Clunk, Bang, Buzz Noise During First Forward Movement After Sitting – 2004-2015 Mazda

MULTI-MODEL – CLUNK / BANG / BUZZ NOISE DURING FIRST FORWARD MOVEMENT AFTER SITTING

APPLICABLE MODEL(S)/VINS

2013-2016 CX-5	2011-2014 Mazda2	2007-2016 Mazda3	2016 CX-3
2006-2015 Mazda5	2007-2012 CX-7	2006-2016 Miata / MX-5
2004-2011 RX-8	2007-2016 CX-9	2014-2016 Mazda6

 

Slight clunk/bang/buzz noise or jolt from the front of the vehicle.

 

This concern will most likely occur during the vehicles first forward movement after starting the engine.

This is a normal operating noise of the Anti-Lock Brake System (ABS).

Do not attempt any repairs.

 

If you encounter a customer complaint for this concern, explain that the noise comes from the ABS/TCS/DSC “Malfunction Detection Function” initial check and that there is no problem.

This initial check is a necessary function to ensure the normal operation of the ABS/TCS/DSC system.

It occurs when the vehicles first moves forward under the following conditions.

 

NOTE: Some customers may describe that the noise does not occur all the time. It does occur all the time, but the sound is more likely to be heard on a slow start and not on a quick start (quick acceleration) when engine noise is louder.

Condition	With DSC	Without DSC
The brake pedal is released (normal take-off)	The initial check start at 4 mph (6 km/h) or more.	The initial check start at 3 mph (4 km/h) or more.
The brake pedal is pressed (running on a downhill or creeping along on A/T vehicles)	The initial check start at 9 mph (15 km/h) or more.	The initial check start at 6 mph (10 km/h) or more.

 

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