2015 Lexus GS350 tires

532
GS350_OM_OM30E15U_(U)
7-2. Steps to take in an emergency
If the vehicle becomes stuck
Stop the engine. Set the parking brake and shift the shift lever to P.
Remove the mud, snow or sand from around the rear wheels.
Place wood, stones or some other material under the rear wheels to
help provide traction.
Restart the engine.
Shift the shift lever to D or R and release the parking brake. Then, while
exercising caution, depress the accelerator pedal.
■When it is difficult to free the vehicle
Carry out the following procedures if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:
Press to turn off TRAC. ( P. 2 5 1 )
1
2
3
4
5

536
GS350_OM_OM30E15U_(U)
8-1. Specifications
Maintenance data (fuel, oil level, etc.)
*1: Unladen vehicle
*2: Vehicles with 265/35R19 tires
Dimensions and weight
Overall length190.7 in. (4845mm)
Overall width72.4 in. (1840 mm)
Overall height*12WD57.3 in. (1455 mm)
AW D57.9 in. (1470 mm)
Wheelbase112.2 in. (2850 mm)
Tr e a d*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)

GS350_OM_OM30E15U_(U)
5438-1. Specifications
8
Vehicle specifications
Ty p e A
Ty p e B
Ty p e C
Tires and wheels
Ti r e s i z e225/50R17 94W
Tire inflation pressure
(Recommended cold tire
inflation pressure)Front tire33 psi (230 kPa, 2.3 kgf/cm2 or bar)
Rear tire 33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Wheel size17  7 1 /2J
Wheel nut torque76 f t•lbf (103 N•m, 10.5 kgf•m)
Ti r e s i z e235/45R18 94Y
Tire inflation pressure
(Recommended cold tire
inflation pressure)Front tire
33 psi (230 kPa, 2.3 kgf/cm2 or bar)
Rear tire 33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Wheel size18  8J
Wheel nut torque76 f t•lbf (103 N•m, 10.5 kgf•m)
Ti r e s i z eP235/45R18 94V
Tire inflation
pressure
(Recommended
cold tire inflation
pressure)2WD
Front tire
35 psi (240 kPa, 2.4 kgf/cm2 or bar)
Rear tire 35 psi (240 kPa, 2.4 kgf/cm
2 or bar)
AW D
Front tire33 psi (230 kPa, 2.3 kgf/cm2 or bar)
Rear tire 33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Wheel size18  8J
Wheel nut
torque76 f t•lbf (103 N•m, 10.5 kgf•m)

550
GS350_OM_OM30E15U_(U)
8-1. Specifications
Tire size ( P. 5 5 2 )
DOT and Tire Identification Number (TIN) ( P. 5 5 1 )
Location of treadwear indicators ( P. 410)
Tire ply composition and materials
Plies are layers of rubber-coated 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. 5 5 6 )
Maximum cold tire inflation pressure ( P. 5 5 6 )
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. 415)
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.
1
2
3
4
5
6
7
8
9
10
11

554
GS350_OM_OM30E15U_(U)
8-1. Specifications
This information has been prepared in accordance with regulations issued
by the National Highway Traffic Safety Administration of the U.S. Depart-
ment of Transportation.
It provides the purchasers and/or prospective purchasers of Lexus vehi-
cles with information on uniform tire quality grading.
Your Lexus dealer will help answer any questions you may have as you read this
information.
■DOT quality grades
All passenger vehicle tires must conform to Federal Safety Require-
ments in addition to these grades. Quality grades can be found where
applicable on the tire sidewall between tread shoulder and maximum
section width.
For example: Treadwear 200 Traction AA Temperature A
■Treadwear
The treadwear grade is a comparative rating based on the wear rate of
the tire when tested under controlle d conditions on a specified govern-
ment test course.
For example, a tire graded 150 would wear one and a half (1 - 1 /2) times as well
on the government course as a tire graded 100.
The relative performance of tires depends upon the actual conditions of their
use. Performance may differ significantly from the norm due to variations in
driving habits, service practices and differences in road characteristics and cli-
mate.
■Traction AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B and C, and
they represent the tire’s ability to stop on wet pavement as measured
under controlled conditions on sp ecified government test surfaces of
asphalt and concrete.
A tire marked C may have poor traction performance.
Warning: The traction grade assigned to this tire is based on braking (straight
ahead) traction tests and does not include cornering (turning) traction.
Uniform Tire Quality Grading

GS350_OM_OM30E15U_(U)
5558-1. Specifications
8
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 conditio ns on a specified indoor labora-
tory test wheel.
Sustained high temperature can cause th e material 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 performance 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, underinflation, or excessive loading, either separately or in
combination, can cause heat buildup and possible tire failure.

572
GS350_OM_OM30E15U_(U)
8-3. Initialization
Items to initialize
The following items must be initialized for normal system operation
after such cases as the batter y being reconnected, or maintenance
being performed on the vehicle:
ItemWhen to initializeReference
Message indicating mainte-
nance is required• After the maintenance is per- formedP. 3 8 4
Tire pressure warning system
• When rotating the tires
• When changing the tire infla-tion pressure by changing trav-
eling speed or load weight, etc.
P. 4 1 3

606Alphabetical index
GS350_OM_OM30E15U_(U)
Rear turn signal lights .......................... 190Replacing light bulbs ........................453
Turn signal lever .................................. 190
Wattage ................................................. 545
Rear view mirror Inside rear view mirror ..................... 146
Outside rear view mirrors .............. 148
Rear view monitor system
*
Rear window defoggers .................... 326
Refueling ................................................... 210 Capacity ................................................ 538
Fuel types .............................................. 538
Opening the fuel tank cap...............212
When the fuel filler door cannot be opened ...........................213
Remote Touch
*.................................... 292
Replacing Electronic key battery ...................... 427
Fuses.........................................................429
Light bulbs ............................................. 444
Tires ......................................................... 504
Reporting safety defects for U.S. owners................................... 574
Resetting the message indicating maintenance is required ................ 384 Seat belts .................................................... 30
Adjusting the seat belt.......................... 31
Automatic Locking Retractor .........32
Child restraint system installation ............................................. 62
Cleaning and maintaining the seat belt ........................................ 381
Emergency Locking Retractor (ELR) ..................................32
How to wear your seat belt............. 30
How your child should wear the seat belt ...........................................32
Pre-collision seat belts ........................32
Pregnant women, proper seat belt use ......................................... 33
Reminder light and buzzer ........... 473
Seat belt extender .................................32
Seat belt pretensioners........................ 31
SRS warning light ................................ 471
Seat heaters............................................ 349
Seat position memory .......................... 136
Seat ventilators...................................... 349
Seating capacity ..................................... 174
S