rear-crossing vehicles)...................... 232
Parking Support Brake function (static objects).........................................................227
Radar sensor..................................... 164, 204
Rain-sensing windshield wipers.......... 159
RCTA ................................................................ 217
Service reminder message ..................... 286
Shift lever Automatic transmission ........................... 138
Side airbags ...................................................... 28
Side marker lights Light switch .....................................................149 Replacing light bulbs ................................ 322
Side mirrors Adjustment ....................................................... 116
BSM (Blind Sport Monitor)..................202
Folding................................................................ 117
Linked mirror functi on when reversing
............................................................................. 116
Mirror position memory ..........................108
RCTA function ..............................................216
Side turn signal lights Replacing light bulbs ................................ 322
Turn signal lever ...........................................142
Side windows ................................................... 118
Smart access system with push-button startAntenna location ........................................... 99
Entry functions ................................................ 92
Starting the engine ......................................134
Snow mode ..................................................... 140
Snow tires ....................................................... 243
Spare tire......................................................... 349 Storage location ........................................ 350
Spark plug ...................................................... 376
Specifications ................................................ 372
Speedometer .................................... 71, 72, 80
Steering lock Column lock release ..................................134
Steering lock system warning message............................................................................134
Steering wheel Adjustment ....................................................... 113
Heated steering wheel ..............................261
Meter control switches ...............................77
Power easy access system .................... 108
Steering wheel position memory........108
Stop lights Replacing light bulbs ................................ 322
Storage features .......................................... 266
Stuck If the vehicle becomes stuck ............... 368
Sun visors .......................................................... 271

431Alphabetical Index
TiresChains ............................................................. 244
Checking .......................................................303
If you have a flat tire .................................. 349
Inflation pressure.......................................... 312
Information ....................................................384
Replacing ....................................................... 349
Rotating tires ............................................... 305
Size.................................................................... 379
Snow tires ...................................................... 243
Spare tire........................................................ 349
Tire inflation pressu re display function
........................................................................ 305
Tire pressure warning system ............ 305
Warning light .................................................341
Tools.................................................................. 350
Top tether strap.................................................51
Total load capacity ...................................... 372
Towing Dinghy towing ...............................................133
Emergency towing .....................................331
Towing eyelet .............................................. 333
Trailer towing ................................................. 132
TRAC (Traction Control) ........................ 238
Traction Control (TRAC) ........................ 238
Trailer towing ..................................................132
Transmission Automatic transmission ........................... 138
Driving mode select switch .................. 236
M mode ..............................................................141
Paddle shift switches ......................... 140, 141
Snow mode ................................................... 140
Trip meters .........................................................75
Trunk .................................................................... 96 Internal trunk release lever ...................... 98
Smart access system with push-button start ................................................................... 97
Trunk features..............................................268
Trunk lid light................................................... 97
Trunk light......................................................... 97
Trunk opener main switch ....................... 98
Trunk opener switch ................................... 97 Wireless remote control ........................... 97
Trunk lid light .....................................................97
Trunk light ...........................................................97 Wattage ........................................................... 381
Turn signal lights Replacing light bulbs ................................ 322
Turn signal lever ...........................................142
V
Vanity lights...................................................... 271Wattage ........................................................... 381
Vanity mirrors ................................................. 271
VDIM (Vehicle Dynamics Integrated Man- agement)...................................................... 238
Vehicle data recording ....................................6
Vehicle Dynamics Integrated Manage- ment (VDIM).............................................. 238
Vehicle identification number ................ 372
Vehicle Stability Control (VSC) ........... 238
Ventilators (seat ventilators).....................261
VSC (Vehicle Stability Control) ........... 238
W
Warning buzzers ABS ...................................................................339
Airbags........................................................... 338
Approach warning......................................197
Brake hold .....................................................343
Brake Override System .........................339
Brake system................................................ 337
Charging system....................................... 338
Downshifting ......................................... 141, 142
Drive-Start Control...................................339
Electric power steering.......................... 340
Engine............................................................. 338
Hands off steering wheel warning (LTA)........................................................................... 188
High coolant temperature..................... 337
Intuitive parking assist ..................... 215, 341
Low engine oil pressure........................ 338
LTA (Lane Tracing Assist) 180, 183, 341