Mazda TSB #SA-034-22

2019 Mazda MAZDA3

TSB Document:

Affected Component: ELECTRICAL SYSTEM

Summary
When the Telematics Control Unit (TCU) replacement is necessary due to a failure, use MDARS to activate the new TCU after replacement. Use the information in this service alert to initialize the new TCU until the procedure on MGSS is updated.

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Date Published
MAY 20, 2022
NHTSA TSB #
10213148
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