fuses LEXUS RX350 2021 Owners Manual

4TABLE OF CONTENTS
6-1. Maintenance and careCleaning and protecting the vehi-cle exterior ................................... 344
Cleaning and protecting the vehi- cle interior .................................... 347
6-2. Maintenance Maintenance requirements ..... 350
General maintenance ................. 351
Emission inspection and mainte- nance (I/M) programs ............ 354
6-3. Do-it-yourself maintenance Do-it-yourself service precautions........................................................... 355
Hood.................................................. 357
Positioning a floor jack............... 357
Engine compartment.................. 359
Tires ................................................... 365
Tire inflation pressure ................. 373
Wheels.............................................. 374
Air conditioning filter..................376
Windshield wiper inserts........... 378
Electronic key battery ................ 379
Checking and replacing fuses ............................................................ 381
Headlight aim................................. 382
Light bulbs ....................................... 384
7-1. Essential information Emergency flashers..................... 394
If your vehicle has to be stopped in an emergency ............................. 394If the vehicle is trapped in rising
water .............................................. 395
7-2. Steps to take in an emergency If your vehicle needs to be towed.......................................................... 397
If you think something is wrong ........................................................... 401
Fuel pump shut off system ........ 402
If a warning light turns on or a warn- ing buzzer sounds..................... 403
If a warning messa ge is displayed
............................................................ 412
If you have a flat tire ..................... 416
If the engine will not start .......... 428
If you lose your keys.................... 430
If the fuel filler door cannot be opened .......................................... 430
If the electronic key does not oper- ate properly ................................... 431
If the vehicle battery is discharged .......................................................... 433
If your vehicle overheats ........... 437
If the vehicle becomes stuck ... 439
8-1. Specifications Maintenance data (fuel, oil level, etc.) .................................................. 442
Fuel information............................ 450
Tire information ............................ 452
8-2. Customization Customizable features ............... 461
8-3. Initialization Items to initialize ........................... 474
6Maintenance and care
7When trouble arises
8Vehicle specifications

343
6
6
Maintenance and care
Maintenance and care
.6-1. Maintenance and careCleaning and protecting the vehi-cle exterior ................................ 344
Cleaning and protecting the vehi- cle interior ................................. 347
6-2. Maintenance Maintenance requirements........................................................ 350
General maintenance .............. 351
Emission inspection and mainte- nance (I/M) programs ......... 354
6-3. Do-it-yourself maintenance Do-it-yourself service precautions........................................................ 355
Hood............................................... 357
Positioning a floor jack............ 357
Engine compartment............... 359
Tires ................................................ 365
Tire inflation pressure .............. 373
Wheels........................................... 374
Air conditioning filter...............376
Windshield wiper inserts........ 378
Electronic key battery ............. 379
Checking and replacing fuses ......................................................... 381
Headlight aim.............................. 382
Light bulbs .................................... 384

3556-3. Do-it-yourself maintenance
6
Maintenance and care
6-3.Do-it-yourself maintenance
Do-it-yourself service pre-
cautions
If you perform maintenance by
yourself, be sure to follow the cor-
rect procedure as given in these
sections.
Maintenance
ItemsParts and tools
Battery condition
( P.363)
•Warm water
• Baking soda
•Grease
• Conventional
wrench (for terminal
clamp bolts)
Brake fluid level
( P.362)
• FMVSS No.116 DOT
3 or SAE J1703
brake fluid
•Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine coolant
level ( P.361)
•“Toyota Super Long
Life Coolant” or a
similar high quality
ethylene gly-
col-based non-sili-
cate, non-amine,
non-nitrite and
non-borate coolant
with long-life hybrid
organic acid tech-
nology
For the U.S.A.:
“Toyota Super Long
Life Coolant” is
pre-mixed with 50%
coolant and 50%
deionized water.
For Canada:
“Toyota Super Long
Life Coolant” is
pre-mixed with 55%
coolant and 45%
deionized water.
•Funnel (used only for adding engine cool-
ant)
Engine oil level
( P.359)
•“Toyota Genuine
Motor Oil” or equiv-
alent
• Rag or paper towel
•Funnel (used only for adding engine oil)
Fuses ( P.381)
•Fuse with same
amperage rating as
original
Headlight aim
( P.382)• Phillips-head screw-
driver
ItemsParts and tools

