high beam LEXUS RX450H 2020 User Guide

5917-3. Do-it-yourself maintenance
7
Maintenance and care
RX350/RX350L_U
*: Vehicles with single-beam headlights
Tire inflation pres-
sure (P. 613)• Tire pressure gauge• Compressed air source
Washer fluid
( P. 603)• Water or washer fluid containing antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)
WARNING
The engine compartment contains many mechan isms and fluids that may move suddenly,
become hot, or become electrically energize d. To avoid death or serious injury, observe
the following precautions.
■When working on the engine compartment
●Keep hands, clothing and tools away from the moving fan and engine drive belt.
●Be careful not to touch the engine, radiator, exhaust manifold, etc. right after driving
as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easily, such as paper and rags, in the engine
compartment.
●Do not smoke, cause sparks or expose an open flame to fuel or the battery. Fuel and
battery fumes are flammable.
●Be extremely cautions when working on the battery. It contains poisonous and corro-
sive sulfuric acid.
■When working near the electric cooling fans or radiator grille
Be sure the engine switch is off.
With the engine switch in IGNITION ON mode, the electric cooling fans may auto-
matically start to run if the air conditioning is on and/or the coolant temperature is high.
(  P. 599)
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting in
your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner f ilter removed may cause excessive engine wear due to dirt
in the air.
ItemsParts and tools

6417-3. Do-it-yourself maintenance
7
Maintenance and care
RX350/RX350L_U
Install the cover.
Align the tabs of the cover with the
grooves and install the cover.
■Replacing the following bulbs
If any of the lights listed below has burnt out, have it replaced by your Lexus
dealer.
●Headlight low beams
●Headlight high beams
●Front turn signal lights (vehic les with triple-beam headlights)
●Parking lights and daytime running lights
●Fog lights
●Cornering lights (if equipped)
●Front side marker lights (vehicles with triple-beam headlights)
●Side turn signal lights
●Stop/tail lights
●Rear turn signal light (vehicles with triple-beam headlights)
●Rear side marker lights
●High mounted stoplight
●License plate lights
●Outer foot lights
5

6427-3. Do-it-yourself maintenance
RX350/RX350L_U
■LED lights
The headlight low beams, headlight high beams, front turn signal lights (vehicles with tri-
ple-beam headlights), parking lights and da ytime running lights, fog lights, cornering
lights (if equipped), front side marker lights (vehicles with triple-beam headlights), side
turn signal lights, stop/tail lights, rear turn signal light (vehicles with triple-beam head-
lights), rear side marker lights, high mounted stoplight, license plate lights, and outer foot
lights consist of a number of LEDs. If any of the LEDs has burned out, take your vehicle to
your Lexus dealer to have the light replaced.
■Condensation build-up on the inside of a lens
Temporary condensation build-up on the inside of the headlight lens does not indicate a
malfunction. Contact your Lexus dealer for mo re information in the following situations:
●Large drops of water have built up on the inside of a lens.
●Water has built up inside a headlight.
■When replacing light bulbs
P. 626
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
body may get caught on an operating co mponent, possibly causing serious injury.
■Replacing light bulbs
●Turn off the lights. Do not attempt to replac e 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 bu lb with bare hands. When it is unavoid-
able 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 sc ratched 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 th e headlight unit. This may damage the head-
lights or cause condensation to build up on the lens.
●Do not attempt to repair or disassemble th e light bulbs, connectors, electric circuits
or component parts.
Doing so may result in death or se rious 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 prevent heat damage.

6638-2. Steps to take in an emergency
8
When trouble arises
RX350/RX350L_U
Take the appropriate actions as instructed in the message displayed.
If any of the following messages are displa yed, also refer to this Owner’s Manual.
■If “Shift to P Before Exiting Vehicle” is shown
Message is displayed when the driver’s door is opened without turning the
engine switch off with the shift le ver in any position other than P.
Shift the shift lever to P.
■If “Power Turned Off to Save Battery” is displayed
This message is displayed when the power was cut off due to the automatic
power off function.
The next time the engine is started, increase the engine speed slightly and
maintain it at that speed for approximately 5 minutes to recharge the battery.
■If “AWD System Overheated Switching to 2WD Mode” or “AWD System
Overheated 2WD Mode Engaged” is displayed (AWD models)
This message may be displayed when driving under extremely high load con-
ditions.
Drive the vehicle at low speeds or stop the vehicle in a safe place with the
engine running until the message is cleared.
If the message is not cleared, have the vehicle inspected by your Lexus dealer.
■If “A New Key has been Registered Contact Your Dealer for Details” is dis-
played
This message will be displayed each time the driver’s door is opened when the
doors are unlocked from the outside fo r approximately one week after a new
electronic key has been registered.
If this message is displayed but you ha ve not had a new electronic key regis-
tered, ask your Lexus dealer to check if an unknown electronic key (other than
those in your possession) has been registered.
■When “Headlight System Malfunction Visit Your Dealer” is displayed
The following systems may be malfunct ioning. Have the vehicle inspected by
your Lexus dealer immediately.
●The LED headlight system
●The automatic headlight leveling system
●Automatic High Beam
●AFS (Adaptive Front-lighting System) (if equipped)
Other messages displayed on the multi-information display

