wipers LEXUS RX450h 2018 Owner's Manual

392 4-6. Driving tips
RX450h_RX450hL _U_OM48F85UTo enable the windshield wi pers to be lifted when he avy snow or icy conditions
are expected, change the rest position of the windshield wipers from the
retracted position below the hood to th e service position using the wiper lever.
( →
P. 270) ■
Tire chain installation
Observe the following precautions when installing and removing chains: ●
Install and remove tire chains in a safe location. ●
Install tire chains on the front tires only. Do not install tire chains on the rear tires. ●
Install tire chains on front tires as tightly as possible. Retighten chains after driving
1/4 - 1/2 mile (0.5 - 1.0 km). ●
Install tire chains following the instru ctions provided with the tire chains. Windshield wipers
WARNING ■
Driving with snow tires
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in a loss of vehi cle control and cause death or serious injury.●
Use tires of the specified size. ●
Maintain the recommended level of air pressure.●
Do not drive in excess of 75 mph (120 km/h ), regardless of the type of snow tires
being used. ●
Use snow tires on all, not just some wheels. ■
Driving with tire chains
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in the vehicle being unable to be dr iven safely, and may
cause death or serious injury. ●
Do not drive in excess of the speed limit specified for the tire chains being used, or
30 mph (50 km/h), whichever is lower. ●
Avoid driving on bumpy road surfaces or over potholes.●
Avoid sudden acceleration, abrupt steering, sudden braking and shifting operations
that cause sudden engine braking. ●
Slow down sufficiently before entering a cu rve to ensure that vehicle control is main-
tained. ●
Do not use the LKA (Lane-Keeping Assist) system.

582 7-1. Maintenance and care
RX450h_RX450hL _U_OM48F85UWARNING ■
When washing the vehicle
Do not apply water to the inside of the engine compartment. Doing so may cause the
electrical components, etc. to catch fire. ■
When cleaning the windshield
●
When the upper part of the windshield where the raindrop se nsor is located is
touched by hand ●
When a wet rag or similar is held close to the raindrop sensor ●
If something bumps against the windshield ●
If you directly touch the raindrop sensor bo dy or if something bumps into the raindrop
sensor ■
Precautions regarding the exhaust pipe
Exhaust gasses cause the exhaust pipe to become quite hot.
When washing the vehicle, be careful not to touch the pipe until it has cooled suffi-
ciently, as touching a hot exhaust pipe can cause burns. ■
Precautions regarding the rear bumper with Blind Spot Monitor
If the paint of the rear bumper is chipped or scratched, the syst em may malfunction. If
this occurs, consult your Lexus dealer.Set the wiper switch to off.
If the switch is in “AUT O”, the wipers may oper-
ate unexpectedly in the following situations,
and may result in hands being caught or other
serious injuries and cause damage to the wiper
blades.
Off

5837-1. Maintenance and care
7
Maintenance and care
RX450h_RX450hL _U_OM48F85UNOTICE ■
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_OM48F85UVehicle exterior Items Check points
Doors • Do the doors operate smoothly?
Engine hood • Does the engine hood lock system work properly?
Fluid leaks • There should not be any si gns 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.

628 7-3. Do-it-yourself maintenance
RX450h_RX450hL _U_OM48F85UChange 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 portion12
Cap lock3
14
5

6297-3. Do-it-yourself maintenance
7
Maintenance and care
RX450h_RX450hL _U_OM48F85UAfter 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

744 9-2. Customization
RX450h_RX450hL _U_OM48F85U■
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)Function Default setting Customized 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 1 2
Function Default setting Customized setting
Light sensor sensitivity Standard -2 to 2 O O
Time elapsed before headlights
automatically turn off after doors
are closed 30 seconds Off
OO
60 seconds
90 seconds 1 2
Function Default setting Customized setting
Daytime running lights On Off
* 1
O O
Welcome lighting On Off — O
AFS (Adaptive Front-lighting
System)
* 2
On Off — O
Windshield wiper linked head-
light illumination On Off — O 1 2
Function Default setting Customized setting
Wiper operation when the wiper
switch is in the “AUTO” position Rain-sensing oper-
ation Intermittent opera-
tion linked to vehi-
cle speed (with
interval adjuster) — O 1 2

