Mazda CX-9 2016–2020 — technical service bulletin
Bulletin 04-004-20-3679b · NHTSA communication 10173099 · issued Mar 19, 2020
Technical service bulletin
communication type
Equipment
component
2016–2020
model years
5
vehicle entries
Official summary
Some vehicles may exhibit a click or squeak noise from the front brakes under the following conditions: Click Noise: 1. When first moving forward or reverse from a stop OR 2. When first applying the brakes while moving forward at slow speeds. Squeak Noise: During light braking.
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.