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Service bulletin 2000C2A

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 id617638
Published by NHTSA2001-03-21
Manufacturer's number2000C2A
Manufacturer's date2000-09-01
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA's summary

ALLISON TRANSMISSION HAS DECIDED THAT SOME 1000 SERIES AND SOME 2400 SERIES TRANSMISSION MAY EXHIBIT A CONDITION IN WHICH THE PARK PAWL DOES NOT ENGAGE WHEN THE TRANSMISSION SHIFT SELECTOR IS MOVED TO THE PARK POSITION. *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, Automatic transmission

Vehicles listed
ALLISON TRANSMISSION

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