2019 LEXUS RX450H wiper

5837-1. Maintenance and care
7
Maintenance and care
RX450h_RX450hL_U
NOTICE
■To prevent paint deterioration and corrosion on the body and components (aluminum
wheels, etc.)
●Wash the vehicle immediatel y in the following cases:
• After driving near the sea coast
• After driving on salted roads
• If you see coal tar or tree sap on the paint surface
• If you see dead insects, insect droppings or bird droppings on the paint
• After driving in an area contaminated wi th soot, oily smoke, mine dust, iron pow-
der or chemical substances
• If the vehicle becomes heavily soiled with dust or mud
• If liquids such as benzene and gasoli ne are spilled on the paint surface
●If the paint is chipped or scratched, have it repaired immediately.
●To prevent the wheels from corroding, remove any dirt and store in a place with low
humidity when storing the wheels.
■Cleaning the exterior lights
●Wash carefully. Do not use organic subs tances or scrub with a hard brush.
This may damage the surfaces of the lights.
●Do not apply wax to the surfaces of the lights.
Wax may cause damage to the lenses.
■When using an automatic car wash
Set the wiper switch to the off position.
If the wiper switch is in “AUTO”, the wipers may operate and the wiper blades may be
damaged.
■When using a high pressure car wash
●When washing the vehicle, do not let water of the high pressure washer hit directly or
the vicinity of the camera. Due to the shock from the high pressure water, it is possible
the device may not operate as normal.
●Do not bring the nozzle tip close to boots (rubber or resin manufactured cover), con-
nectors or the following parts. The parts may be damaged if they come into contact
with high-pressure water.
• Traction related parts
• Steering parts
• Suspension parts
•Brake parts
●Do not point the nozzle of a high pressure
washer at the areas sh own in the illustration,
as high pressure water may damage the oil
cooler.

5917-2. Maintenance
7
Maintenance and care
RX450h_RX450hL_U
Vehicle exterior
ItemsCheck points
Doors• Do the doors operate smoothly?
Engine hood• Does the engine hood lock system work properly?
Fluid leaks• There should not be any signs of fluid leakage after
the vehicle has been parked.
Tires
• Is the tire inflation pressure correct?
• The tires should not be damaged or excessively worn.
• Have the tires been rotated according to the mainte- nance schedule?
• The wheel nuts should not be loose.
Windshield wipers/
rear window wiper
•The wiper blades should no t show any signs of crack-
ing, splitting, wear, contamination or deformation.
• The wiper blades should clear the windshield/rear
window without streaking or skipping.
WARNING
■If the hybrid system is operating
Turn the hybrid system off and ensure that there is adequate ventilation before per-
forming maintenance checks.

6287-3. Do-it-yourself maintenance
RX450h_RX450hL_U
Change the rest position of the windshie ld wipers to the service position using
the wiper lever and then lift a windshield wiper. ( P. 270)
While pressing and holding the
wiper blade lock release button,
remove the wiper blade.
When performing this operation, make
sure to hold the hook portion of the
wiper arm securely.
While disengaging the cap lock,
using a tool such as a flathead
screwdriver if necessary, remove the
wiper insert.
Hold the cap on the end of the wiper
insert when removing the wiper insert.
(The cap is integrated into the wiper
insert.)
If using a screwdriver, make sure to wrap
its tip with tape to protect the wiper
blade.
Install a new wiper insert.
Make sure to push the wiper insert firmly until the cap lock is engaged.
After installation, check that th e cap lock is locked securely.
Install the wiper blade to the wiper arm.
Make sure to push the wiper blade until it is locked.
When performing this operation, make sure to hold the hook portion of the wiper arm
securely.
After installation, check that the wiper blade is locked securely.
Windshield wiper inserts
Replacing a windshield wiper insert
1
Hook portion
12
Cap lock
3
14
5

6297-3. Do-it-yourself maintenance
7
Maintenance and care
RX450h_RX450hL_U
After replacing the wiper inserts, place the windshield wipers on the wind-
shield and lower them to the retracted position. (P. 271)
Do not drive the vehicle with the windshield wipers lifted.
■Replacing the rear wiper insert
Have the rear wiper insert replaced by your Lexus dealer.
■Handling of the windshield wiper blades and inserts
Improper handling of the windshield wiper blades and inserts may cause them to be
damaged. If it is difficult to follow the wiper blade and insert replacement procedure pre-
cisely, contact your Lexus dealer.
6

7449-2. Customization
RX450h_RX450hL_U
■Turn signal lever ( P. 252)
■Automatic light control system ( P. 258)
■Lights (P. 258)
*1:Except for Canada
*2: If equipped
■Rain-sensing windshield wipers (P. 267)
FunctionDefault settingCustomized setting
The number of times the turn sig-
nal lights flash automatically
when the turn signal lever is
moved to the first position during
a lane change
3
5
—O7
Off
12
FunctionDefault settingCustomized setting
Light sensor sensitivityStandard-2 to 2OO
Time elapsed before headlights
automatically turn off after doors
are closed 30 seconds
Off
OO
60 seconds
90 seconds
12
FunctionDefault settingCustomized setting
Daytime running lightsOnOff*1OO
Welcome lightingOnOff—O
AFS (Adaptive Front-lighting
System)
*2OnOff—O
Windshield wiper linked head-
light illuminationOnOff—O
12
FunctionDefault settingCustomized setting
Wiper operation when the wiper
switch is in the “AUTO” positionRain-sensing oper-ationIntermittent opera-tion linked to vehi-
cle speed (with
interval adjuster)
—O
12

