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Service bulletin 4322

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 id620150
Published by NHTSA2001-07-19
Manufacturer's number4322
Manufacturer's date2001-02-05
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

NHTSA's summary

INFORMATION ON THE NEW TRANSMISSION CONTROL MODULES (TCMS) INCORPORATED AS AN IMPROVED PROCESSOR INTRODUCED INTO MY 01 VEHICLES. *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
VOLVO VOLVO2001

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