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June 17, 2021 Service bulletin

Some customers may complain about the following braking concerns when coming to a stop while following a...

Mazda technical service bulletin 04-003-21-3810 for 2019-2021 Mazda MAZDA3 and 2020-2021 Mazda CX-30.

Bulletin number
04-003-21-3810
Component
Equipment adaptive/mobility
Summary
Some customers may complain about the following braking concerns when coming to a stop while following a vehicle ahead using Mazda Radar Cruise Control with Stop and Go function (MRCC). Harder braking at slow speeds just before a complete stop. Before coming to a complete stop, the vehicle creeps towards the vehicle ahead and Depress Brake Pedal warning message may appear in the instrument cluster. This is caused by improper control software of the DSC HU/CM. To eliminate this concern, the control software of the DSC HU/CM has been modified.

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