Mazda CX-90 2024 — technical service bulletin
Bulletin 01-009-23 · NHTSA communication 10240368 · issued Jul 12, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2024
model years
1
vehicle entries
Official summary
Some vehicles may exhibit the CHECK ENGINE light turning ON with DTC P0133:00 (A/F sensor system: Slow response) stored in memory. This may be caused by a false error detected due to improper error detection logic for some situations. To eliminate this concern, the control software of the PCM has been modified.
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.