3816-3. Do-it-yourself maintenance
6
Maintenance and care
1Turn the engine switch off.
2 Open the fuse box cover.
Engine compartment
Push the tab in and lift the lid off.
Driver’s side instrument panel
Remove the lid.
3Remove the fuse with the pullout
tool. Only some fuses can be removed
using the pullout tool.
4 Check if the fuse is blown.
Normal fuse
Blown fuse
Replace the blown fuse with a new fuse of
an appropriate amperage rating. The
amperage rating can be found on the fuse
box lid.
Many types of fuse are used on this vehicle.
This illustration shows a common type of
fuse used on this vehicle.
■After a fuse is replaced
●If the lights do not turn on even after the
fuse has been replaced, a bulb may need
replacement. ( P.384)
●If the replaced fuse blows again, have the
vehicle inspected by your Lexus dealer.
■If there is an overload in a circuit
The fuses are designed to blow, protecting
the wiring harness from damage.
Checking and replacing
fuses
If any of the electrical components
do not operate, a fuse may have
blown. If this happens, check and
replace the fuses as necessary.
Checking and replacing fuses
A
B

3826-3. Do-it-yourself maintenance
■When replacing light bulbs
Lexus recommends that you use genuine
Lexus products designed for this vehicle.
Because certain bulbs are connected to cir-
cuits designed to prevent overload,
non-genuine parts or parts not designed for
this vehicle may be unusable.
Vehicles without single-beam head-
lights
Adjustment bolt A
Adjustment bolt B
Vehicles with single-beam head-
lightsAdjustment bolt A
Adjustment bolt B
1 Make sure the vehicle has a full
tank of gasoline and the area
around the headlight is not
deformed.
WARNING
■To prevent system breakdowns and
vehicle fire
Observe the following precautions.
Failure to do so may cause damage to
the vehicle, and possibly a fire or injury.
●Never use a fuse of a higher amperage
rating than that indicated, or use any
other object in place of a fuse.
●Always use a genuine Lexus fuse or
equivalent.
Never replace a fuse with a wire, even
as a temporary fix.
●Do not modify the fuses or fuse boxes.
NOTICE
■Before replacing fuses
Have the cause of electrical overload
determined and repaired by your Lexus
dealer as soon as possible.
Headlight aim
Vertical movement adjusting
bolts
Before checking the headlight
aim
A
B
A
B

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

501Alphabetical Index
Head restraints .............................................136
Seat heaters ..................................................306
Rear side marker lights Light switch .................................................... 188
Replacing light bulbs............................... 385
Rear turn signal lights Replacing light bulbs................... 385, 389
Turn signal lever ...........................................182
Wattage.......................................................... 449
Rear view mirror Inside rear view mirror............................. 140
Outside rear view mirrors ........................141
Rear window defogger ............................. 294
Rear window wiper.......................................199
Refueling Capacity ......................................................... 444
Fuel types....................................................... 444
If the fuel filler door cannot be opened.........................................................................430
Opening the fuel tank cap ....................200
Remote Touch .............................................. 286
Replacing Electronic key battery.............................. 379
Fuses ................................................................. 381
Light bulbs.....................................................384
Tires ....................................................................416
Resetting the message indicating mainte- nance is required ...................................... 350
Rev indicator .................................................... 78
Rev peak..............................................................79
Road Sign Assist .......................................... 225
RSA (Road Sign Assist) ............................ 225
S
Seat belt reminder ligh t............................. 406
Seat belts............................................................ 26 Automatic Locking Retractor ................ 28
Child restraint system installation ......... 46
Cleaning and maintaining the seat belt......................................................................... 347
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 .................. 406
Seat belt extender......................................... 27
Seat belt pretensioners .............................. 29
SRS warning light...................................... 404
Seat heaters ................................................... 306
Seat position memory..................................133
Seat ventilators ............................................. 306
Seating capacity.............................................162
Seats Adjustment ............................................. 121, 123
Adjustment precautions .................. 121, 122
Child seats/child restraint system installa-tion .................................................................... 45
Cleaning ......................................................... 347
Driving position memory ........................ 133
Folding down the rear seatbacks ........123
Head restraints............................................. 136
Power easy access system .................... 133
Properly sitting in the seat ........................ 25
Seat heaters ................................................. 306
Seat position memory .............................. 133
Seat ventilators ........................................... 306
Sensor Automatic headlight system .................. 188
Automatic High Beam system ............... 191
Inside rear view mirror ............................. 140
Intuitive parking assist .............................. 244
LTA (Lane Tracing Assist) ......................216
Parking Support Brake function (rear-crossing vehicles) ...................... 267
Parking Support Brake function (static objects) ........................................................ 262
Radar sensor ................................... 203, 238
Rain-sensing windshield wipers ...........197
RCTA............................................................... 252
Service reminder message .....................350
Shift lever Automatic transmission ........................... 178