6648-2. Steps to take in an emergency
RX350/RX350L_U
■If “Forward Camera System Unavailable” or “Forward Camera System
Unavailable Clean Windshield” is displayed
The following systems may be suspended until the problem shown in the mes-
sage is resolved. (P. 290)
●PCS (Pre-Collision System)
●LKA (Lane-Keeping Assist)
●Dynamic radar cruise control with full-speed range
●Automatic High Beam
■If “Oil Maintenance Required Soon” is shown
Indicates that the engine oil is scheduled to be changed.
Check the engine oil, and change if necessary. After changing the engine oil,
the message should be reset. ( P. 597)
■If “Oil Maintenance Required” is shown
Indicates that the engine oil should be changed.
Check and change the engine oil, and o il filter by your Lexus dealer. After
changing the engine oil, the message should be reset. ( P. 597)
■If “Maintenance Required Soon” is displayed (U.S.A. only)
Indicates that all maintenance according to the driven distance on the mainte-
nance schedule
* should be performed soon.
Comes on approximately 4500 miles (7200 km) after the message has been
reset.
If necessary, perform maintenance. Plea se reset the message after the main-
tenance is performed. ( P. 585)
*: Refer to the separate “Scheduled Mainte nance” or “Owner’s Manual Supplement”
for the maintenance interval applicable to your vehicle.

6808-2. Steps to take in an emergency
RX350/RX350L_U
WARNING
■When using the compact spare tire
●Remember that the compact spare tire provided is specifically designed for use with
your vehicle. Do not use your comp act spare tire on another vehicle.
●Do not use more than one compact spare tire simultaneously.
●Replace the compact spare tire with a standard tire as soon as possible.
●Avoid sudden acceleration, abrupt steering, sudden braking and shifting operations
that cause sudden engine braking.
■When the compact spare tire is attached
The vehicle speed may not be correctly detected, and the following systems may not
operate correctly:
Also, not only can the following system not be utilized fully, but it may even negatively
affect the drive-train components:
• AWD system (AWD models)
■Speed limit when using the compact spare tire
Do not drive at speeds in excess of 50 mph (80 km/h) when a compact spare tire is
installed on the vehicle.
The compact spare tire is not designed for driving at high speeds. Failure to observe
this precaution may lead to an accident causing death or serious injury.
■After using the tools and jack
Before driving, make sure all the tools and jack are securely in place in their storage
location to reduce the possibilit y of personal injury during a collision or sudden brak-
ing.
• ABS & Brake assist
•VSC
•TRAC
• Trailer Sway Control
•EPS
• VDIM (if equipped)
• Adaptive Variable Suspension System (if equipped)
• Dynamic radar cruise control with full- speed range
• PCS (Pre-Collision System)
• LKA (Lane-keeping Assist)
• Automatic High Beam • AFS (Adaptive Front-lighting System)
(if equipped)
• Tire pressure warning system
• Intuitive parking assist (if equipped)
• Intelligent Clearance Sonar (ICS) (if equipped)
• Lexus parking assist monitor (if equipped)
• Panoramic view monitor (if equipped)
• BSM (Blind Spot Monitor) (if
equipped)
• Navigation system (if equipped)

7059-1. Specifications
9
Vehicle specifications
RX350/RX350L_U
Type B
A: Wedge base bulbs (amber)B: Wedge base bulbs (clear)
*1: Vehicles with single-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/cm2 or bar)
Rear tire
33 psi (230 kPa, 2.3 kgf/cm2 or bar)
Spare tire
60 psi (420 kPa, 4.2 kgf/cm2 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/cm2 or bar) to the
front and rear tires. Never exceed the maximum
cold tire inflation pressu re indicated on the tire
sidewall.
Wheel size20  8 J, 18  4 T (spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Light bulbs
Light bulbsBulb No.WType
Exterior
Front side marker lights*15B
Front turn signal lights*17444NA28/8A
Rear turn signal lights*121A
Back-up lights921 16B
Interior
Door courtesy lights*25B
Vanity lights8B
Luggage compartment light5B

