Mazda CX-90 2024 — technical service bulletin
Bulletin SA-052-23 · NHTSA communication 10243555 · issued Sep 11, 2023
Technical service bulletin
communication type
Equipment Adaptive/mobility
component
2024
model years
1
vehicle entries
Official summary
Some customers may experience any of the following: Multiple Warning Lights On Infotainment center display blank Engine no start unless the key transmitter is placed near the start button. Interior lights do not illuminate. DTC P2507:00 - PCM, PCM POWER SYSTEM: (LOW INPUT) stored. DTC U0156:00 - PCM, CAN communication system, Communication error with CMU (Connectivity Master Unit). This may be caused by Fuse F1 not fully seated or poor terminal tension.
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.