2020 LEXUS RX450H flat tire

7189-1. Specifications
RX350/RX350L_U
Bead separationA breakdown of the bond between components in the
bead
Bias ply tire
A pneumatic tire in which the ply cords that extend to
the beads are laid at altern ate angles substantially less
than 90 degrees to the centerline of the tread
CarcassThe tire structure, except tread and sidewall rubber
which, when inflated, bears the load
ChunkingThe breaking away of pieces of the tread or sidewall
CordThe strands forming th e plies in the tire
Cord separationThe parting of cords from adjacent rubber compounds
CrackingAny parting within the tread, sidewall, or innerliner of
the tire extending to cord material
CT
A pneumatic tire with an inverted flange tire and rim
system in which the rim is designed with rim flanges
pointed radially inward and the tire is designed to fit on
the underside of the rim in a manner that encloses the
rim flanges inside the air cavity of the tire
Extra load tireA tire designed to operate at higher loads and at higher
inflation pressures than the corresponding standard tire
GrooveThe space between two adjacent tread ribs
InnerlinerThe layer(s) forming the insi de surface of a tubeless tire
that contains the inflating medium within the tire
Innerliner separationThe parting of the innerliner from cord material in the
carcass
Tire related termMeaning

7199-1. Specifications
9
Vehicle specifications
RX350/RX350L_U
Intended outboard sidewall
(a) The sidewall that contains a whitewall, bears white
lettering, or bears manufacturer, brand, and/or
model name molding that is higher or deeper than
the same molding on the other sidewall of the tire, or
(b) The outward facing sidewall of an asymmetrical tire
that has a particular side that must always face out-
ward when mounted on a vehicle
Light truck (LT) tireA tire designated by its manufacturer as primarily
intended for use on lightweig ht trucks or multipurpose
passenger vehicles
Load ratingThe maximum load that a tire is rated to carry for a given
inflation pressure
Maximum load ratingThe load rating for a tire at the maximum permissible
inflation pressure for that tire
Maximum permissible infla-
tion pressureThe maximum cold inflation pr essure to which a tire may
be inflated
Measuring rimThe rim on which a tire is fitted for physical dimension
requirements
Open spliceAny parting at any junction of tread, sidewall, or inner-
liner that extends to cord material
Outer diameterThe overall diameter of an inflated new tire
Overall width
The linear distance between the exteriors of the side-
walls of an inflated tire, including elev ations due to label-
ing, decorations, or protective bands or ribs
Passenger car tireA tire intended for use on passenger cars, multipurpose
passenger vehicles, and trucks, that have a gross vehicle
weight rating (GVWR) of 10,000 lb. or less.
PlyA layer of rubber-coat ed parallel cords
Ply separationA parting of rubber compou nd between adjacent plies
Tire related termMeaning

7209-1. Specifications
RX350/RX350L_U
Pneumatic tire
A mechanical device made of rubber, chemicals, fabric
and steel or other materials, that, when mounted on an
automotive wheel, provides the traction and contains
the gas or fluid that sustains the load
Radial ply tireA pneumatic tire in which the ply cords that extend to
the beads are laid at substa ntially 90 degrees to the
centerline of the tread
Reinforced tire A tire designed to operate at higher loads and at higher
inflation pressures than the corresponding standard tire
Section widthThe linear distance between the exteriors of the side-
walls of an inflated tire, excluding elevations due to
labeling, decoration, or protective bands
SidewallThat portion of a tire between the tread and bead
Sidewall separationThe parting of the rubber compound from the cord
material in the sidewall
Snow tire
A tire that attains a traction index equal to or greater
than 110, compared to the ASTM E-1136 Standard Ref-
erence Test Tire, when using the snow traction test as
described in ASTM F-1805-00, Standard Test Method
for Single Wheel Driving Traction in a Straight Line on
Snow-and Ice-Covered Surfaces, and which is marked
with an Alpine Symbol (
) on at least one sidewall
Test rimThe rim on which a tire is fitted for testing, and may be
any rim listed as appropriate for use with that tire
TreadThat portion of a tire that comes into contact with the
road
Tread ribA tread section running circ umferentially around a tire
Tire related termMeaning

735
RX350/RX350L_U
9
Vehicle specifications
9-3. Initialization
*:If equipped
Items to initialize
The following items must be initialized for normal system operation after such
cases as the battery being reconnected, or maintenance being performed on
the vehicle.
ItemWhen to initializeReference
Message indicating mainte-
nance is required (U.S.A. only)• After the maintenance is per- formedP. 585
Tire pressure warning system
• When changing the tire inflationpressure by changing traveling
speed
• When changing the tire size
• When rotating the tires
P. 606
Oil maintenance• After the maintenance is per- formedP. 597
Intelligent Clearance Sonar
(ICS)
*
• After reconnecting or changingthe batteryP. 347
Power back door• After reconnecting or changingthe batteryP. 138

