Service bulletins for the 2021 BMW M4
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.
72 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Software are shown. Show all
| B611621 | 2021-12-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. The "energy management" Check control message (ID code 415) is falsely displayed when entering the vehicle. |
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| SIB 62 03 21 | 2021-10-25. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING. When the vehicle is operated in Sport Mode, the engine speed is no longer displayed in the BMW Head-Up Display (HUD). |
| B651121 | 2021-08-09. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT ADAPTIVE/MOBILITY. SiriusXM satellite radio is not working and does not display a channel list. |
| B610421 | 2021-08-09. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT; ENGINE. The customer may complain of a check control message stating "Safe share detected" (CCM-ID 953). Check control message can be verified by checking key reader information or performing the Check control message history service function. |
| B120321 | 2021-08-09. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT ADAPTIVE/MOBILITY. Due to an software error, the adaptation values of the actuator contiguous wheel slip limitation (ARB) may be lost. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.