757Alphabetical index
RX350/RX350L_U
Alarm ............................................................. 77
All-wheel drive lock mode ................377
Anchor brackets ...................................... 57
AntennaRadio ........................................................ 423
Smart access system with push-button start ................... 146
Anti-lock Brake System (ABS)....... 378 Warning light ...................................... 654
Approach warning...............................308
Armrest .................................................... 555
Assist grips .............................................. 556
Audio system (with Lexus Display Audio System) ................... 394 Antenna .................................................. 423
Audio input........................................... 403
AUX port.............................................. 403
Bluetooth
® audio ..............................453
CD player .............................................. 427
iPod ...........................................................434
MP3/WMA disc ............................... 427
Optimal use ........................................... 413
Portable music player ...................... 442
Radio ........................................................420
Setup menu .......................................... 406
Steering wheel audio switches .............................................. 400
USB memory ...................................... 438 Audio system
(with navigation system)
*
Automatic air conditioning system .......................................... 503, 518 Air conditioning filter ........................ 618
S-FLOW mode..................................... 511
Automatic headlight leveling system .....................................................254
Automatic High Beam ....................... 256
Automatic light control system .......252
Automatic transmission.......... 236, 240 If the shift lever cannot be shifted from P ....................... 239, 244
M mode .................................................. 242
Paddle shift switches.............. 241, 242
S mode.....................................................237
AUX port ................................................ 403
Auxiliary boxes ......................... 535, 540
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

764Alphabetical index
RX350/RX350L_U
Garage door opener .......................... 557
Gauges ........................................................ 86
Glove box ................................................530
Grocery bag hooks ............................. 537
Hands-free system (for cellular phone) ........................... 455
Head restraints ........................................ 177
Head-up display..................................... 108
Headlight cleaner...................................261
Headlights ............................................... 252 Automatic headlight leveling .......254
Automatic High Beam ....................256
Light switch ........................................... 252
Replacing light bulbs ....................... 630
Wattage ................................................. 705
Windshield wiper linked headlight illumination................... 255
Heated steering wheel ....................... 522 Heaters
Automatic air conditioning system .......................................503, 518
Heated steering wheel ................... 522
Outside rear view mirrors ..............513
Seat heaters .............................. 522, 523
High mounted stoplight Replacing ...............................................630
Hill-start assist control ....................... 378
Hood ......................................................... 592
Hooks Cargo hooks .......................................536
Cargo net hooks ...............................536
Front passenger footwell hooks....................................................554
Grocery bag hooks ......................... 537
Retaining hooks (floor mat)............. 28
Horn............................................................ 180
HUD (Head-up display)..................... 108
G
H

766Alphabetical index
RX350/RX350L_U
Lane-Keeping Assist (LKA)...............291
Language (multi-information display).................................................... 102
LATCH anchors .......................................67
Lever Auxiliary catch lever .........................592
Hood lock release lever .................592
Shift lever ................................... 236, 240
Turn signal lever .................................246
Wiper lever .................................261, 267
Lexus Climate Concierge ................ 502
Lexus Display Audio controller...... 396
Lexus Enform
*
Lexus Enform Remote*.................... 573
LEXUS Enform Safety Connect ................................................ 568
LEXUS Enform Service
Connect
*............................................. 574
Lexus parking assist monitor ........... 357 Display .................................................... 358
Precautions ...........................................364
Lexus Safety System+..........................274 Automatic High Beam ....................256
Dynamic radar cruise control with full-speed range ................... 300
LKA (Lane-Keeping Assist) .......... 291
PCS (Pre-Collision System) ......... 281 License plate lights
Light switch........................................... 252
Replacing light bulbs .......................630
Light Automatic High Beam.................... 256
Cornering lights ................................. 253
Fog light switch ................................... 260
Headlight switch ................................ 252
Illuminated entry system................. 527
Interior light list .................................... 524
Interior lights ........................................ 525
Luggage compartment light ..........136
Personal lights ..................................... 526
Replacing light bulbs .......................630
Turn signal lever ................................. 246
Vanity lights .......................................... 543
Wattage ................................................. 705
Welcome lighting.............................. 255
Light bulbs Replacing ...............................................630
Wattage ................................................. 705
LKA (Lane-Keeping Assist) .............. 291
Lock steering column......................... 233
Luggage cover .......................................537
L