BMW X7 2024–2026 — technical service bulletin
Bulletin B521923 · NHTSA communication 11032738 · issued May 4, 2026
Technical service bulletin
communication type
Seats
component
2024–2026
model years
3
vehicle entries
Official summary
In vehicles equipped with the second row 60% / 40% split seat, the flex cable assembly can come out of the seat rail mechanism (circled). This stops the forwards and backwards travel of the seat.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.