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Service bulletin 010102

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 id10000474
Published by NHTSA2003-02-28
Manufacturer's number010102
Manufacturer's date2002-11-01
NHTSA componentPOWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT

NHTSA's summary

INFORMATION ON PARTS AVAILABILITY FOR THE LOCKING REAR DIFFERENTIAL. *TT

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

Transmission and driveline, Differential

Vehicles listed
HUMMER H22003

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