Mazda CX-5 2017–2018 — technical service bulletin
Bulletin 09-014-19-3581 · NHTSA communication 10154532 · issued Mar 15, 2019
Technical service bulletin
communication type
Exterior Lighting
component
2017–2018
model years
2
vehicle entries
Official summary
Some customers may complain of foggy rear combination lights (as shown below) after a car wash or heavy rain. This concern may be caused by water entering into the rear combination lights through the ventilation tubes. To eliminate this from occurring, the ventilation tubes have been changed to a ventilation cap design.
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.