2019 Lexus GS F flat tire

528
GS F_OM_OM30G90U_(U)8-1. Specifications
GS350/GS300 (Type A)
GS350/GS300 (Type B)
Steering
Free playLess than 1.2 in. (30 mm)
Tires and wheels
Tire size225/50R17 94W
Tire inflation
pressure
(Recommended
cold tire inflation
pressure)Vehicle speedFront tire
psi (kPa, kgf/cm2
or bar)Rear tire
psi (kPa, kgf/cm2
or bar)
More than 118 mph
(190 km/h)45 (310, 3.1)45 (310, 3.1)
118 mph (190 km/h)
or less35 (240, 2.4)35 (240, 2.4)
Wheel size17  7 1/2J
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Tire size235/45R18 94Y
Tire inflation
pressure
(Recommended
cold tire inflation
pressure)Vehicle speed
Front tire
psi (kPa, kgf/cm2
or bar)
Rear tire
psi (kPa, kgf/cm2
or bar)
More than 137 mph
(220 km/h)45 (310, 3.1)45 (310, 3.1)
137 mph (220 km/h)
or less35 (240, 2.4)35 (240, 2.4)
Wheel size18  8J
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)

GS F_OM_OM30G90U_(U)
5298-1. Specifications
8
Vehicle specifications
GS350/GS300 (Type C)
GS350/GS300 (Type D)
GS350/GS300 (Type E)
Tire sizeP235/45R18 94V
Tire inflation
pressure
(Recommended
cold tire inflation
pressure)Vehicle speed
Front tire
psi (kPa, kgf/cm2
or bar)
Rear tire
psi (kPa, kgf/cm2
or bar)
More than 99 mph
(160 km/h)45 (310, 3.1)45 (310, 3.1)
99 mph (160 km/h)
or less35 (240, 2.4)35 (240, 2.4)
Wheel size18  8J
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Tire size235/40R19 96Y XL (front), 265/35R19 94Y (rear)
Tire inflation
pressure
(Recommended
cold tire inflation
pressure)Vehicle speedFront tire
psi (kPa, kgf/cm2
or bar)Rear tire
psi (kPa, kgf/cm2
or bar)
More than 137 mph
(220 km/h)45 (310, 3.1)45 (310, 3.1)
137 mph (220 km/h)
or less35 (240, 2.4)36 (250, 2.5)
Wheel size19  8J (235/40R19), 19  9J (265/35R19)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Tire size235/40R19 96Y XL
Tire inflation
pressure
(Recommended
cold tire inflation
pressure)Vehicle speed
Front tire
psi (kPa, kgf/cm2
or bar)
Rear tire
psi (kPa, kgf/cm2
or bar)
More than 137 mph
(220 km/h)45 (310, 3.1)45 (310, 3.1)
137 mph (220 km/h)
or less35 (240, 2.4)36 (250, 2.5)
Wheel size19  8J
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)

530
GS F_OM_OM30G90U_(U)8-1. Specifications
GS350/GS300 (Type F)
GS350/GS300 (Compact spare tire)
Tire size235/40R19 96V XL
Tire inflation
pressure
(Recommended
cold tire inflation
pressure)Vehicle speed
Front tire
psi (kPa, kgf/cm2
or bar)
Rear tire
psi (kPa, kgf/cm2
or bar)
More than 99 mph
(160 km/h)45 (310, 3.1)45 (310, 3.1)
99 mph (160 km/h)
or less35 (240, 2.4)36 (250, 2.5)
Wheel size19  8J
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Tire sizeT155/70D17 110M, T145/70D18 107M
Tire inflation pressure
(Recommended cold tire
inflation pressure)60 psi (420kPa, 4.2kgf/cm2 or bar)
Wheel size17  4T (T155/70D17), 18  4T (T145/70D18)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)

GS F_OM_OM30G90U_(U)
5318-1. Specifications
8
Vehicle specifications
GS F
*: If equipped
Tire size255/35ZR19 (92Y) (front), 275/35ZR19 (96Y) (rear),
225/40ZR19 (93Y) XL (spare)
*
Tire inflation pressure
(Recommended
cold tire inflation
pressure)
Vehicle speed
Front tire
psi (kPa, kgf/cm2
or bar)
Rear tire
psi (kPa, kgf/cm2
or bar)
More than 137 mph
(220 km/h)44 (300, 3.0)44 (300, 3.0)
137 mph (220 km/h)
or less36 (250, 2.5)36 (250, 2.5)
Tire inflation pressure
(spare)
(Recommended
cold tire inflation
pressure)
42 psi (290kPa, 2.9kgf/cm2 or bar)
Wheel size19  9J (255/35ZR19), 19  10J (275/35ZR19),
19  8 1/2J (225/40ZR19)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Light bulbs
Light bulbsBulb No.WType
ExteriorFront turn signal lights*7444NA28A
Outer foot lightsW5W5B
InteriorVanity lights8B
Trunk light3.8B
A: Wedge base bulbs (amber)
B: Wedge base bulbs (clear)
*: Vehicles with single-beam headlights

536
GS F_OM_OM30G90U_(U)8-1. Specifications
Tire size
( P. 537)
DOT and Tire Identification Number (TIN) ( P. 537)
Location of trea dwear indicators ( P. 393)
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. 540)
Maximum cold tire inflation pressure ( P. 540)
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. 397)
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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540
GS F_OM_OM30G90U_(U)8-1. Specifications
■Temperature A, B, C
The temperature grades are A (the highes
t), 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 temperature 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.
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

GS F_OM_OM30G90U_(U)
5418-1. Specifications
8
Vehicle specifications
Occupant distributionDistribution of occupants in a vehicle as specified in the
third column of Table 1* below
Production options weight
The combined weight of installed 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
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
tireThe 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
Bead
The 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 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
Tire related termMeaning

542
GS F_OM_OM30G90U_(U)8-1. Specifications
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
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) 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
Tire related termMeaning