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: Backup camera are shown. Show all
| B090321 | 2022-06-21. Service bulletin. BACK OVER PREVENTION:SOFTWARE. In some rare cases a customer vehicle might be excluded from one or more Remote Software Upgrade(RSU) campaigns. This SIB gives an overview how to identify these vehicles and how to proceed in case of a customer complaint. |
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| B511021 | 2021-07-19. Service bulletin. BACK OVER PREVENTION; STRUCTURE:BODY:TRUNK LID. SERVICE ACTION: CHECK BADGE ON TAILGATE, REPLACE IF NECESSARY . The "BMW" trunklid emblem (arrow) which contains the rear-view camera may not have been correctly fastened during vehicle production. It is possible that the emblem & camera may become detached from the vehicle, such as when going through an automated car wash. |
| B511021 | 2021-07-06. Service bulletin. BACK OVER PREVENTION. SERVICE ACTION: CHECK BADGE ON TAILGATE, REPLACE IF NECESSARY . The "BMW" trunklid emblem (arrow) which contains the rear-view camera may not have been correctly fastened during vehicle production. It is possible that the emblem & camera may become detached from the vehicle, such as when going through an automated car wash. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.