Mazda CX-3 2016–2017 — technical service bulletin
Bulletin 07-004-17-3332a · NHTSA communication 10120389 · issued Sep 12, 2017
Technical service bulletin
communication type
Equipment Adaptive/mobility
component
2016–2017
model years
2
vehicle entries
Official summary
Some customers may complain about warm air from the climate control vents. This may be caused by improper brazing (A) of the evaporator (B), causing a refrigerant leak from the joint between the tubes (C) and the header (D).
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.