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Service bulletin B520623

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10249022
Published by NHTSA2024-02-01
Manufacturer's numberB520623
Manufacturer's date2024-01-02
NHTSA componentSEATS

NHTSA's summary

It was discovered that an indentation or crack on the driver and/or passenger seat crossmember rear outer dome (circled ;viewed looking frontwards) can form. Note: The rear inner dome on both the driver and passenger seat crossmembers are not affected.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Seats

Vehicles listed
BMW X62023

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
B5205242024-09-01. Service bulletin. A rattling noise can be heard emanating from the area of the rear seat backrest of the second row ofseats. The noise does not occur when the rear seat backrest is folded down.
B5210192024-04-01. Service bulletin. The seat leather upholstery detaches from the front of the thigh support (aka knee bolster) of either front seat.
B5223192023-12-06. Service bulletin. Two areas of the third-row seat backrest that may cause a noise concern have been added.
B5223192023-11-01. Service bulletin. Second seat row blocking access to third seat row, program seat modules. Visible stitching on first row sport seat. Third seat row backrest Bowden cable routing and length change.
SIB5206232023-05-15. Service bulletin. BMW AG has issued a Delivery Stop (effective March 13, 2023) on certain Model Year 2023 BMW X6 SAC vehicles that were produced between March 1, 2023, and March 7, 2023. It was discovered that an indentation or crack on the driver and/or passenger seat crossmember rear outer dome (circled; viewed looking frontwards) can form.