Mazda CX-30 2021–2023 — technical service bulletin
Bulletin SA-027-23a · NHTSA communication 10238692 · issued Jun 13, 2023
Technical service bulletin
communication type
Equipment Adaptive/mobility
component
2021–2023
model years
15
vehicle entries
Official summary
In-vehicle network malfunction and master warning light on. Dtc u3000:04 stored (does not apply to 09-001/23)
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.