SMART fortwo coupe Operator's Manual page 201

Tires and wheels
Load identification
1
Load identification
i
For illustration purposes only. Actual data
on tires are specific to each vehicle and may
vary from data shown in above illustration.
In addition to the tire load rating, special load
identification 1 may be molded into the tire
sidewall following the letter designating the
tire speed rating ( page 196).
200
>> Operation
No specification given: absence of any text
(like in above example) indicates a standard
load (SL) tire.
XL (Extra Load): designates an extra load
(or reinforced) tire.
Light Load: designates a light load tire.
C, D, E: designates load range associated with
the maximum load a tire can carry at a speci
fied pressure.
DOT, Tire Identification Number (TIN)
U.S. tire regulations require each new tire
manufacturer or tire retreader to mold a TIN
into or onto a sidewall of each tire produced.
The TIN is a unique identifier which facilitates
efforts by tire manufactures to notify
purchasers in recall situations or other
safety matters concerning tires and gives
purchasers the means to easily identify such
tires.
The TIN is comprised of "Manufacturer's
identification mark", "Tire size", "Tire type
code", and "Date of manufacture".
1
DOT
2 Manufacturer's identification mark
3
Tire size
4 Tire type code (at the option of the tire
manufacturer)
5 Date of manufacture
i
For illustration purposes only. Actual data
on tires are specific to each vehicle and may
vary from data shown in above illustration.