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Service bulletin SIB120721

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 id10224197
Published by NHTSA2022-10-17
Manufacturer's numberSIB120721
Manufacturer's date2022-08-01
NHTSA componentBACK OVER PREVENTION; ELECTRICAL SYSTEM; AIR BAGS

NHTSA's summary

Check Control message (CCM) indicates: (ID 213): Stop, exercising due care. Voltage supply The Service Engine Soon light is on with the following DME Fault Code: 21B209 - Starter alternator / belt for 48V system (OSA_RIEMEN_RISS): Belt between Combustion engine and starter generator torn. And/or one or more of the following other issues are also occurring: Noise in the area of the belt drive. Odor from the engine compartment. Smoke formation in the area of the belt drive. Drive belt damaged or prematurely worn. Torn drive belt.

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

Air bags, Driver assistance, Electrical system, Backup camera

Vehicles listed
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 3 SERIES
BMW 530
BMW 530I
BMW 540
BMW 6 SERIES
BMW 7 SERIES
BMW M ROADSTER
BMW M3
BMW M5
BMW X5

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