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Service bulletin 263

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 id620325
Published by NHTSA2001-08-02
Manufacturer's number263
Manufacturer's date2001-04-01
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA's summary

CONCERNS WITH TRANSMISSION OVERHEATING COMPLAINTS RECEIVED FOR FS65 SCHOOL BUS VEHICLES EQUIPPED WITH ALLISON AT SERIES TRANSMISSION WITH ELECTRONIC MODULATORS. *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
FREIGHTLINER SCHOOL BUS

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