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Service bulletins for the 2021 BMW M235i

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.

90 on file from NHTSA, as of 2026-10-19.

By type

By component

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
B6406202021-02-01. Service bulletin. STRUCTURE:INTERIOR PANELS:DASHBOARD; ELECTRICAL SYSTEM; EQUIPMENT. ?FIZZING / GURGLING NOISES FROM CENTER VENT IN DASHBOARD: The Air Conditioning system is cooling the vehicle interior. The customer hears a fizzing / gurgling noise coming from the center ventilation grille in the vehicle interior.
B6203202021-02-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. MALFUNCTION INDICATOR LAMP (MIL) IS ILLUMINATED WITH FAULT MEMORY CDC152: The malfunction indicator lamp (MIL) is illuminated in the instrument cluster. The vehicles has no operating failures; only the MIL is illuminated.
B6111202021-02-01. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; STRUCTURE:BODY:DOOR; EQUIPMENT ADAPTIVE/MOBILITY. WHEN LOCKING VEHICLE, DOORS ARE LOCKED BUT VEHICLE IS NOT SECURED: The customer complains that when locking the vehicle from the outside using the remote control: The doors lock The alarm system is not activated The side mirrors (when the function is activated) do not fold in.
B0901202021-02-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. BMW REMOTE SOFTWARE UPGRADE IS NOT OFFERED FOR INSTALLATION: The customer complaints that the BMW Remote Software Upgrade (RSU) is not possible in their vehicle, though the Remote Software Upgrade menu is available in the vehicle and a download was performed by the vehicle or the BMW Connected App.
B6111202020-12-21. Service bulletin. LATCHES/LOCKS/LINKAGES; ELECTRICAL SYSTEM. WHEN LOCKING VEHICLE, DOORS ARE LOCKED BUT VEHICLE IS NOT SECURED: The customer complains that when locking the vehicle from the outside using the remote control: The doors lock. The alarm system is not activated. The side mirrors (when the function is activated) do not fold in.
B6202202020-10-19. Service bulletin. ELECTRICAL SYSTEM. SERVICE ACTION - PROGRAM THE INSTRUMENT CLUSTER: The Instrument Cluster needle illumination can occasionally fail in the event of a long-term power overload. The brightness of the needle illumination is automatically regulated by a sensor in day mode and cannot be controlled by the driver using the knurled wheel. As a redundancy, the digital display can be displayed in the center of the instrument cluster by pressing the button on the turn indicator lever. Alternatively, the digital speed can be seen in the Head-Up Display (HUD) if equipped. Other displays (such as Check Control messages) are not affected by the fault. Software error in the Instrument Cluster (aka KOMBI).

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.