2021 LEXUS RX350 bulb

3926-3. Do-it-yourself maintenance
WARNING
■To prevent injury
Before performing any light bulb
replacement procedure, be sure to turn
the engine switch off. Failure to do so
may result in burns from hot components
or a part of your bo dy may get caught on
an operating component, possibly caus-
ing serious injury.
■Replacing light bulbs
●Turn off the lights. Do not attempt to
replace the bulb immediately after
turning off the lights.
The bulbs become very hot and may
cause burns.
●Do not touch the glass portion of the
light bulb with bare hands. When it is
unavoidable to hold the glass portion,
use and hold with a clean dry cloth to
avoid getting moisture and oils on the
bulb.
Also, if the bulb is scratched or
dropped, it may blow out or crack.
●Fully install light bulbs and any parts
used to secure them. Failure to do so
may result in heat damage, fire, or
water entering the headlight unit. This
may damage the headlights or cause
condensation to build up on the lens.
●Do not attempt to repair or disassem-
ble the light bulbs, connectors, electric
circuits or component parts.
Doing so may result in death or serious
injury due to electric shock.
■To prevent damage or fire
●Make sure bulbs are fully seated and
locked.
●Check the wattage of the bulb before
installing to prev ent heat damage.

4498-1. Specifications
8
Vehicle specifications
Type B
A: Wedge base bulbs (amber)
B: Wedge base bulbs (clear)
*1: Vehicles with sing le-beam headlights
*2: Vehicles without door trim ornament lights
Tire size235/55R20 102V, T165/90D18 107M (spare)
Tire inflation pressure
(Recommended cold tire
inflation pressure)
Front tire
33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Rear tire
33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Spare tire
60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
Driving at high speeds (above 100 mph [160 km/h]) (in
countries where such speeds are permitted by law)
Add 11 psi (70 kPa, 0.7 kgf/cm
2 or bar) to the front and rear
tires. Never exceed the maximum cold tire inflation pres-
sure indicated on the tire sidewall.
Wheel size20  8J, 18  4T (spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Light bulbs
Light bulbsBulb No.WType
Exterior
Front side marker lights*1W5W5B
Front turn signal lights*17444NA28/8A
Rear turn signal lights*1WY21W21A
Back-up lights*192116B
InteriorDoor courtesy lights*25B
Vanity lights8B

493Alphabetical Index
Alphabetical Index
A
A/CAir conditioning filter ............................... 376
Front automatic air conditioning system......................................................................... 292
Front seat concentr ated airflow mode
(S-FLOW)................................................ 300
Micro dust and pollen filter................... 299
Rear automatic air conditioning system .........................................................................303
ABS (Anti-lock Brake System)...............274 Warning light ...............................................405
ACA (Active Cornering Assist) ........... 275
Active Cornering Assist (ACA) ........... 275
Adaptive Front-lighting System (AFS) 190
Adaptive Variable Suspension System275
AFS (Adaptive Front-lighting System) 190
AHB (Automatic High Beam) .................. 191
Air conditioning filter ................................. 376
Air conditioning system Air conditioning filter ............................... 376
Front automatic air conditioning system......................................................................... 292
Front seat concentr ated airflow mode
(S-FLOW)................................................ 300
Micro dust and pollen filter................... 299
Rear automatic air conditioning system .........................................................................303
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 shie
ld airbags operating
conditions ...................................................... 33
Side and curtain shield airbags precau- tions .................................................................. 36
SRS airbags......................................................30
SRS warning light...................................... 404
Alarm ................................................................... 68 Warning buzzer ........................................ 403
Anchor brackets ..................................... 46, 57
Antennas (smart acc ess system with
push-button start)........................................ 115
Anti-lock Brake System (ABS)...............274 Warning light .............................................. 405
Approach warning...................................... 233
Armrest............................................................ 330
Assist grips ..................................................... 330
Audio system-linked display ...................... 85
Automatic headlight leveling system ... 189
Automatic High Beam ................................. 191
Automatic light control system............... 188
Automatic transmission ..............................178 M mode ............................................................. 181
Paddle shift switches ........................ 180, 181
Auxiliary boxes ..................................... 317, 319
Average fuel economy................................. 82
Average vehicle speed ................................ 82
AWD Control.................................................. 83
B
Back door ........................................................ 103
Back-up light Wattage ..........................................................449
Back-up lights Replacing light bulbs .....................385, 391
Battery Battery checking ........................................363
If the battery is discharged ....................433
Preparing and checking before winter......................................................................... 280
Warning light .............................................. 404
Blind Spot Monitor (BSM)....................... 236

