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Service bulletin 2021FA02

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 id10190572
Published by NHTSA2021-04-26
Manufacturer's number2021FA02
Manufacturer's date2021-03-05
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA's summary

Announces field action related to a campaign initiated by Volvo bus for B500 model 9700 transmissions to recalibrate the TCM and inspect C1 drive hub and replace in specific vehicles

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

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.