Technical Service Bulletin B520820 — 2020 BMW M850I
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | B520820 |
| Manufacturer | |
| Vehicle | 2020 BMW M850I |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin Summary
CC MESSAGE "FAILURE OF HEAD RESTRAINT ADJUSTMENT ON PASSENGER'S SIDE": Customer states he/she has received a sporadic Check Control message (CCM) "Failure of head restraint adjustment on passenger's side". This is CCM ID-2184. This message appears when the customer folds down the front passenger seat and drives off. The front passenger seat is unoccupied. The CCM (ID-2184)- Appears after 60 seconds States that the head restraint is faulty and that the customer could injure themselves Recommends visiting a workshop Software in the seat module.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.