494Alphabetical Index
Bottle holders..................................................316
BrakeBrake hold...................................................... 186
Fluid ...................................................... 362, 447
Parking brake ............................................... 183
Warning light ...............................................403
Brake assist .....................................................274
Break-in tips.................................................... 155
Brightness control Instrument panel light control ................80
BSM (Blind Spot Monitor)....................... 236
Buzzer Hands off steering wheel warning (LTA)......................................................................... 223
C
Care Exterior ........................................................... 344
Interior ............................................................. 347
Seat belts........................................................ 347
Wheels and wheel ornaments............ 344
Cargo capacity.....................................159, 162
Cargo hooks ................................................... 317
Cargo net hooks ............................................ 317
Center Display .............................................288
Chains ................................................................281
Child restraint system Fixed with a LATCH system .................. 54
Fixed with a seat belt...................................50
Front passenger occupant classification system ............................................................. 39
Points to remember .................................... 45
Riding with children ..................................... 45
Types of child restraint system installation method ........................................................... 46
Using an anchor bracket .......................... 57
Child safety Airbag precautions...................................... 36
Battery precautions ......................364, 436
Child restraint system................................. 46
Heated steering wheel and seat heater precautions................................................306 How your child should wear the seat belt
............................................................................. 27
Moon roof precautions............................ 148
Panoramic moon roof precautions ..... 151
Power back door precautions ............. 103
Power window lock switch .................... 146
Power window precautions .................. 145
Rear door child-protectors ................... 102
Seat belt extender precautions.............. 27
Seat belt precautions .................................. 45
Child-protectors............................................102
Cleaning Exterior............................................................ 344
Interior ............................................................. 347
Radar sensor ................................................203
Seat belts ........................................................ 347
Wheels and wheel ornaments ............344
Clock ..........................................................77, 331
Coat hooks.......................................................331
Coin box............................................................316
Compass ......................................................... 340
Condenser ..................................................... 362
Console box ....................................................314
Consumption screen .................................... 92
Cooling system...............................................361 Engine overheating................................... 437
Cornering lights ............................................ 190 Replacing light bulbs ............................... 385
Cruise control Dynamic radar cruise control with full-speed range ...................................... 227
Cup holders .....................................................315
Current fuel consumption .......................... 82
Curtain shield airbags .................................. 30
Customizable features ................................461
D
Daytime running light system .................. 188
Defogger Outside rear view mirrors..................... 294
Rear window ................................................ 294
Windshield .................................................... 294

496Alphabetical Index
If the vehicle is trapped in rising water.........................................................................395
If you have a flat tire ....................................416
If you lose your keys.................................430
If you think something is wrong .......... 401
If your vehicle becomes stuck............. 439
If your vehicle has to be stopped in an
emergency ................................................ 394
If your vehicle needs to be towed ..... 397
If your vehicle overheats ........................ 437
Engine ACCESSORY mode ............................... 177
Compartment .............................................359
Engine switch................................................. 174
Fuel pump shut off system .................... 402
Hood................................................................ 357
How to start the engine............................ 174
Identification number ............................... 443
If the engine will not start ....................... 428
If your vehicle has to be stopped in an
emergency ................................................ 394
Ignition switch (engine switch) ............. 174
Overheating................................................. 437
Tachometer ...................................................... 77
Engine coolant Capacity ......................................................... 446
Checking .........................................................361
Preparing and checking before winter.........................................................................280
Engine coolant temperature gauge ........ 77
Engine immobilizer system ........................ 66
Engine oil Capacity ......................................................... 444
Checking .......................................................359
Preparing and checking before winter.........................................................................280
Warning light ...............................................404
Engine oil maintenance data ....................361
Engine switch .................................................. 174 Auto power off function ........................... 177
Changing the engine switch modes.. 177 If your vehicle has to be stopped in an
emergency .................................................394
EPS (Electric Power Steering) .............. 275 Warning light .............................................. 405
Event data recorder (E DR) ............................7
F
Flat tire
Tire pressure warning system ............. 367
Vehicles with a spare tire........................ 416
Floor mats .......................................................... 24
Fluid Automatic transmission .......................... 447
Brake ................................................................ 447
Washer ...........................................................364
Fog lights Switch................................................................ 194
Footwell light ................................................. 309
Front automatic air conditioning system .......................................................................... 292
Front fog lights Replacing light bulbs ............................... 385
Front passenger footwell hooks ............ 333
Front passenger occupant classification system .............................................................. 39
Front seats Adjustment ....................................................... 121
Cleaning ......................................................... 347
Correct driving posture ............................ 25
Driving position memory ........................ 133
Head restraints............................................. 136
Memory recall function............................ 135
Power easy access system .................... 133
Seat heaters ................................................. 306
Seat position memory .............................. 133
Seat ventilators ........................................... 306
Front side marker light Light switch ....................................................188
Replacing light bulbs ............................... 385
Front side marker lights Replacing light bulbs ............................... 385
Wattage ..........................................................449

