PIT4261G

Bulletin No.: PIT4261G
Published date: 06/16/2021
Preliminary Information
PIT4261G Tire Sidewall Irregularities
Models
Brand:
All
Model:
All
Model Years:
2010 - 2021
VIN:
from
All
Engine:
to
All
All
Transmissions:
All
Supersession Statement
This PI was superseded to update the models and years. Please discard PIT4261F.
Condition / Concern
Slight sidewall indentations are a common characteristic of radial tire construction. These
indentations are more noticeable on larger size tires having a larger side wall height. Radial
tire body construction includes individual cords that run parallel to each other from bead to
bead (down the sidewall, across the tread and up the other sidewall). These cords will
overlap at points on the circumference of the tire. When the tire is mounted and inflated, it
is free to naturally expand. The overlapped areas may create slight indentations,
undulations, or protrusions since the stretching capacity of the overlapped area is slightly
different than the rest of tire sidewall area.
The following two photo's show examples of tires with a sidewall indentation.
Recommendations / Instructions
This is a visual condition that will not affect durability, reliability or performance of the tires.
Tire replacement to address this condition is not recommended and will lead to customer
dissatisfaction as the replacement tires will likely have the same or similar condition.
Note: Indentations are not to be confused with sidewall bulges. An "outward" sidewall bulge
indicates a spread or broken cord(s). Tires with an "outward" sidewall bulge should be
replaced.
Customer Information
Please communicate to the customer that slight sidewall indentations are a common characteristic of radial tire
construction and will not impact the designed performance or reliability of the vehicle. Please share this
information with the customer, including a copy of this message.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is
resolved without completing every step, the remaining steps do not need to be performed.
Additional SI Keywords
alignment blister front pressure rear rotate suspension wear wheel
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