2020 LEXUS RX450H tire

TABLE OF CONTENTS6
RX350/RX350L_U
7-1. Maintenance and careCleaning and protecting the vehicle exterior ................ 576
Cleaning and protecting the vehicle interior................... 581
7-2. Maintenance Maintenance requirements ............................ 584
General mainte nance.............. 586
Emission inspection and maintenance (I/M)
programs....................................589
7-3. Do-it-yourself maintenance
Do-it-yourself service precautions................................590
Hood ............................................... 592
Positioning a floor jack ............ 593
Engine compartment ............... 594
Tires ................................................. 604
Tire inflation pressure ................613
Wheels .............................................616
Air conditioning filter ................ 618
Windshield wiper inserts ..........621
Electronic key battery.............. 623
Checking and replacing fuses.............................................. 625
Headlight aim .............................. 628
Light bulbs .................................... 630 8-1. Essential information
Emergency flashers .................. 644
If your vehicle has to be stopped in
an emergency .......................... 645
8-2. Steps to take in an emergency
If your vehicle needs to be towed ............................... 646
If you think something is wrong........................................... 652
Fuel pump shut off system...... 653
If a warning light turns on or a warning buzzer
sounds ......................................... 654
If a warning message is displayed ......................................661
If you have a flat tire .................. 666
If the engine will not start ........ 682
If the electronic key does not operate properly ............. 684
If the vehicle battery is discharged................................. 687
If your vehicle overheats......... 692
If the vehicle becomes stuck ............................................. 695
7Maintenance and care8When trouble arises

7
1
9 8
7 5 4
3
2
10
RX350/RX350L_U
6
9-1. Specifications Maintenance data (fuel, oil level, etc.) .................. 698
Fuel information ......................... 706
Tire information .......................... 709
9-2. Customization Customizable features .............722
9-3. Initialization Items to initialize......................... 735
Reporting safety defects for U.S. owners ........................................... 738
Seat belt instructions for Canadian owners (in French)........ 739
SRS airbag instructions for Canadian owners (in French)........ 740
Headlight aim instructions for Canadian owners (in French)........ 748 What to do if...
(Troubleshooting)............................... 752
Alphabetical inde x ................................ 756
9Vehicle specifications
10For owners
Index
For vehicles with a navigation system, refer to the “NAVIGATION SYSTEM
OWNER’S MANUAL” for information re garding the equipment listed below.
• Navigation system
• Audio/visual system
• Rear seat entertainment system• Panoramic view monitor
•Lexus Enform

15Pictorial index
RX350/RX350L_U
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 261
Precautions for winter season. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 384
To prevent freezing (windshield wiper de-icer)
*. . . . . . . . . . . . . . . . . . . . . . . . P. 513
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 578
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 269
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 271
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 700
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 604
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 704
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 38 4
Checking/rotation/tire pressure warning system . . . . . . . . . . . . . . . . . . . . . . P. 604
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 666
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 592
Opening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 592
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 700
Coping with overheat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 692
Headlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 252
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 2 46
Parking lights/daytime running lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 252
Front side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 252
Fog lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 260
Cornering lights
*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 253
Stop/tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P . 252
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 252
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 240
Rear side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 252
4
5
6
7
Light bulbs of the exte rior lights for driving
(Replacing method: P. 630, Watts: P. 705)
*: If equipped
8
9
10
11
12
13
14
15
16
17

311-1. For safe use
1
For safety and security
RX350/RX350L_U
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
●Do not adjust the position of the driver’s seat while driving.
Doing so could cause the driver to lose control of the vehicle.
●Do not place a cushion between the dr iver or passenger and the seatback.
A cushion may prevent correct posture from being achieved, and reduce the effec-
tiveness of the seat be lt and head restraint.
●Do not place anything under the front seats.
Objects placed under the fr ont seats may become jammed in the seat tracks and stop
the seat from locking in plac e. This may lead to an accident and the adjustment mech-
anism may also be damaged.
●Always observe the legal speed limi t when driving on public roads.
●When driving over long distances, take regular breaks before you start to feel tired.
Also, if you feel tired or sleepy while drivin g, do not force yourself to continue driving
and take a break immediately.

