SA-024-22

BULLETIN NOTES
APPLICABLE MODEL(S)/VINS
2019-2022 Mazda3
DESCRIPTION
Some customers may experience an infotainment sub-woofer rattle noise. Follow the repair procedure to help determine
the cause.
REPAIR PROCEDURE
1. Verify the customer concern.
2. Document the following:
• Infotainment Source
Radio, Bluetooth, Apple Carplay / Android Auto......etc.
• If song is playing,
Artist?
Name of song?
• Infotainment volume level?
If volume is lowered, does rattle noise disappear?
• Infotainment bass level?
If bass is lowered, does rattle noise disappear?
• Vehicle parked or driving?
If driving, document vehicle speed, street or highway, concrete or asphalt?
• If possible, record a video of the rattle noise.
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3. Apply paint marks (C) to speaker bolts (A) and sub-woofer (B) as shown below:
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A: Bolts
B: Sub-woofer
C: Paint Mark (green paint marks
are shown as an example)
4. Set torque wrench to 7.1 in-lbs.
5. Turn torque wrench clockwise and document if clicker engages or bolt moves.
• If clicker engages and bolt does not move, the bolt torque is good.
• If the bolt paint mark moves clockwise, the bolt is loose.
6. Contact Hotline and provide inspection results.
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