2020 LEXUS RX350 bulb

4026-3. 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.

4588-1. 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

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

504Alphabetical Index
Warning light .................................................413
Brake assist .....................................................277
Break-in tips..................................................... 157
Brightness control Instrument panel light control ................ 78
BSM (Blind Spot Monitor)....................... 239
Buzzer Hands off steering wheel warning (LTA)......................................................................... 226
C
Care Aluminum wheels ..................................... 350
Exterior .......................................................... 350
Interior ............................................................. 353
Seat belts........................................................ 353
Cargo capacity...................................... 161, 164
Cargo hooks ................................................. 322
Cargo net hooks .......................................... 322
Center Display ............................................. 292
Chains .............................................................. 284
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 ......................370, 446
Child restraint system................................. 46
Heated steering wheel and seat heater precautions................................................. 310
How your child should wear the seat belt .............................................................................27
Moon roof precautions ............................149
Panoramic moon roof precautions ....152
Power back door precautions............... 101 Power window lock switch .....................147
Power window precautions .................. 146
Rear door child-protectors ................... 100
Removed electronic key battery precau-
tions .............................................................. 390
Seat belt extender precautions.............. 27
Seat belt precautions .................................. 45
Child-protectors........................................... 100
Cleaning Aluminum wheels ..................................... 350
Exterior........................................................... 350
Interior .............................................................353
Radar sensor ............................................... 205
Seat belts ........................................................353
Clock ........................................................ 75, 336
Coat hooks..................................................... 336
Coin box............................................................321
Compass ......................................................... 346
Condenser ..................................................... 368
Console box ................................................... 318
Consumption screen .................................... 90
Cooling system............................................. 367 Engine overheating................................... 447
Cornering lights .............................................192 Replacing light bulbs ............................... 395
Cruise control Dynamic radar cruise control with full-speed range ......................................230
Cup holders .....................................................319
Current fuel consumption .......................... 80
Curtain shield airbags .................................. 30
Customizable features .............................. 470
D
Daytime running light system .................. 190
Defogger Outside rear view mirrors.................... 298
Rear window ............................................... 298
Windshield ................................................... 298
Differential Rear differential oil......... ..................... ...... 456
Dimension ...................................................... 452

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

507Alphabetical Index
FuelCapacity ......................................................... 454
Fuel gauge ....................................................... 75
Fuel pump shut off system ...................... 412
Information ....................................................459
Refueling ........................................................ 202
Type.................................................................. 454
Warning light .................................................416
Fuel consumption Average fuel economy ..............................80
Current fuel consumption........................80
Fuel filler door If the fuel filler door cannot be opened.........................................................................440
Refueling ........................................................ 202
Fuel gauge ..........................................................75
Fuel pump shut off system.......................... 412
Fuses ...................................................................391
G
Garage door opener ................................. 339
Gauges ................................................................75
G-force............................................................... 82
Glove box ........................................................ 318
Glove box light .............................................. 318
Grocery bag hooks .................................... 322
H
Hands Free Power Back Door ............... 104
Head restraints ............................................... 137
Headlight aim ................................................ 392
Headlights Adaptive Front-lighting System (AFS)........................................................................... 192
Automatic High Beam system..............193
Light switch .................................................... 190
Replacing light bulbs................................395
Head-up display.............................................. 86 Driving information display area........... 86
Eco Driving Indicator ................................. 90
HUD (Head-up display) switch............ 87 Navigation system-linked display ........89
Settings.............................................................. 88
Heated steering wheel ............................... 310
Heaters Front automatic air conditioning system..........................................................................296
Heated steering wheel ............................. 310
Outside rear view mirrors.................... 298
Rear automatic air conditioning system
..........................................................................307
Seat heaters ................................................... 310
High mounted stoplight Replacing light bulbs ............................... 395
Hill-start assist control ............................... 278
Hood Open................................................................363
Hooks Cargo hooks................................................ 322
Cargo net hooks ........................................ 322
Coat hooks ...................................................336
Front passenger footwell hooks........ 338
Grocery bag hooks.................................. 322
Retaining hooks (floor mat) ..................... 24
Horn ................................................................... 140
HUD (Head-up display) switch ................ 87
I
I/M test ............................................................ 360
Identification Engine..............................................................453
Vehicle ............................................................452
If your vehicle has to be stopped in an emergency .................................................. 404
Ignition switch (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
Indicators ............................................................72
Initialization Items to initialize ........................................ 483
Maintenance.................................... 356, 367

