2008 Lexus GS350 Tire

536
5-2. Steps to take in an emergency
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June 19, 2008 12:54 pm
If the vehicle becomes stuck
CAUTION
■When attempting to free a stuck vehicle
If you choose to rock the vehicle back and forth to free it, make sure the surround-
ing area is clear, to avoid striking other vehicles, objects or persons. The vehicle
may also lunge forward or lunge back suddenly as it becomes free. Use extreme
caution.
■When shifting the shift lever
Be careful not to shift the shift lever with the accelerator pedal depressed.
This may lead to unexpected rapid acceleration of the vehicle that may cause an
accident and result in death or serious injury.
Carry out the following procedures if the tires spin or the vehicle becomes
stuck in mud, dirt, or snow.
Stop the engine. Set the parking brake and shift the shift lever
in “P”.
Remove the mud, snow, or sand from around the stuck tire.
Place wood, stones or some other material to help provide
traction under the tires.
Restart the engine.
Shift the shift lever to the “D” or “R” position and carefully apply
the accelerator to free the vehicle.
Turn off TRAC/VSC if these functions are hampering your attempts
to free the vehicle. (→P. 1 8 6 )
STEP1
STEP2
STEP3
STEP4
STEP5
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Vehicle specifications6
539
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6-1. Specifications................. 540Maintenance data (fuel, oil level, etc.) .............. 540
Fuel information ..................... 553
Tire information...................... 556
6-2. Customization................ 569 Customizable features ........ 569
6-3. Initialization ................... 575 Items to initialize ..................... 575
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550
6-1. Specifications
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June 19, 2008 12:54 pm
Tires and wheels
Ty p e A
Ti r e s i z e245/40R18 93Y, P245/40R18 93V,
245/40ZR18, T155/70D17 110M (spare)
Front and rear tire inflation
pressure
(Recommended cold tire inflation
pressure)
Driving under normal conditions 33 psi (230 kPa, 2.3 kgf/cm2 or bar)
Driving at high speeds above 100 mph (160
km/h) (in countries where such speeds are per-
mitted by law) Add 9 psi (60 kPa, 0.6 kgf/cm
2 or bar) to the
front tires and rear tires. Never exceed the
maximum cold tire inflation pressure indicated
on the tire sidewall.
Spare tire inflation pressure
(Recommended cold tire inflation
pressure)
60 psi (420 kPa, 4.2 kgf/cm2 or bar)
Wheel size18 × 8 J, 17 × 4T (spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
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6-1. Specifications
6
Vehicle specifications
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Type B
Ti r e s i z e225/50R17 94W, P225/50R17 93V,
T155/70D17 110M (spare)
Front and rear tire inflation
pressure
(Recommended cold tire inflation
pressure)
Driving under normal conditions33 psi (230 kPa, 2.3 kgf/cm2 or bar)
Driving at high speeds above 100 mph (160
km/h) (in countries where such speeds are per-
mitted by law) Add 7 psi (50 kPa, 0.5 kgf/cm
2 or bar) to the
front tires and rear tires. Never exceed the
maximum cold tire inflation pressure indicated
on the tire sidewall.
Spare tire inflation pressure
(Recommended cold tire inflation
pressure)
60 psi (420 kPa, 4.2 kgf/cm2 or bar)
Wheel size17 × 7 1 /2 J, 17 × 4T (spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
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556
6-1. Specifications
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June 19, 2008 12:54 pm
Tire information
Ty p i c a l t i r e s y m b o l s
Tire size(→ P. 559)
DOT and Tire Identification Number (TIN) (→ P. 5 5 8 )
Location of treadwear indicators (→ P. 421)
Run-flat tire (RFT) or standard tire (→ P. 522)
This vehicle can be equipped with either run-flat tires (RFT) or standard
tires. A “RFT” or “DSST” mark is molded on the sidewall of the run-flat tire.
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6-1. Specifications
6
Vehicle specifications
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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 filled in the tire. A
tube type tire has a tube inside the tire and the tube maintains the air pres-
sure.
Load limit at maximum cold tire inflation pressure ( →P. 562)
Maximum cold tire inflation pressure ( →P. 562)
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 tire or all season tire (→ P. 4 2 6 )
An all season tire has “M+S” on the sidewall. 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 into its sidewall. This tire is designed for temporary emer-
gency use only.
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6-1. Specifications
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Typical DOT and tire iden tification number (TIN)
DOT symbol
*
Tire Identification Number (TIN)
Tire manufacturer’s identifica-
tion mark
Tire size code
Manufacturer’s optional tire
type code (3 or 4 letters)
Manufacturing week
Manufacturing year
*: The DOT symbol certifies thatthe tire conforms to applicable
Federal Motor Vehicle Safety
Standards.
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6-1. Specifications
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Vehicle specifications
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Tire size■ Typical tire si ze information
The illustration indicates typical
tire size.
Ti r e u s e
(P = Passenger car,
T = Temporary use)
Section width (millimeters)
Aspect ratio
(tire height to section width)
Tire construction code
(R = Radial, D = Diagonal)
Wheel diameter (inches)
Load index (2 or 3 digits)
Speed symbol
(alphabet with one letter)
■ Tire dimensions
Section width
Tire height
Wheel diameter
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