weight Lexus GS350 2018 User Guide

GS350_300_GS F_OM_OM30G34U_(U)
4056-3. Do-it-yourself maintenance
6
Maintenance and care
■Instructions for checking tire inflation pressure
When checking tire inflation pressure, observe the following:
●Check only when the tires are cold.
If your vehicle has been parked for at least 3 hours or has not been driven for more than
1 mile or 1.5 km, you will get an accurate cold tire inflation pressure reading.
●Always use a tire pressure gauge.
It is difficult to judge if a tire is properly inflated based only on its appearance.
●It is normal for the tire inflat ion pressure to be higher after driving as heat is generated
in the tire. Do not reduce tire inflation pressure after driving.
●Never exceed the vehicle capacity weight.
Passengers and luggage weight should be placed so that the vehicle is balanced.
WARNING
■Proper inflation is critical to save tire performance
Keep your tires properly inflated.
If the tires are not properly inflated, the following conditions may occur which could
lead to an accident resulting in death or serious injury:
●Excessive wear
●Uneven wear
●Poor handling
●Possibility of blowouts resu lting from overheated tires
●Air leaking from between tire and wheel
●Wheel deformation and/or tire damage
●Greater possibility of tire damage while driving (due to road hazards, expansion
joints, sharp edges in the road, etc.)
NOTICE
■When inspecting and adjust ing tire inflation pressure
Be sure to put the tire valve caps back on.
If a valve cap is not installed, dirt or moisture may get into the valve and cause an air
leak, resulting in decreased tire inflation pressure.

406
GS350_300_GS F_OM_OM30G34U_(U)6-3. Do-it-yourself maintenance
Wheels
When replacing wheels, care should be ta
ken to ensure that they are equivalent
to those removed in load capacity, diameter, rim width and inset
*.
Replacement wheels are available at your Lexus dealer.
*: Conventionally referred to as “offset”.
Lexus does not recommend using the following:
●Wheels of different sizes or types
●Used wheels
●Bent wheels that have been straightened
●Steel wheels (2WD F SPORT models only)
●Use only Lexus wheel nuts and wrenches designed for use with your alumi-
num wheels.
●When rotating, repairing or changing your tires, check that the wheel nuts are
still tight after driving 1000 miles (1600 km).
●Be careful not to damage the aluminum wheels when using tire chains.
●Use only Lexus genuine balance weights or equivalent and a plastic or rubber
hammer when balancing your wheels.
■When replacing wheels
The wheels of your vehicle are equipped with tire pressure warning valves and transmit-
ters that allow the tire pressure warning system to provide advance warning in the event
of a loss in tire inflation pressure. Whenever wheels are replaced, tire pressure warning
valves and transmitters must be installed. (→P. 394)
If a wheel is bent, cracked or heavily corroded, it should be replaced. Other-
wise, the tire may separate from the wheel or cause a loss of handling control.
Wheel selection
Aluminum wheel precautions

518
GS350_300_GS F_OM_OM30G34U_(U)8-1. Specifications
Maintenance data (fuel, oil level, etc.)
GS350/GS300
*1:Unladen vehicle
*2: Vehicles with 265/35R19 tires
GS F
*:Unladen vehicle
Dimensions and weight
Overall length190.9 in. (4850 mm)
Overall width72.4 in. (1840 mm)
Overall height*12WD57.3 in. (1455 mm)
AWD57.9 in. (1470 mm)
Wheelbase112.2 in. (2850 mm)
Tread*1
Front62.0 in. (1575 mm)
Rear62.6 in. (1590 mm)
61.4 in. (1560 mm)
*2
Vehicle capacity weight
(Occupants + luggage)825 lb. (370 kg)
Overall length193.5 in. (4915 mm)
Overall width72.6 in. (1845 mm)
Overall height*56.7 in. (1440 mm)
Wheelbase112.2 in. (2850 mm)
Tread*Front61.2 in. (1555 mm)
Rear61.4 in. (1560 mm)
Vehicle capacity weight
(Occupants + luggage)865 lb. (390 kg)

540
GS350_300_GS F_OM_OM30G34U_(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

GS350_300_GS F_OM_OM30G34U_(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

GS350_300_GS F_OM_OM30G34U_(U)
5438-1. Specifications
8
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 compou nd 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
Tire related termMeaning

560
GS350_300_GS F_OM_OM30G34U_(U)8-3. Initialization
Items to initialize
*1: U.S.A. only
*2: GS350/GS300
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
*1• After the maintenance is per- formedP. 366
Oil maintenance*2• After the maintenance is per-
formedP. 384
Tire pressure warning system
• When rotating the tires
• When changing the tire inflationpressure by changing traveling
speed or load weight, etc.
P. 395

597Alphabetical index
GS350_300_GS F_OM_OM30G34U_(U)
Warning buzzersApproach warning ............................265
Brake system........................................434
Downshifting ........................................207
Intuitive parking assist
*
Key reminder ...................................... 469
Open door ............................................443
Open moon roof .............................. 456
Open hood ...........................................443
Open trunk ...........................................443
Open window .................................... 456
Seat belt reminder .............................436
Warning lights .......................................... 80 ABS...........................................................434
AFS OFF indicator ............................435
Brake system............................434, 436
Charging system................................434
Electric power steering...................435
Low fuel level .......................................436
Malfunction indicator lamp ...........434
Master warning light.........................436
Open door ............................................436
Parking brake indicator ..................436
Pre-collision system..........................435
Seat belt reminder light...................436
Slip indicator .........................................435
SRS ............................................................434
Tire pressure ........................................436 Warning messages................................ 441
Warning reflector storage belt .......337
Washer ......................................................223
Checking ............................................... 392
Low washer fluid warning message............................. 441
Preparing and checking before winter .................................... 296
Switch ...................................................... 223
Washing and waxing .......................... 358
Weight Cargo capacity.....................................194
Load limits ...............................................194
Weight ..................................................... 518
Welcome light illumination control .....................................................138
Wheels Replacing ...............................................406
Size ...........................................................528
Window glasses...................................... 175
Window lock switch.............................. 175
Windows.................................................... 175 Power windows.................................... 175
Rear window defogger .................... 314
Washer ................................................... 223
Windshield wiper de-icer ................... 314
Windshield wipers ................................223 Position ................................................... 299
Rain-sensing windshield wipers................................................... 223
W
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.