786 Alphabetical index
RX450h_RX450hL _U_OM48F85USensor
Automatic headlight system ........ 260
Camera sensor .................................... 281
Humidity sensor .................................. 521
Inside rear view mirror ..................... 192
Intuitive parking assist ...................... 332
Radar sensor ......................................... 281
Rain-sensing windshield
wipers .................................................. 268
Touchless sensor ................................ 144
Service reminder indicators ............... 90
Shift lever
Hybrid transmission ....................... 246
If the shift lever cannot be
shifted from P ................................ 250
Shift lock system .............................. 250
Side airbags ............................................... 37
Side doors..................................................136
Side marker lights
Light switch .......................................... 258
Replacing light bulbs ........................637
Side mirrors ..............................................193
Adjusting and folding........................ 193
Blind Spot Monitor (BSM)............. 319
Heaters..................................................... 516
Side turn signal lights
Replacing light bulbs ........................637
Turn signal lever ................................. 252 Smart access system
with push-button start .......................158
Antenna location................................. 158
Entry functions ............................136, 142
Starting the hybrid system............. 239
Snow tires ................................................ 392
Spare tire
Inflation pressure.................................. 717
Storage location ................................. 674
Spark plug ................................................. 715
Specifications........................................... 710
Speedometer .............................................96
Sport mode ..............................................379
Steering wheel ........................................189
Adjustment............................................. 189
Audio switches ...................................406
Heated steering wheel ................... 526
Power easy access system .............. 181
Telephone switches............................ 471
Stop lights
Replacing light bulbs ....................... 637
Storage feature ..................................... 532
Storage precautions ........................... 532
Stuck
If the vehicle becomes stuck........ 706
Sun visors..................................................547
Sunshade
Panoramic moon roof..................... 204
Rear door .............................................. 557
Roof ............................................................201

790 Alphabetical index
RX450h_RX450hL _U_OM48F85UWarning buzzers
Approach warning ............................. 314
Downshifting ........................................249
Intuitive parking assist ......................336
Lane departure alert function ..... 298
Light reminder .................................... 260
Open door ............................................. 140
Pre-collision warning .......................287
Seat belt reminder .............................662
Vehicle sway warning .....................299
Warning lights
ABS............................................................ 661
Brake hold operated
indicator ............................................... 661
Brake system....................................... 660
Charging system............................... 660
Electric power st eering.................... 661
ICS OFF indicator.............................662
LKA indicator........................................ 661
Low fuel level .......................................662
Malfunction indicator lamp .......... 660
Master warning light........................ 663
Parking brake indicator ................... 661
PCS warning light .............................662
Seat belt reminder light...................662
Slip indicator .......................................... 661
SRS ........................................................... 660
Tire pressure ........................................662 Warning messages............................... 667
Washer
Checking ...............................................604
Low washer fluid
warning message...............604, 667
Preparing and checking
before winter ....................................390
Switch ........................................... 267, 272
Washing and waxing .......................... 580
Weights
Cargo capacity.........................220, 710
Load limits ................................... 223, 710
Weights ....................................................710
Wheels ......................................................623
Replacing wheels .............................. 623
Size ............................................................. 717
Window glasses...................................... 196
Window lock switch.............................. 196
Windows
Power windows....................................196
Rear window defogger ....................516
Washer ........................................ 267, 272
Windshield wiper de-icer ................... 516
Windshield wiper inserts .................. 628
Windshield wipers ................................ 267
Rain-sensing windshield
wipers................................................... 267
Replacing a windshield wiper
insert ..................................................... 628W