Mazda CX-3 2016–2019 — technical service bulletin
Bulletin SA-016-18 · NHTSA communication 10134944 · issued Mar 26, 2018
Technical service bulletin
communication type
Electrical System
component
2016–2019
model years
10
vehicle entries
Official summary
If the MAZDA CONNECT Connectivity Master Unit (CMU) is replaced due to failure, the replacement CMU may have a navigation system software error. To resolve this concern, after the installation of the new CMU, check the software version.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.