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Service bulletin 211K2K00

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 id617637
Published by NHTSA2001-03-21
Manufacturer's number211K2K00
Manufacturer's date2000-10-01
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

NHTSA's summary

THIS SERVICE INFORMATION LETTER INTRODUCES THE RELEASE OF THE 2000 MOTOR HOME TRANSMISSION (2000 MH). THE NEW 2000 MH MODEL WILL BE MATED ONLY TO THE CUMMINS ISB ENGINE RATED AT 275 HP AND 600 FT-LBS. TO ACCOMMODATE THE ADDITIONAL INPUT TORQUE PRODUCED BY THIS SPECIFIC ENGINE RATING, THE TRANSMISSION CONTROL MODULE UTILIZES TORQUE MANAGEMENT DURING SHIFTS. DEVELOPMENT OF THIS TCM CALIBRATION HAS BEEN COMPLETED ONLY WITH SPECIFIC ENGINE AND CHASSIS COMBINATIONS. THEREFORE THE 2000 MH IS ONLY RELEASED IN AN APPROVED CHASSIS WITH THE CUMMINS ISB RATED AT 275 HP AND 600 (NET) FT-LBS OF TORQUE. *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, Transmission control module

Vehicles listed
ALLISON TRANSMISSION

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