Mazda CX-5 2018–2019 — technical service bulletin
Bulletin SA-005-19 · NHTSA communication 10154456 · issued Feb 1, 2019
Technical service bulletin
communication type
Engine
component
2018–2019
model years
4
vehicle entries
Official summary
A tapping/rattling noise may be noticed from the valve train area. This condition usually occurs after the engine has been turned off at normal operating temperature and then not warmed up to full operating temperature during the next series of cold starts. This operating condition can occur, for example, on new vehicles which have been delivered to Mazda dealers (due to loading and unloading from transport trucks or customers moving their vehicles in and out of their garages to wash the vehicle, etc.)
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.