778Alphabetical index
RX450h_RX450hL_U
Hands-free system (for cellular phone) .............................461
Head restraints ....................................... 186
Head-up display....................................... 118
Headlight cleaner................................. 267
Headlights ............................................... 258 Automatic headlight leveling ...... 260
Automatic High Beam .................... 262
Light switch .......................................... 258
Replacing light bulbs ........................637
Wattage ....................................................719
Windshield wiper linked headlight illumination..................... 261
Heated steering wheel ....................... 526
Heaters Automatic air conditioning system ..................................... 507, 522
Heated steering wheel ....................526
Outside rear view mirrors .............. 516
Seat heaters ..............................526, 527
High mounted stoplight Replacing ...............................................637
Hill-start assist control ........................ 382
Hood .......................................................... 595 Open ....................................................... 595
Hooks Cargo hooks ....................................... 540
Cargo net hooks ............................... 540
Front passenger footwell hooks ....................................................557
Grocery bag hooks........................... 541
Retaining hooks (floor mat) ............. 28 Horn.............................................................189
HUD (Head-up display)....................... 118
Humidity sensor...................................... 521
Hybrid battery air vent ........................... 79
Hybrid battery (traction battery)
Location .................................................... 78
Specification ........................................... 713
Hybrid system............................................ 74 Emergency shut off system ..............79
Energy monitor/consumption screen....................... 124
EV drive mode ................................... 244
High voltage components ............... 78
Hybrid System Indicator ................... 99
Hybrid system precautions ............. 78
Hybrid vehicle driving tips ........... 388
If the hybrid system will not start....................................................... 690
Overheating......................................... 702
Power (ignition) switch................... 239
Regenerative braking ..........................76
Starting the hybrid system............. 239
Vehicle proximity notification system ..................................................... 75
Hybrid System Indicator .......................99
Hybrid transmission .............................246 If the shift lever cannot be shifted from P ...................................250
Paddle shift switches............ 247, 248
S mode.................................................... 248
H

780Alphabetical index
RX450h_RX450hL_U
Keyless entrySmart access system with push-button start ............................. 158
Wireless remote control ....... 136, 142
Keys..............................................................132 Battery-saving function .................... 160
Electronic key ........................................132
Engine switch .......................................239
If the electronic key does not operate properly.............................692
If you lose your keys ................ 133, 135
Key number plate ................................132
Keyless entry ..........................................132
Mechanical key .................................... 133
Power switch........................................239
Replacing the battery ...................... 630
Warning buzzer ...................................137
Wireless remote control ..................132
Knee airbags ............................................. 37 Lane-Keeping Assist (LKA) ............. 297
Language (multi-information
display) ..................................................... 113
LATCH anchors ....................................... 67
Lever Auxiliary catch lever .........................595
Hood lock release lever.................595
Shift lever ............................................... 246
Turn signal lever ................................. 252
Wiper lever................................ 267, 272
Lexus Climate Concierge................ 506
Lexus Display Audio controller.............................................. 402
Lexus Enform
*
Lexus Enform Remote*
LEXUS Enform Safety Connect.................................................. 571
LEXUS Enform Service Connect................................................. 577
Lexus parking assist monitor ........... 363 Display..................................................... 364
Precautions ........................................... 370
Lexus Safety System+ ......................... 279 Automatic High Beam.................... 262
Dynamic radar cruise control with full-speed range ................. 306
LKA (Lane-Keeping Assist) ........ 297
PCS (Pre-Collision System) ...... 286
KL

784Alphabetical index
RX450h_RX450hL_U
Radar cruise control (dynamic radar cruise control
with full-speed range) ..................... 306
Radiator .................................................... 602
Radio.......................................................... 426
Rear automatic air conditioning system .................................................... 522
Rear Cross Traffic Alert ......................319
Rear Cross Traffic Auto Brake ...................................................... 356
Rear door sunshades .......................... 557
Rear passengers’ seat belt reminder light ..................................... 662
Rear seat Folding down the rear seatbacks ............................................. 168
Rear side marker lights Light switch .......................................... 258
Replacing light bulbs ........................637
Rear turn signal lights Replacing light bulbs ........................637
Turn signal lever ................................. 252
Wattage ....................................................719 Rear view mirror
Inside rear view mirror....................... 191
Outside rear view mirrors ..............193
Rear window defogger ........................ 516
Rear window wiper .............................. 272
Refueling................................................... 274 Capacity................................................... 712
Fuel types................................................. 712
Opening the fuel tank cap .............274
When the fuel filler door cannot be opened ..........................277
Regenerative braking............................. 76
Remote Touch
*.................................... 500
Replacing Electronic key battery .....................630
Fuses ........................................................ 632
Light bulbs............................................. 637
Tires .......................................................... 673
Windshield wiper inserts ............... 628
Reporting safety defects for U.S. owners ...................................752
Resetting the message indicating maintenance is required ................ 588
Rev indicator ............................................. 98
Rev peak ..................................................... 98
Road accident cautions .......................... 81
R