755What to do if... (Troubleshooting)
RX350/RX350L_U
●Stop the vehicle in a safe place and replace the flat tire with the spare tire.
( P. 666)
●Try the procedure for when the vehicle becomes stuck in mud, dirt, or snow.
( P. 695)
When a problem has occurred
If you have a flat tire
The vehicle becomes stuck

762Alphabetical index
RX350/RX350L_U
Eco drive mode ..................................... 373
Eco Driving Indicator........................... 105
EDR (Event data recorder) ...................10
Electric Power Steering (EPS) ....... 378Warning light ...................................... 655
Electronic key ......................................... 120 Battery-saving function .....................147
If the electronic key does not operate properly............................ 684
Replacing the battery .......................623
Emergency flashers ............................. 644
Emergency, in case of If a warning buzzer sounds.......... 654
If a warning light turns on.............. 654
If a warning message is displayed.............................................. 661
If the battery is discharged ........... 687
If the electronic key does not operate properly............................ 684
If the engine will not start............... 682
If you have a flat tire ......................... 666
If you lose your keys .................. 121, 123
If you think something is wrong ...................................................652
If your vehicle becomes stuck .... 695
If your vehicle has to be stopped in an emergency .. 645
If your vehicle needs to be towed................................................... 646
If your vehicle overheats ................692 Engine
ACCESSORY mode ..................... 232
Compartment ..................................... 594
Engine switch ........................................ 231
Hood........................................................ 592
How to start the engine.................... 231
Identification number.......................700
If your vehicle has to be stopped in an emergency.......... 645
Ignition switch (engine switch) ..... 231
Overheating......................................... 692
Engine coolant Capacity................................................. 702
Checking .............................................. 598
Preparing and checking before winter ....................................384
Engine coolant temperature gauge ........................................................ 86
Engine immobilizer system .................. 74
Engine oil Capacity.................................................700
Checking ...............................................595
Preparing and checking before winter ....................................384
Engine oil maintenance data ............597
Engine switch ........................................... 231
Enhanced VSC ..................................... 378
EPS (Electronic Power Steering) ........ 378 Warning light .......................................655
Event data recorder (EDR)................... 10
E

763Alphabetical index
RX350/RX350L_U
Flat tire ...................................................... 666
Floor mats ................................................... 28
FluidAutomatic transmission ..................703
Brake ........................................................704
Washer .................................................. 603
Fog lights Replacing light bulbs ....................... 630
Switch...................................................... 260
Front automatic air conditioning system .........................503
Front passenger footwell hooks ..... 554
Front passenger occupant classification system .............................47
Front passenger’s seat belt reminder light ..................................... 656
Front seat heaters................................. 522
Front seats .................................................156 Adjustment ............................................. 156
Cleaning .................................................. 581
Correct driving posture ....................30
Driving position memory ................. 172
Head restraints ...................................... 177
Power easy access system ............. 172
Seat heaters .......................................... 522
Seat position memory........................ 172 Front side marker lights
Light switch........................................... 252
Replacing light bulbs .......................630
Wattage ................................................. 705
Front turn signal lights Replacing light bulbs .......................630
Turn signal lever ................................. 246
Wattage ................................................. 705
Fuel Capacity.................................................700
Fuel gauge ............................................... 86
Information............................................ 706
Refueling ................................................ 269
Type..........................................................700
Fuel filler door.........................................269 Refueling ................................................ 269
When the fuel filler door cannot be opened ..........................272
Fuses.......................................................... 625
F

771Alphabetical index
RX350/RX350L_U
Service reminder indicators ............... 80
Shift leverAutomatic transmission ..... 236, 240
If the shift lever cannot be shifted from P................. 239, 244
Shift lock system.........................238, 243
Side airbags ............................................... 37
Side doors.................................................. 124
Side marker lights Light switch ........................................... 252
Replacing light bulbs ....................... 630
Side mirrors ............................................. 184 Adjusting and folding........................ 184
BSM (Blind Spot Monitor)............. 313
Heaters..................................................... 513
Side turn signal lights Replacing light bulbs ....................... 630
Turn signal lever .................................246
Smart access system with push-button start .................................146 Antenna location ................................. 146
Entry functions ............................ 124, 130
Starting the engine ..............................231
Snow tires ................................................ 386
Spare tire Inflation pressure ................................704
Storage location .................................667 Spark plug ................................................702
Specifications......................................... 698
Speedometer ............................................ 86
Sport mode ..............................................373
Steering wheel ....................................... 180
Adjustment............................................. 180
Audio switches .................................. 400
Heated steering wheel ................... 522
Power easy access system ............. 172
Telephone switches.......................... 465
Stop lights Replacing light bulbs .......................630
Storage feature ..................................... 528
Storage precautions ........................... 528
Stuck If the vehicle becomes stuck........695
Sun visors................................................. 543
Sunshade Panoramic moon roof.......................195
Rear door ..............................................554
Roof ............................................................ 192