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Service bulletin SA-044-22

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10215254
Published by NHTSA2022-07-06
Manufacturer's numberSA-044-22
Manufacturer's date2022-06-29
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS; ENGINE AND ENGINE COOLING

NHTSA's 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

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine, Cooling system

Vehicles listed
MAZDA CX-52017, 2018, 2019, 2020, 2021, 2022

Listing a model year does not mean every vehicle of it is concerned: the document says which.