2019 LEXUS RX450H washer

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RX450h_RX450hL_U
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4-1. Before driving Driving the vehicle ......................212
Cargo and luggage .................. 220
Vehicle load limits ..................... 223
Trailer towing (vehicles with towing package)............ 224
Trailer towing (vehicles without towing
package)..................................... 237
Dinghy towing ............................. 238
4-2. Driving procedures Power (ignition) switch............ 239
EV drive mode ............................ 244
Hybrid transmission.................. 246
Turn signal lever ......................... 252
Parking brake .............................. 253
Brake Hold ................................... 256
4-3. Operating the lights and wipers
Headlight switch ........................ 258
Automatic High Beam............. 262
Fog light switch ........................... 266
Windshield wipers and washer ......................................... 267
Rear window wiper and washer ..........................................272 4-4. Refueling
Opening the fuel tank cap ......274
4-5. Using the driving support systems
Lexus Safety System+ .............. 279
PCS (Pre-Collision System) ......... 286
LKA (Lane-Keeping Assist).......... 297
Dynamic radar cruise control with full-speed
range ............................................ 306
BSM (Blind Spot Monitor).......319 • BSM function......................... 323
• RCTA function...................... 327
Intuitive parking assist.............. 332
Intelligent Clearance Sonar (ICS)............................................. 342
Lexus parking assist monitor........................................ 363
Driving mode select switch ........................................... 379
Driving assist systems .............. 382
4-6. Driving tips Hybrid vehicle driving tips .....388
Winter driving tips..................... 390
Utility vehicle precautions ..... 394
4Driving

19Pictorial index
RX450h_RX450hL_U
Multi-information display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 101
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 101
Energy monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 124
When the warning messages are displayed . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 667
Parking brake switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 253
Applying/releasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 253, 254
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 391
Warning buzzer/message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 255, 667
Turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 2 52
Headlight switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 258
Headlights/side marker lights/parking lights/tail lights/
license plate lights/daytime running lig hts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 258
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 266
Windshield wiper and washer switch . . . . . . . . . . . . . . . . . . . . . . . . . P. 267, 272
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 267, 272
Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 60 4
Emergency flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 652
Hood lock release lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 595
Tilt and telescopic steering control switch . . . . . . . . . . . . . . . . . . . . . . . . . . P. 189
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 189
Driving position memory
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 181
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 507
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 507
Rear window defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 516
Audio system*2
Audio system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 400
Hands-free system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 461
*1: If equipped
*2: For vehicles with a navigation system, refer to “NAVIGATION SYSTEM OWNER’S
MANUAL”.
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1353-1. Key information
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Operation of each component
RX450h_RX450hL_U
NOTICE
■To prevent key damage
●Do not drop the keys, subject them to strong shocks or bend them.
●Do not expose the keys to high temp eratures for long periods of time.
●Do not get the keys wet or wash them in an ultrasonic washer, etc.
●Do not attach metallic or magnetic materials to the keys or place the keys close to
such materials.
●Do not disassemble the keys.
●Do not attach a sticker or anything else to the surface of the electronic key.
●Do not place the keys near objects that pr oduce magnetic fields, such as TVs, audio
systems and induction cookers, or medical electrical equipment, such as low-fre-
quency therapy equipment.
■Carrying the electronic key on your person
Carry the electronic key 3.9 in. (10 cm) or mo re away from electric appliances that are
turned on. Radio waves emitted from electric appliances within 3.9 in. (10 cm) of the
electronic key may interfere with the key, causing the key to not function properly.
■In case of a smart access system with push-button start malfunction or other key-
related problems
Take your vehicle with all the electronic keys provided with your vehicle to your Lexus
dealer.
■When an electronic key is lost
If the electronic key re mains lost, the risk of vehicle th eft increases significantly. Visit
your Lexus dealer immediately with all rema ining electronic keys that were provided
with your vehicle.

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4Driving
RX450h_RX450hL_U
4-3. Operating the lights and wipers
Headlight switch ........................ 258
Automatic High Beam ............. 262
Fog light switch ...........................266
Windshield wipers and washer.......................................... 267
Rear window wiper and washer.......................................... 272
4-4. Refueling Opening the fuel tank cap...... 274 4-5. Using the driving support
systems
Lexus Safety System+ .............. 279
PCS (Pre-Collision System) ......... 286
LKA (Lane-Keeping A ssist) .......... 297
Dynamic radar cruise control with full-speed
range ............................................306
BSM (Blind Spot Monitor) ...... 319 • BSM function ......................... 323
• RCTA function...................... 327
Intuitive parking assist .............. 332
Intelligent Clearance Sonar (ICS) ............................................. 342
Lexus parking assist monitor ........................................ 363
Driving mode select switch ........................................... 379
Driving assist systems ..............382
4-6. Driving tips Hybrid vehicle driving tips ................................................ 388
Winter driving tips .....................390
Utility vehicle precautions................................ 394

