Tires
Vehicle care and maintenance 9-13
9
Recommended inflation pressure: the inflation pressure for optimum tire perfor- mance. Intended outboard sidewall: • The sidewall that contains a whitewall, bears white lettering or bears manufac- turer, brand, and/or model name moldingthat is higher or deeper than the same molding on the other sidewall of the tire, or• The outward facing sidewall of an asym-metrical tire that has a particular side that must always face outward when mounted on a vehicle.
Passenger car tire: a tire intended for use on passenger cars, multipurpose passen- ger vehicles, and trucks, that have a grossvehicle weight rating (GVWR) of 10,000 pounds or less. Light truck (LT) tire: a tire designated by its manufacturer as primarily intended for use on lightweight trucks or multipurpose passenger vehicles. Tread: portion of a tire that comes into contact with the road. Tread rib: a tread section running circum- ferentially around a tire. Tread separation: pulling away of the tread from the tire carcass. Carcass: the tire structure, except tread and sidewall rubber which, when inflated, bears the load.
Sidewall: portion of a tire between the tread and bead. Section width: the li
near distance between
the exteriors of the sidewalls of aninflated tire, excluding elevations due to labeling, decoration, or protective bands. 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. Ply: a layer of rubber-coated parallel cords. Cord: the strands forming the plies in the tire. Rim: a metal support for a tire or a tire and tube assembly upon which the tire beads are seated. Rim diameter: nominal diameter of the bead seat. Groove: the space between two adjacent tread ribs.
EXAMPLE: P215/65R15Tire Markings Size Designation P
Passenger car tire size based on U.S.A. design standards
215
Section width in millimeters (mm.)
65
Aspect ratio in percent (%) Ratio of section height to section width of tire.
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Tires 9-14 Vehicle care and maintenance
9
EXAMPLE: 95H
Maximum load indicates the maxi- mum load this tire is designed tocarry.
R
Construction code •“R” means radial construc- tion. •“D” means diagonal or biasconstruction.
15 Rim diameter in inches (in)
NOTE
European/Japanese metric tire sizing is based on European/Jap- anese design standards. Tiresdesigned to these standards have the tire size molded into the sidewall beginning with the sec-tion width. The letter “P” is absent from this tire size desig- nation. Example: 215/65R1596H.
LT (Light Truck) -metric tire sizing is based on U.S.A. design standards. The size designationfor LT-metric tires is the same as for P-metric tires except for the letters “LT” that are molded intothe sidewall preceding the size designation. Example: LT235/85R16.Temporary spare tires are highpressure compact sparesdesigned for temporary emer- gency use only. Tires designed to this standard have the letter“T” molded into the sidewall preceding the size designation. Example: T145/80D18 103M.
Service Description 95
Load index A numerical code associ-ated with the maximum load a tire can carry.
NOTE
H
Speed symbol A symbol indicating the range of speeds at which a tire can carry a load corre-sponding to its load index under certain operating con- ditions.The maximum speed corre- sponding to the speed sym- bol should only be achievedunder specified operating conditions. (i.e. tire pressure, vehicle loading, road condi-tions and posted speed lim- its)
Maximum Load
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Vehicle dimensions
Specifications 11-3
11
N01148100560
The tire and loading information placard is located on the driver’s door sill.
Ty p e 1 Ty p e 2
N01148200213
The certification label (A) is located on the driver’s door sill.
N01147500352
* - Front of the vehicleTire and loading information placard
Certification label
Vehicle dimensions Overall length 177.0 in (4,495 mm)Overall width 71.3 in (1,810 mm) Overall height 58.3 in (1,480 mm)Wheel base 104.3 in (2,650 mm)
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