2015 Lexus GS450h tire size

GS450h_OM_OM30F70U_(U)
5838-1. Specifications
8
Vehicle specifications
Compact spare tire
Ti r e s i z eT155/70D17 110M, T145/70D18 107M
Tire inflation pressure
(Recommended cold tire
inflation pressure)
60 psi (420 kPa, 4.2 kgf/cm2 or bar)
Wheel size17  4T (T155/70D17), 18  4T (T145/70D18)
Wheel nut torque76 f t•lbf (103 N•m, 10.5 kgf•m)
Light bulbs
Light bulbsBulb No.WTy p e
Exterior
Discharge headlights*35A
Fog lights*19B
Front turn signal lights7444NA28 /8C
Rear turn signal lightsW21W21D
Back-up lightsW16W16D
Outer foot lightsW5W5D
Interior
Door courtesy lights5D
Vanity lights8D
Tr u n k l i g h t3.8D
A: D4S discharge bulbs
B: H16 halogen bulbs
C: Wedge base bulbs (amber) D: Wedge base bulbs (clear)
*: If equipped

587
GS450h_OM_OM30F70U_(U)8-1. Specifications
8
Vehicle specifications
Tire information
Full-size tire
Compact spare tire
Typical tire symbols

588
GS450h_OM_OM30F70U_(U)
8-1. Specifications
Tire size ( P. 590)
DOT and Tire Identification Number (TIN) ( P. 5 8 9 )
Location of treadwear indicators ( P. 443)
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 9 4 )
Maximum cold tire inflation pressure ( P. 5 9 4 )
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. 4 4 8 )
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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590
GS450h_OM_OM30F70U_(U)
8-1. Specifications
■Typical tire size information
The illustration indicates typical
tire size.Tire use
(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 digits or 3 digits)
Speed symbol
(alphabet with one letter)
■Tire dimensionsSection width
Tire height
Wheel diameter
Tire size
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GS450h_OM_OM30F70U_(U)
5958-1. Specifications
8
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 designated seating capac-
ity
Vehicle maximum load on
the tireThe load on an individual tire that is determined by
distributing 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
distributing to each axle its share of curb weight,
accessory weight, and normal occupant weight (dis-
tributed in accordance with Table 1
* below), and
dividing by two
We a t h e r s i d eThe 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 and that is
shaped to fit the rim
Bead separationA breakdown of the bond between components in
the bead
Bias ply tire
A 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 the plies in the tire
Cord separationThe parting of cords from adjacent rubber com-
pounds
CrackingAny parting within the tread, sidewall, or innerliner of
the tire extending to cord material
Tire related termMeaning

649Alphabetical index
GS450h_OM_OM30F70U_(U)
Talk switch*
Telephone switches*
Theft deterrent systemAlarm...........................................................83
Immobilizer system ............................... 81
Tire inflation pressure ......................... 582 Maintenance data ............................. 582
Tire inflation pressure display function ...................................................99
Warning light ...................................... 507
Warning message .............................. 531
Tire information ..................................... 587 Glossary ................................................ 594
Size ........................................................... 590
Tire identification number............. 589
Uniform Tire Quality Grading...............................................592
Tire pressure warning system ......... 445 Function ..................................................445
Initializing................................................445
Installing tire pressure warning valves and transmitters ................445
Registering ID codes ....................... 447
Tire pressure warning reset switch....................................................446
Warning light ...................................... 507
Warning message .................. 531, 532
Tires............................................................ 443 Chains..................................................... 320
Checking................................................443
If you have a flat tire ........................... 541
Inflation pressure ............................... 582
Information ........................................... 587 Replacing .................................................541
Rotating tires ........................................ 444
Size ...........................................................582
Snow tires .............................................. 322
Spare tire..................................................541
Tire inflation pressure display
function................................................... 99
Tire pressure warning system ..... 445
Warning light ....................................... 507
Warning message...............................531
Tools ...........................................................542
Top tether strap ....................................... 68
Total load capacity.................................190
Towing Dinghy towing ....................................... 192
Emergency towing ........................... 496
Towing eyelet ...................................... 499
Trailer towing.......................................... 191
TRAC (Traction Control)................. 283
Traction battery (hybrid battery) ....... 76
Traction motor (electric motor)......... 72
Transmission .......................................... 203 Driving mode select switch ..........280
Hybrid transmission ......................... 203
If the shift lever cannot be shifted from P ...................................556
S mode.................................................... 206
Paddle shift switches........................205
Trip information ........................................ 97
Trip meters................................................... 91
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

651Alphabetical index
GS450h_OM_OM30F70U_(U)
No-handed driving warning ........ 275
Open door ........................................... 520
Open moon roof ................................ 521
Open hood .......................................... 520
Open trunk ............................................ 521
Open window ...................................... 521
Pre-collision braking ....................... 290
Seat belt reminder ............................ 506
Warning lights .......................................... 87 ABS.......................................................... 504
AFS OFF indicator ........................... 505
Brake hold operated indicator ............................................. 505
Brake system.......................... 503, 506
Charging system............................... 504
Electric power steering.................. 504
Low fuel level ...................................... 506
Malfunction indicator lamp .......... 504
Master warning light........................ 506
Open door ........................................... 506
Parking brake indicator ................. 505
Pre-collision system......................... 505
Seat belt reminder light.................. 506
Slip indicator ........................................ 505
SRS ........................................................... 504
Tire pressure ....................................... 507
Warning messages ............................... 513
Warning reflector storage belt....... 374
Washer ..................................................... 223 Checking............................................... 438
Low washer fluid warning message .......................... 530
Preparing and checking before winter ..................................... 318
Switch....................................................... 223 Washing and waxing .......................... 408
Weight
Cargo capacity.................................... 190
Load limits .............................................. 190
Weight .................................................... 574
Welcome light illumination control ..................................................... 123
Wheels Replacing wheels .............................. 456
Size ...........................................................582
Window glasses...................................... 167
Window lock switch.............................. 167
Windows.................................................... 167 Power windows.................................... 167
Rear window defogger ..................360
Windshield wiper de-icer ................... 361
Windshield wipers ................................223 Position ..................................................... 321
Rain-sensing windshield wipers................................................... 223
Winter driving tips .................................318
Wireless remote control key............. 136 Battery-Saving Function .................. 129
Locking/Unlocking ............................136
Replacing the battery ......................460
WMA disc
*
XM® Satellite Radio*
X
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.