2294-1. Before driving
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Driving
RX450h_RX450hL_U
Use the correct trailer ball for your application.Trailer ball load rating
Matches or exceeds the gross trailer
weight rating of the trailer.
Ball diameter
Matches the size of the trailer coupler.
Most couplers are stamped with the
required trailer ball size.
Shank length
Protrudes beyond the bottom of the lock washer and nut by at least 2 threads.
Shank diameter
Matches the ball mount hole diameter size.
Weight carrying ball position:
44.96 in. (1142 mm)
Hitch receiver pin hole position:
35.94 in. (913 mm)
Selecting trailer ball
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Trailer classTypical trailer ball size
IV2 5/16 in.
II and III2 in.
I1 7/8 in.
Positions for towing hitch receiver and hitch ball
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2674-3. Operating the lights and wipers
4
Driving
RX450h_RX450hL_U
Operating the lever operates the wipers or washer as follows.
When “AUTO” is selected, the wipers will operate automatically when the sensor
detects falling rain. The system automatically adjusts wiper timing in accordance
with rain volume and vehicle speed.
The sensor sensitivity can be adju sted when “AUTO” is selected.
(U.S.A.) or (Canada)
Off
Rain-sensing operation
(U.S.A.) or (Canada)
Low speed operation
(U.S.A.) or (Canada)
High speed operation
(U.S.A.) or (Canada)
Temporary operation
Increases the sensitivity
Decreases the sensitivity
Windshield wipers and washer
Operating the wiper lever
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2684-3. Operating the lights and wipers
RX450h_RX450hL_U
Washer/wiper dual opera-
tion
Pulling the lever op erates the wipers
and washer.
The wipers will automatically operate a
couple of times afte r the washer squirts.
Vehicles with headlight cleaners:
When the power switch is in ON mode
and the headlights are on, if the lever is
pulled, the headlight cleaners will oper-
ate once. After this, the headlight clean-
ers will operate every 5th time the lever
is pulled.
■The windshield wipers and washer can be operated when
The power switch is in ON mode.
■Dripping prevention wiper sweep
After washing and wiping operation several times, the wipers operate one more time
after a short delay to prevent dripping. However, this function will not operate while driv-
ing.
■Effects of vehicle speed on wiper operation
Vehicle speed affects the Intermittent wiper interval.
■Raindrop sensor
●If the wiper switch is turned to the “AUTO” position while the power switch is in ON
mode, the wipers will operate once to show that AUTO mode is activated.
●When the sensor sensitivity ring is turned toward high while in “AUTO” position, the
wipers will operate once to indicate that the sensor sensitivity is enhanced.
●If the temperature of the raindrop sensor is 194 F (90 C) or higher, or 5 F (-15 C) or
lower, automatic operation may not occur. In this case, operate the wipers in any mode
other than AUTO mode.
■If no windshield washer fluid sprays
Check that the washer nozzles ar e not blocked if there is washer fluid in the washer fluid
tank.
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●The raindrop sensor judges the amount of
raindrops.
An optical sensor is ad opted. It may not oper-
ate properly when sunlight from the rising or
setting of the sun inte rmittently strikes the
windshield, or if bugs, etc. are present on the
windshield.

2694-3. Operating the lights and wipers
4
Driving
RX450h_RX450hL_U
■Front door opening linked windshield wiper stop function
When “AUTO” is selected and the windshield wipers are operating, if a front door is
opened, the operation of the windshield wipers will be stopped to prevent anyone near
the vehicle from being sprayed by water from the wipers, provided the vehicle is stopped
with the parking brake applied or the shift lever in P. When the front door is closed, wiper
operation will resume.
■Customization
Some functions can be customized. ( P. 736)
WARNING
■Caution regarding the use of windshield wipers in AUTO mode
The windshield wipers may operate unexpectedly if the sensor is touched or the wind-
shield is subject to vibration in AUTO mode. Take care that your fingers, etc. do not
become caught in the windshield wipers.
■Caution regarding the use of washer fluid
When it is cold, do not use the washer fl uid until the windshield becomes warm. The
fluid may freeze on the windshield and cause lo w visibility. This may lead to an accident,
resulting in death or serious injury.
NOTICE
■When the windshield is dry
Do not use the wipers, as they may damage the windshield.
■When the washer fluid tank is empty
Do not operate the switch continually as the washer fluid pump may overheat.
■When a nozzle becomes blocked
In this case, contact your Lexus dealer.
Do not try to clear it with a pin or other object. The nozzle will be damaged.