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Damage
Periodically inspect the tire treads and
sidewalls for damage (such as bulges
in the tread or sidewalls, cracks in the
tread groove and separation in the
tread or sidewall). If damage is
observed or suspected have the tire
inspected by a tire professional. Tires
can be damaged during off-road use,
so inspection after off-road use is also
recommended.
Age
WARNING
Tires degrade over time
depending on many factors such
as weather, storage conditions, and
conditions of use (load, speed,
inflation pressure, etc.) the tires
experience throughout their lives.
In general, tires should be replaced
after six years regardless of tread
wear. However, heat caused by hot
climates or frequent high loading
conditions can accelerate the aging
process and may require tires to be
replaced more frequently.
You should replace your spare tire
when you replace the road tires or
after six years due to aging even if it
has not been used.
U.S. DOT Tire Identification Number
Both U.S. and Canada Federal
regulations require tire manufacturers
to place standardized information on
the sidewall of all tires. This
information identifies and describes
the fundamental characteristics of the
tire and also provides a U.S. DOT Tire
Identification Number for safety
standard certification and in case of a
recall.
This begins with the letters DOT and
indicates that the tire meets all federal
standards. The next two numbers or
letters are the plant code designating
where it was manufactured, the next
two are the tire size code and the last
four numbers represent the week and
year the tire was built. For example,
the numbers 317 mean the 31st week
of 1997. After 2000 the numbers go
to four digits. For example, 2501
means the 25th week of 2001. The
numbers in between are identification
codes used for traceability. This
information is used to contact
customers if a tire defect requires a
recall.
Tire Replacement Requirements
Your vehicle is equipped with tires
designed to provide a safe ride and
handling capability.
292
MKZ (CC9)
Wheels and Tires
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