The reduced strength can allow the cast iron wear surface to separate from the hub, reducing the brake effectiveness of the vehicle.

Service Brakes, Hydraulic — Foundation Components — Disc — Rotor

Date Announced
DEC 13, 1999
Vehicles Affected
334,047
NHTSA Campaign #
99V340000
Summary
Vehicle description: Passenger and multi-purpose vehicles originally sold or currently registered in the states of Connecticut, Illinois, Indiana, Maine, Maryland, Massachusetts, Michigan, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, or Wisconsin, and the District of Columbia. The front disc brake rotors can experience severe corrosion if operated for an extensive period in the "salt belt." If the rotors are not replaced, the corrosion can eventually compromise the structural integrity of the stamped steel center hub section of the rotor.
Actions
Dealers will replace these rotors with rotors that are coated with a corrosion protection.
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