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Service bulletin 221

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10037520
Published by NHTSA2011-05-25
Manufacturer's number221
Manufacturer's date2011-04-01
NHTSA componentTIRES:SIDEWALL

NHTSA's summary

COOPER TIRE: ON SOME DISCOVERER TIRES THE GRADING WAS NOT IMPRINTED ON THE TIRE. *RM

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Tires

Vehicles listed
COOPER COOPER DISCOVERER A/T
COOPER COOPER DISCOVERER A/T (MODIFIED TREAD)

Listing a model year does not mean every vehicle of it is concerned: the document says which.