BMW X1 2016–2017 — technical service bulletin
Bulletin B520516 · NHTSA communication 10147026 · issued Aug 1, 2016
Technical service bulletin
communication type
Seats
component
2016–2017
model years
4
vehicle entries
Official summary
HEATED SEAT TEMPERATURES INCORRECT. Seat heater output is incorrect - too high or too low. Target temperatures: Level 1 = 95F after 20 min Level 2 = 99.5F after 20 min Level 3 = 104F after 20 min Insufficient encoding of seat heating control unit.
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.