flat tire LEXUS RC350 2017 Workshop Manual

6629-1. Specifications
Tire size (→ P. 664)
DOT and Tire Identification Number (TIN) (→ P. 663)
Location of trea dwear indicators (→ P. 517)
Tire ply composition and materials
Plies are layers of rubber-c oated parallel cords. Cords are the strands which form the
plies in a tire.
Radial tires or bias-ply tires
A radial tire has “RADIAL” on the sidewall. A tire not marked “RADIAL” is a bias-ply
tire.
TUBELESS or TUBE TYPE
A tubeless tire does not have a tube and air is directly put into the tire. A tube type tire
has a tube inside the tire and the tube maintains the air pressure.
Load limit at maximum cold tire inflation pressure (→ P. 668)
Maximum cold tire inflation pressure (→ P. 668)
This means the pressure to which a tire may be inflated.
Uniform tire quality grading
For details, see “Uniform Tire Quality Grading” that follows.
Summer tires or all season tires (→ P. 521)
An all season tire has “M+S” on the side wall. A tire not marked “M+S” is a summer
tire.
“TEMPORARY USE ONLY”
A compact spare tire is identified by the phrase “TEMPORARY USE ONLY” molded
on its sidewall. This tire is designed for temporary emergency use only.
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6679-1. Specifications
9
Vehicle specifications
■Temperature A, B, C
The temperature grades are A (the highest), B, and C, representing the tire’s
resistance to the generation of heat and its ability to dissipate heat when
tested under controlled conditions on a specified indoor laboratory test
wheel.
Sustained high temperature can cause the ma terial of the tire to degenerate and
reduce tire life, and excessive temperat ure can lead to sudden tire failure.
Grade C corresponds to a level of perfor mance which all passenger car tires must
meet under the Federal Motor Vehicle Safety Standard No. 109.
Grades B and A represent higher levels of performance on the laboratory test
wheel than the minimum required by law.
Warning: The temperature grades of a tire assume that it is properly inflated and
not overloaded.
Excessive speed, underi nflation, or excessive loading, either separately or in com-
bination, can cause heat buildup and possible tire failure.

6689-1. Specifications
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pressure
Tire pressure when the vehicle has been parked for
three hours or more, or has not been driven more than 1
mile or 1.5 km un der that condition
Maximum inflation pres-
sureThe maximum cold inflated pr essure to which a tire may
be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a manu-
facturer
Accessory weight
The combined weight (in exce ss of those standard items
which may be replaced) of automatic transmission,
power steering, power brakes, power windows, power
seats, radio and heater, to the extent that these items are
available as factory-installed equipment (whether
installed or not)
Curb weight
The weight of a motor vehicle with standard equipment,
including the maximum capacity of fuel, oil and coolant,
and if so equipped, air co nditioning and additional
weight optional engine
Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the numb er of occupants specified
in the second column of Table 1* that follows
Occupant distributionDistribution of occupants in a vehicle as specified in the
third column of Table 1
* below
Production options weight
The combined weight of in stalled regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they re place, not previously con-
sidered in curb weight or accessory weight, including
heavy duty brakes, ride levelers, roof rack, heavy duty
battery, and special trim
RimA metal support for a tire or a tire and tube assembly
upon which the tire beads are seated

6699-1. Specifications
9
Vehicle specifications
Rim diameter
(Wheel diameter)Nominal diameter of the bead seat
Rim size designationRim diameter and width
Rim type designationThe industry manufacturer’s designation for a rim by
style or code
Rim widthNominal distance between rim flanges
Vehicle capacity weight
(Total load capacity)The rated cargo and luggage load plus 150 lb. (68 kg)
times the vehicle’s desi gnated seating capacity
Vehicle maximum load on
the tireThe load on an individual tire that is determined by dis-
tributing to each axle its share of the maximum loaded
vehicle weight, and dividing by two
Vehicle normal load on the
tire
The load on an individual tire that is determined by dis-
tributing to each axle its sh are of curb weight, accessory
weight, and normal occupant weight (distributed in
accordance with Table 1
* below), and dividing by two
Weather sideThe surface area of the rim not covered by the inflated
tire
BeadThe part of the tire that is made of steel wires, wrapped
or reinforced by ply cords an d that is shaped to fit the
rim
Bead separationA breakdown of the bond between components in the
bead
Bias ply tireA pneumatic tire in which the ply cords that extend to
the beads are laid at alternate 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
Tire related termMeaning

