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: Seats are shown. Show all
| B520121 | 2023-09-25. Service bulletin. SEATS. ?The front seat will not calibrate/initialize, and the stored faults cannot be deleted. |
|---|---|
| B520121 | 2021-08-09. Service bulletin. SEATS; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Front seat will not calibrate/initialize, and the stored faults cannot be deleted |
| B520121 | 2021-03-15. Service bulletin. SEATS. SEAT FAILS TO INITIALIZE DUE TO MISSING END STOP: Front seat will not calibrate/initialize. |
| B520720 | 2020-11-23. Service bulletin. SEATS. SEAT HEATING NOT ACTIVATED WHEN ENGINE IS STARTED USING REMOTE STARTING SYSTEM: When preheating/precooling the vehicle via the remote starting system (Remote Engine Start), the seat heating on the driver's side is not activated. |
| B520720 | 2020-11-16. Service bulletin. SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER. SEAT HEATING NOT ACTIVATED WHEN ENGINE IS STARTED USING REMOTE STARTING SYSTEM: When preheating/precooling the vehicle via the remote starting system (Remote Engine Start), the seat heating on the driver's side is not activated. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.