Mazda CX-9 2016–2017 — technical service bulletin
Bulletin SA398 · NHTSA communication 10185818 · issued Feb 8, 2017
Technical service bulletin
communication type
Back Over Prevention
component
2016–2017
model years
2
vehicle entries
Official summary
HVAC Humidity Sensor change. A new type of HVAC humidity sensor has been added to some models with sport Trim. This new sensor is mounted on the inside of the windshield near the rear view mirror.
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.