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TIRE LABELING
Federal law requires tire manufacturers to
place standardized information on the
sidewall of all tires. This information iden-
tifies and describes the fundamental
characteristics of the tire and also pro-
vides the tire identification number (TIN)
for safety standard certification. The TIN
can be used to identify the tire in case of a
recall.
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1
Tire size (example: P215/65R15 95H)
1. P: The “P” indicates the tire is de-
signed for passenger vehicles (notall
tires have this information).
2. Three-digit number (215): This num-
ber gives the width in millimeters of
the tire from sidewall edge to side-
wall edge.
3. Two-digit number (65): This number,
known as the aspect ratio, gives the
tire’s ratio of height to width.
4. R: The “R” stands for radial.
5. Two-digit number (15): This number
is the wheel orrim diameter in inches.
6. Two- or three-digit number (95): This
number is the tire’s load index. It is a
measurement of how much weight
each tire can support. You may not
find this information on all tires be-
cause it is not required by law.
7. H: Tire speed rating. You should not
drive the vehicle faster than the tire
speed rating.
Example
WDI0394
Example
WDI0395
8-38 Maintenance and do-it-yourself
੬ REVIEW COPY—
2010 Armada (wzw)
Owners Manual (owners)—USA_English (nna)
02/18/09—debbie
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