508Alphabetical Index
Power windows............................................145
Tire pressure warning system .............. 381
Inside rear view mirror ................................. 141
Instrument panel light control ................... 78
Intercooler coolant Capacity .........................................................455
Interior lights....................................................313 Front interior light ........................................313
Rear interior light .........................................313
Intuitive parking assist..................... 245, 247 Function .......................................................... 247
Warning message..................................... 249
J
JackPositioning a floor jack............................ 363
Vehicle-equipped jack ........................... 427
Jack handle .....................................................427
Jam protection function Electronic sunshade .................................... 151
Moon roof ...................................................... 148
Panoramic moon roof................................ 151
Power back door.........................................107
Power windows............................................145
Rear seats ........................................................ 123
K
Keyless entrySmart access system with push-button start ................................................................... 113
Wireless remote control........................... 95
Keys Battery-saving function ..............................114
Electronic key ................................................. 94
Engine switch................................................. 176
If the electronic key does not operate properly......................................................... 441
If you lose your keys.................................440
Key number plate ......................................... 94
Keyless entry .......................................... 95, 113
Mechanical key.............................................. 94 Replacing the battery .............................. 389
Warning buzzer ............................................ 113
Wireless remote control ...........................95
Knee airbags .................................................... 30
L
Lane Tracing Assist (LTA) Operation ....................................................... 218
Warning messages................................... 226
Language (multi-information display) ... 83
LATCH anchors ............................................. 54
Lever Auxiliary catch lever .................................363
Hood lock release lever .........................363
Shift lever .........................................................180
Turn signal lever .......................................... 184
Wiper lever .................................................... 196
Lexus climate concierge .......................... 295
Lexus Enform Safety Connect.................. 60
Lexus Safety System + 2.0 Automatic High Beam ............................. 193
Dynamic radar cruise control with full-speed range ......................................230
LTA (Lane Tracing Assist) ..................... 218
PCS (Pre-Collision System) ................... 211
RSA (Road Sign Assist).......................... 227
License plate lights Light switch .................................................... 190
Replacing light bulbs ............................... 395
Light bulbs Replacing .......................................................394
Lights Automatic High Beam system ............. 193
Fog light switch ............................................ 195
Front interior lights ..................................... 313
Front personal lights...................................314
Headlight switch.......................................... 190
Interior lights .................................................. 313
Interior lights list ........................................... 313
Rear interior lights ...................................... 313
Rear personal lights ....................................314
Replacing light bulbs ............................... 395

510Alphabetical Index
Outside rear view mirrorsAdjustment...................................................... 142
BSM (Blind Sport Monitor) ................. 239
Folding .............................................................. 143
Linked mirror functi on when reversing
........................................................................... 142
Mirror position memory...........................134
Outside rear view mirror defoggers298
RCTA function ............................................ 253
Outside temperature.....................................75
Overheating ...................................................447
P
Paddle shift switches ......................... 182, 183
Panic mode ....................................................... 95
Panoramic moon roof Jam protection function............................. 151
Operation....................................................... 150
Parking assist sensors (intuitive parking assist) ..............................................................247
Parking brake Operation....................................................... 185
Parking brake engaged warning buzzer...........................................................................187
Warning light .................................................419
Warning message.......................................187
Parking lights Light switch .................................................... 190
Replacing light bulbs................................395
Parking Support Brake function (for rear-crossing vehicles) .......................... 270Function .......................................................... 270
Parking Support Brake function (static objects) ......................................................... 264Function .......................................................... 264
PCS (Pre-Collision System) Function ..............................................................211
PCS OFF switch .......................................... 213
Warning light ................................................ 418
Personal lights.................................................313
PKSA (Parking Support Alert) .............. 245 PKSB (Parking Support Brake)............. 258
Warning message .....................................263
Power back door ............................................ 101 Hands Free Power Back Door ........... 104
Smart access system with push-button start ................................................................. 102
Power easy access system ........................134
Power outlets ................................................ 336
Power steering (Elect ric power steering
system) .......................................................... 278 Warning light ................................................ 415
Power windows Door lock linked window operation . 146
Jam protection function ........................... 145
Operation ....................................................... 145
Window lock switch...................................147
Pre-Collision System (PCS) Function ............................................................. 211
PCS OFF switch ..........................................213
Warning light ................................................ 418
R
Radar cruise control (dynamic radar cruise control with full-speed range)............. 230
Radiator ........................................................... 368
RCTA Function ..........................................................253
Warning message .....................................254
RCTA (Rear Cross Traffic Alert) ......... 245
RCTA function ............................................. 255
Rear automatic air conditioning system .......................................................................... 307
Rear Cross Traffic Alert (RCTA) ......... 253
Rear door sunshades ................................. 338
Rear fog lights Switch................................................................ 195
Rear seats .........................................................123 Adjustment ......................................................124
Folding down the rear seatbacks ........124
Head restraints..............................................137
Seat heaters ................................................... 310