822. Instrument cluster
RX350/RX350L_U
*1: These lights turn on when the engine switch is turned to IGNITION ON mode to indicate that a system check is being performed. They will turn off after the engine is
started, or after a few seconds. There may be a malfunction in a system if a light does
not come on, or turn off. Have the ve hicle inspected by your Lexus dealer.
*2: This light flashes to indicate a malfunction.
*3: This light flashes or illuminates to indicate a malfunction.
*4: This light illuminates on the center panel.
*5:RX350
*6:RX350L
The indicators inform the driver of the op erating state of the vehicle’s various sys-
tems.
Low fuel level warning light
(  P. 656)*4, 6Rear passengers’ seat
belt reminder light
( P. 656)
Driver’s and front
passenger’s seat belt
reminder light ( P. 656)
*1Tire pressure warning light
( P. 656)
*4, 5Rear passengers’ seat
belt reminder light
( P. 656)*1Master warning light
( P. 657)
Indicators
Turn signal indicator
( P. 246) Fog light indicator
(
 P. 260)
(U.S.A.)
Headlight indicator
( P. 252) Cruise control indicator
(
 P. 300)
(Canada)
Tail light indicator
( P. 252) Radar cruise control
indicator (
P. 300)
Headlight high beam
indicator ( P. 253) Cruise control “SET”
indicator (
P. 300)
*1Automatic High Beam
indicator ( P. 256) LKA indicator (
P. 291)

962. Instrument cluster
RX350/RX350L_U
■G-force (if equipped)
Displays lateral G-forces on the vehicle.
Also displays, around the periphery of the G-force display, the left and right
steering amount, accelerator pedal input, and brake fluid pressure.
Acceleration G-force on the
vehicle
Current G-force value (analyzed
value of front/rear and left/right
G-forces)
Record of the maximum G-forces
Accelerator pedal input
Brake fluid pressure
Steering amount
This display is intended for use as a guideline. Depending on factors such as the
road surface condition, temperature and vehicle speed, the display may not show
the actual condition of the vehicle.
●Resetting the record of maximum G-forces
Press and hold to reset the record.
●Peak hold function
If lateral G-forces of 0.5 G or grea ter are generated, the G-force value
display will turn amber and be held for 2 seconds.
■Tire pressure
 P. 605
■Units (if equipped)
The units of measure used can be changed while driving.
Unlike the units setting performed on , the units setting performed on can
be changed while driving.
■Blank (No items)
Displays no drive information contents.
1
2
3
4
5
6

1012. Instrument cluster
2
Instrument cluster
RX350/RX350L_U
■Vehicle settings
ItemSettingsDetails
PBD (Power back door) ( P. 130)
The following power back door settings can be changed:
System settings
All OnSelect to enable the power back door
system.
Touchless Sensor
Off (if equipped)Select to disable the touchless sensor.
(Other power back door functions
remain enabled.)
All OffSelect to disable the power back door
system.
Open position adjust-
mentSelect to set the open position at
which the power back door will stop
when opened automatically.
Volume
3 (Loud)Select to set the volume of the buzzer
which sounds when the power back
door is operated.
2 (Medium)
1 (Low)
TPMS (Tire pressure warning system) (P. 605)
Tire pressure warning system initialization
Select to initialize the tire pressure
warning system. To perform initializa-
tion, press and hold the
switch.
Before performing initialization, make
sure to adjust the inflation pressure of
each tire to the specified level.
(  P. 606)

1062. Instrument cluster
RX350/RX350L_U
■Background color of the indicator/shift posi tion display area (except F SPORT models)
The background color of the indicator/shift position display area is changed according to
the driving mode as follows ( P. 373):
●Eco drive mode: Blue
●Sport mode: Red
■G-force display (if equipped)
●The G-force values may not be zero even when the vehicle is parked, such as when it is
parked on an incline.
●Depending on the vehicle usage conditions, the brake fluid pressure display may not
reach its maximum reading even though the brake pedal is fully depressed.
●If a battery terminal is disconnected and reconnected, the steering amount display may
be disabled temporarily. Afte r driving the vehicle for a while , the display will be enabled.
■Suspension of the settings display
●Some settings cannot be changed while driv ing. When changing settings, park the
vehicle in a safe place.
●If a warning message is displa yed, operation of the settings display will be suspended.
■Tire pressure
●It may take a few minutes to display the tire inflation pressure after the engine switch is
turned to IGNITION ON mode. It may also take a few minutes to display the tire infla-
tion pressure after inflation pressure has been adjusted.
●“---” may be displayed if the tire position information cannot be determined due to
unfavorable radio wave conditions.
●Tire inflation pressure changes with temperat ure. The displayed values may also be dif-
ferent from the values measured using a tire pressure gauge.
■Liquid crystal display
Small spots or light spots may appear on the display. This phenomenon is characteristic
of liquid crystal displays, and there is no problem continuing to use the display.
■Customization
Some functions can be customized. ( P. 97, 722)