User Guide

Tire Size, Load Range, Load Index, and Speed Symbol:
DOT Symbol and Tire Identification Number: “DOT” symbol
constitutes a certication that the tire conforms to applica-
ble U.S. Department of Transportation motor vehicle safety
standards (for tires). Following the “DOT” symbol is the tire
identication number, also known as the DOT serial number or
code. The DOT TIN is commonly known as the “DOT number”
and is marked in full on at least one sidewall near the bead.
Please refer to the infographic below.
The DOT symbol and tire identication number can be found
on at least one sidewall near the wheel. The other sidewall
may have a partial serial code that excludes (e) and (f) above.
Maximum Load and Inflation: The maximum load and max-
imum inflation pressure is marked on each sidewall in metric
and English units. For example:
MAX LOAD 685 kg (1510 lbs) AT 240 kPa (35 psi) MAX PRESS
Note: The load and inflation values marked on the tire side-
wall are maximum permissible values for the tire only. Never
assume that these values are the actual recommended load
capacity or tire pressure values for your vehicle. See “Tire
Inflation Pressure,” “Tips for Safe Tire Inflation,” and “Tips for
Safe Loading” in this manual.
Ply Composition and Materials: The actual number of plies in
the sidewall and tread area and the generic name(s) of their cord
material(s) are marked on at least one side-wall. For example:
Examples
Tire
Size
Load
Index
Speed
Symbol
Load
Range
Figure 3 P215/65R15 95 H --
Figure 4 LT235/85R16 114/111 Q D
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Note that the last portion of the TIN is unchanged—identifying the tire
manufacture date using the same format for week and year. (For tires
made before 7/2000, there is one digit for the year.)
025 = 2nd week of 1995 (possibly 1985 or 1975)
2608 = 26th week of 2008
3314 = 33rd week of 2014
1525 = 15th week of 2025
Date of Manufacture
Examples
Since
7/2/2000
DOT XX XX XXXX XXXX
DOT XXX XXXXXX XXXX
By
4/13/2025
Plant
Code
Plant
Code
Manufacturer’s
Code
Either format may be used before April 13, 2025 (DOT date 1525).
Size
Code
Date of Manufacture
Week Year
Week Year
Date of Manufacture
Descriptive Code
(Optional)
Up to 4 characters
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