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Service bulletin WAT-445-REV A

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 id10059077
Published by NHTSA2016-02-01
Manufacturer's numberWAT-445-REV A
Manufacturer's date2015-08-01
NHTSA componentPOWER TRAIN:MANUAL TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA's summary

ALLISON TRANSMISSION: ON CERTAIN TRANSMISSIONS, SOFTWARE AND CALIBRATION CHANGES WILL OCCUR, PERMITTING NEUTRAL AT STOP FUNCTION WHICH REDUCES FUEL CONSUMPTION AND IMPROVE COOLING DURING IDLE CONDITIONS AT STOP. MODEL 1000, 2000. *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

Transmission and driveline, Automatic transmission, Manual transmission

Vehicles listed
ALLISON 1000 SERIES TRANSMISSION
ALLISON 2000 SERIES TRANSMISSION

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