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Service bulletin 201K2K00A

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 id10000779
Published by NHTSA2003-03-31
Manufacturer's number201K2K00A
Manufacturer's date2002-12-01
NHTSA componentPOWER TRAIN

NHTSA's summary

EXHAUST BACKFILL SPRING COLOR CODE. *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

Vehicles listed
ALLISON 1000 SERIES TRANSMISSION
ALLISON 2000 SERIES TRANSMISSION
ALLISON 2400 SERIES TRANSMISSION

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