497Alphabetical Index
Front turn signal lightsReplacing light bulbs................... 385, 387
Turn signal lever ...........................................182
Wattage.......................................................... 449
Fuel Capacity ......................................................... 444
Fuel gauge ........................................................ 77
Fuel pump shut off system .................... 402
Information ....................................................450
Refueling ........................................................200
Type.................................................................. 444
Warning light ...............................................406
Fuel consumption Average fuel economy .............................. 82
Current fuel consumption........................ 82
Fuel filler door If the fuel filler door cannot be opened.........................................................................430
Refueling ........................................................200
Fuel gauge .......................................................... 77
Fuel pump shut off system........................ 402
Fuses .................................................................. 381
G
Garage door opener ................................. 334
Gauges ................................................................ 77
G-force............................................................... 84
Glove box .........................................................314
Glove box light ...............................................314
Grocery bag hooks ..................................... 318
H
Hands Free Power Back Door ............... 106
Head restraints ...............................................136
Headlight aim ................................................ 382
Headlights Adaptive Front-lighting System (AFS).......................................................................... 190
Automatic High Beam system............... 191
Light switch .................................................... 188
Replacing light bulbs............................... 385 Head-up display..............................................88
Driving information display area .......... 88
Eco Driving Indicator.................................. 92
HUD (Head-up display) switch ............89
Navigation system-linked display ..........91
Settings...............................................................90
Heated steering wheel .............................. 306
Heaters Front automatic air conditioning system.......................................................................... 292
Heated steering wheel ........................... 306
Outside rear view mirrors..................... 294
Rear automatic air conditioning system
......................................................................... 303
Seat heaters ................................................. 306
High mounted stoplight Replacing light bulbs ............................... 385
Hill-start assist control ............................... 275
Hood Open................................................................357
Hooks Cargo hooks..................................................317
Cargo net hooks ..........................................317
Coat hooks .................................................... 331
Front passenger footwell hooks.........333
Grocery bag hooks................................... 318
Retaining hooks (floor mat) ..................... 24
Horn ....................................................................139
HUD (Head-up display) switch ................ 89
I
I/M test ............................................................ 354
Identification Engine.............................................................. 443
Vehicle ............................................................443
If your vehicle has to be stopped in an emergency .................................................. 394
Ignition switch (engine switch)................. 174 Auto power off function............................ 177
Changing the engine switch modes .. 177
If your vehicle has to be stopped in an emergency .................................................394

