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Service bulletin TP-9646

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 id10033270
Published by NHTSA2010-08-02
Manufacturer's numberTP-9646
Manufacturer's date2009-12-01
NHTSA componentSUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY; POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT

NHTSA's summary

MERITOR: DRIVER CONTROLLED MAIN DIFFERENTIAL LOCK (DCDL). ALL MERITOR SINGLE REAR DRIVE AXLES WITH DCDL OPTION. NO MODEL OR MODEL YEARS LISTED. *PE

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

Suspension, Transmission and driveline, Differential

Vehicles listed
MERITOR MERITOR

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