6709-1. Specifications
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 inside 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
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 ot her sidewall of the tire,
or
(b) The outward facing sidewa ll of an asymmetrical tire
that has a particular side that must always face out-
ward when mounted on a vehicle
Light truck (LT) tire
A 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
Tire related termMeaning

6719-1. Specifications
9
Vehicle specifications
Overall widthThe 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 tire
A 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 compound between adjacent plies
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 tire
A 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 width
The 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
Tire related termMeaning

6849-3. Items to initialize
*: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. 489
Engine oil maintenance data*After changing the engine oilP. 507
Tire pressure warning system
• When rotating the tires
• When changing the tire inflation pressure by changing traveling
speed or load weight, etc.
P. 519

701What to do if... (Troubleshooting)
●Vehicles with a spare tire
Stop the vehicle in a safe place and replace the flat tire with the spare tire.
(→ P. 592)
●Vehicles with an emergency tire puncture repair kit
Stop the vehicle in a safe place and repair the flat tire temporarily with the
emergency tire puncture repair kit. ( →P. 606)
●Try the procedure for when the vehicle becomes stuck in mud, dirt, or snow.
(→ P. 636)
When a problem has occurred
If you have a flat tire
The vehicle becomes stuck

707Alphabetical index
E-mail......................................................... 405
Eco drive mode ..................................... 294
Eco Driving Indicator............................. 94
Eco Driving Indicator Light ....... 114, 126
Eco driving meter .................................. 102
EDR (Event data recorder) ...................10
Elapsed time ......................................112, 119
Electric Power Steering (EPS) ....... 299Warning light ...................................... 566
Electronic key ..........................................136 Battery-saving function .................... 154
If the electronic key does not operate properly............................. 622
Replacing the battery ...................... 538 Emergency flashers ............................ 554
Emergency tire puncture
repair kit................................................ 606
Emergency, in case of If a warning buzzer sounds ..........565
If a warning light turns on ..............565
If a warning message is displayed .......................................... 571
If the electronic key does not operate properly ........ 622
If the engine will not start ............... 620
If the vehicle battery is discharged......................................... 626
If you have a flat tire ............. 592, 606
If you think something is wrong ..............................................563
If your vehicle becomes stuck..... 636
If your vehicle has to be stopped in an emergency..........555
If your vehicle needs to be towed .......................................556
If your vehicle overheats ................630
E

708Alphabetical index
Engine ....................................................... 643ACCESSORY mode..................... 208
Compartment....................................... 501
Engine switch .......................................207
Hood ........................................................ 497
How to start the engine ..................207
Identification number .......................642
If the engine will not start............... 620
Ignition switch (engine switch)....207
Overheating ........................................ 630
Engine coolant.......................................509 Capacity ................................................ 648
Checking............................................... 509
Preparing and checking before winter ..................................... 331
Engine coolant temperature gauge .............................................. 96, 102
Engine immobilizer system ..................79
Engine oil ................................................. 504 Capacity .................................................644
Checking............................................... 504
Preparing and checking before winter ..................................... 331
Engine oil maintenance data ........... 507
Engine oil temperature gauge ......... 102
Engine switch ......................................... 207
Enhanced VSC ..................................... 298
EPS (Electric Power Steering) ....... 299 Warning light ...................................... 566
Event data recorder (EDR) ...................10
Expert mode ........................................... 302 First-aid kit storage belt..................... 454
Flat tire
Vehicles with a spare tire .............. 592
Vehicles with emergency tire puncture repair kit ........................ 606
Floor mats................................................... 30
Fluid Automatic transmission .................. 649
Brake..........................................................651
Washer .....................................................516
Fog lights...................................................232 Replacing light bulbs ...................... 550
Switch ...................................................... 232
Footwell light .......................................... 448 Wattage ................................................. 657
Front fog lights........................................232 Replacing light bulbs ...................... 550
Switch ...................................................... 232
Front passenger occupant classification system ............................. 51
Front seats ................................................. 164 Adjustment..............................................164
Cleaning.................................................485
Correct driving posture .....................32
Driving position memory.................169
Head restraints ..................................... 173
Jam protection function....................165
Seat heaters .......................................... 446
Seat position memory .......................169
Seat ventilators.................................... 447F