498Alphabetical Index
Indicators ............................................................74
InitializationItems to initialize ......................................... 474
Maintenance ..................................... 350, 361
Power windows............................................ 144
Tire pressure warning system ............... 371
Inside rear view mirror ............................... 140
Instrument panel light control ................... 80
Intercooler coolant Capacity ......................................................... 446
Interior lights.................................................. 309 Front interior light ......................................309
Rear interior light .......................................309
Intuitive parking assist..................... 242, 244 Function .......................................................... 244
Warning message..................................... 246
J
JackPositioning a floor jack............................ 357
Vehicle-equipped jack ............................. 417
Jack handle ...................................................... 417
Jam protection function Electronic sunshade .................................. 150
Moon roof ....................................................... 147
Panoramic moon roof.............................. 150
Power back door........................................ 109
Power windows............................................ 144
Rear seats ........................................................ 122
K
Keyless entrySmart access system with push-button start ................................................................... 115
Wireless remote control........................... 97
Keys Battery-saving function ............................. 116
Electronic key ................................................. 96
Engine switch................................................. 174
If the electronic key does not operate properly......................................................... 431 If you lose your keys ................................ 430
Key number plate .........................................96
Keyless entry .......................................... 97, 115
Mechanical key .............................................. 96
Replacing the battery ............................... 379
Warning buzzer ............................................ 115
Wireless remote control ........................... 97
Knee airbags .................................................... 30
L
Lane Tracing Assist (LTA) Operation ........................................................216
Warning messages................................... 224
Language (multi-information display) ... 85
LATCH anchors ............................................. 54
Lever Auxiliary catch lever .................................357
Hood lock release lever .........................357
Shift lever ......................................................... 178
Turn signal lever .......................................... 182
Wiper lever .................................................... 194
Lexus climate concierge ............................291
Lexus Enform Safety Connect.................. 60
Lexus Safety System + 2.0 AHB (Automatic High Beam) ............... 191
Dynamic radar cruise control with full-speed range ...................................... 227
LTA (Lane Tracing Assist) ......................216
PCS (Pre-Collision System) ............... 209
RSA (Road Sign Assist).......................... 225
License plate lights Light switch ....................................................188
Replacing light bulbs ............................... 385
Light bulbs Replacing ...................................................... 384
Lights Automatic High Beam system ............... 191
Fog light switch ............................................ 194
Front interior lights ................................... 309
Front personal lights.................................. 310
Headlight switch..........................................188
Interior lights ................................................ 309

499Alphabetical Index
Interior lights list..........................................309
Rear interior lights .....................................309
Rear personal lights................................... 310
Replacing light bulbs............................... 385
Turn signal lever ...........................................182
Vanity lights .................................................. 333
Wattage.......................................................... 449
Lock steering column .................................. 175
LTA (Lane Tracing Assist) Operation........................................................ 216
Warning messages .................................. 224
Luggage cover .............................................. 318
M
Maintenance Do-it-yourself maintenance .................355
General maintenance ...............................351
Maintenance data...................................... 442
Maintenance requirements ................. 350
Malfunction indicator lamp ..................... 404
Master warning light .................................. 409
Menu icons..........................................................81
Meter Clock ................................................................... 77
Indicators ...........................................................74
Instrument panel light control ................80
Meter control switches .............................. 82
Meters ................................................................. 77
Multi-information display ............................81
Settings .............................................................. 85
Units .................................................................... 84
Warning lights .............................................403
Warning message....................................... 412
Micro dust and pollen filter ..................... 299
Mirrors Inside rear view mirror............................. 140
Outside rear view mirror defoggers294
Outside rear view mirrors ........................141
Vanity mirrors.............................................. 333
Moon roof Door lock linked moon roof operation........................................................................... 147 Door lock linked panoramic moon roof
operation ..................................................... 150
Jam protection function ............................147
Operation ....................................................... 146
Multi-information display ..............................81 Audio system-linked display ...................85
AWD Control ................................................83
Drive information .......................................... 82
Driving assist system information .........85
Driving information display ...................... 82
Dynamic radar cruise control with full-speed range ...................................... 227
Eco Driving Indicator..................................83
G-force ..............................................................84
LTA (Lane Tracing Assist) ...................... 221
Menu icons ....................................................... 81
Meter control switches .............................. 82
Navigation system-linked display ........85
Pop-up display ................................................ 81
Settings...............................................................85
Suggestion function .....................................86
Tire pressure ................................................ 367
Units.....................................................................84
Warning message .......................................412
N
Navigation system-linked display..... 85, 91
Noise from under vehicle ...............................6
O
“ODO TRIP” switch ...................................... 80
Odometer ......................................................... 80
Odometer and trip meter display Display items .................................................. 80
“ODO TRIP” switch ................................... 80
Pop-up display .............................................. 80
Oil Engine oil........................................................ 444
Rear differential oil......... ..................... ....... 447
Opener Fuel filler door ............................................. 200