Mazda CX-5 2018–2021 — technical service bulletin
Bulletin 01-004-21-3773 · NHTSA communication 10188014 · issued Feb 5, 2021
Technical service bulletin
communication type
Engine and Engine Cooling
component
2018–2021
model years
4
vehicle entries
Official summary
Some vehicles may have the check engine light on with DTC P0524:00 or P055F:00 stored in memory. Contamination in the engine oil may cause the engine oil solenoid valve to become stuck, resulting in improper operation of the oil pump and improper oil pressure.
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.