Mazda CX-5 2017–2022 — technical service bulletin
Bulletin SA-044-22 · NHTSA communication 10215254 · issued Jun 29, 2022
Technical service bulletin
communication type
Engine and Engine Cooling
component
2017–2022
model years
6
vehicle entries
Official summary
Some customers may complain about an unusual thumping / rattling noise coming from the engine compartment. The noise is most pronounced under the following conditions: - Engine at idle - Transmission in drive - Foot on the brake pedal - A/C OFF - Audio OFF The noise may be caused by loose fitting heater hoses vibrating the heater hose bracket protector. Page
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.