Mazda CX-90 Plug-In Hybrid 2024 — technical service bulletin
Bulletin 30-002-26 · NHTSA communication 11035601 · issued Jul 17, 2026
Technical service bulletin
communication type
Unknown OR Other
component
2024
model years
1
vehicle entries
Official summary
DESCRIPTION Some customers may experience ATF seepage from the High-Voltage (HV) motor terminal area. If ATF seepage is confirmed at this location, one or more of the following conditions may occur: ATF is leaking from the HV cable. ATF is leaking from the inverter connection. This is caused by through-hole porosity generated during manufacturing of the intermediate terminal block (busbar), allowing oil to seep from the component. To eliminate this concern, an Impregnation treatment (a sealing process in which resin, oil, or other liquids are infused into minute internal voids in the material,
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.