Mazda MX-5 2016–2021 — technical service bulletin
Bulletin 08-001-21-3790 · NHTSA communication 10189817 · issued Mar 8, 2021
Technical service bulletin
communication type
Seat Belts
component
2016–2021
model years
6
vehicle entries
Official summary
Some vehicles may experience a seat belt that retracts slowly. This is caused by the seat belt, seat belt guide and seat belt anchor (A) accumulating dust and dirt from hands and/or from the outside when driving with the top down. An increase in friction makes the seat belt retraction difficult. Keeping the seat belts clean will prevent this from happening.
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.