December 5, 2018 Service bulletin

Some customers may complain about improper operation of the MAZDA CONNECT system when streaming music with...

Mazda technical service bulletin MT-002-18 for 2014-2018 Mazda MAZDA3, 2016-2019 Mazda CX-5 and 2016-2018 Mazda MAZDA6 and others.

Bulletin number: MT-002-18
Component: Equipment
Summary: Some customers may complain about improper operation of the MAZDA CONNECT system when streaming music with audio source aha/Pandora/Stitcher/Bluetooth® and the same device is also connected to the USB port for charging. The concerns may include: Blank Screen and/or No Audio Sound, Phone will not charge.Blank Screen and/or No Audio Sound These concerns may be caused by:The MAZDA CONNECT system has reached its capacity limits when streaming music with audio source aha/Pandora/Stitcher/Bluetooth® and also connected to the USB port.The MAZDA CONNECT system has reached its capacity limits when the customer's USB device capacity exceeds 16 GB (e.g. 64 GB iPhone X). The MAZDA CONNECT system USB port capacity is 16 GB (FAT32).Mazda recommends not to connect any devices to the USB port when streaming music with audio source aha/Pandora/Stitcher/Bluetooth®. When streaming music with audio source aha/Pandora/Stitcher/Bluetooth® (without USB connection), the Connectivity Master Unit (CMU) is able to process Bluetooth® digital data (A) and output audio sound and display Bluetooth® audio information. If the same device is connected to the USB port for charging, the CMU processes both Bluetooth® digital data (A) and USB digital data (B) from the same device at the same time. In this case, CMU resources may be exceeded, causing a Blank Screen and/or No Audio Sound.

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