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Service bulletin P89 Tone Ring

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 id10199559
Published by NHTSA2021-08-02
Manufacturer's numberP89 Tone Ring
Manufacturer's date2016-04-18
NHTSA componentEQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; EQUIPMENT; SERVICE BRAKES, AIR:DISC

NHTSA's summary

P89 Tone Ring inspection procedure

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Brakes, Electrical system, Equipment and accessories

Vehicles listed
SAF-HOLLAND ADL

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