Mazda CX-9 2017–2020 — technical service bulletin
Bulletin 15-003-20-3737a · NHTSA communication 10182100 · issued Oct 2, 2020
Technical service bulletin
communication type
Forward Collision Avoidance
component
2017–2020
model years
9
vehicle entries
Official summary
Some vehicles may exhibit that the SBS/SCBS warning light (amber) turns ON right after the engine is started with DTC U0420:68 [FSC] (Error signal received from electric power steering (EPS) control module) stored in memory. For Mazda6 and CX-5, the following error messages may appear in the instrument cluster. ï · Front camera sensor system malfunction ï · Forward Smart City Brake Support Malfunction ï · Driver attention alert system malfunction. This may be caused by the battery voltage falling and the EPS control module failing the initial learning for the steering center position
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.