2024 Mazda CX-90 Plug-In Hybrid engine problems
30 owner complaints filed with NHTSA name the engine on the 2024 Mazda CX-90 Plug-In Hybrid — 32% of all complaints for this model year.
What owners report
“Dear NHTSA Team, I am writing to formally report and follow up on a safety-related issue regarding my 2024 Mazda CX-90 PHEV, VIN: [XXX] . The vehicle has experienced repeated defects affecting critical safety systems, including: Engine overheating and cooling system failures Repeated engine…”
filed Dec 16, 2025
“I am reporting serious safety concerns with my Mazda CX-90 PHEV (leased, manufactured September 2023). These issues create unacceptable risk to occupants and other road users. Multiple Severe Recalls: My vehicle has had at least four major recalls: • 6323J – Engine & Motor Shutdown: Complete loss…”
filed Dec 11, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
This Service Alert supersedes the previously issued service alert listed below. The changes are noted in Red text. SA-038/26 06/15/26 DESCRIPTION Some customers may complain about any of the following: 1. Infotainment…
SA-038-26a · Service Bulletin/Repair Instructions · issued Sep 4, 2026
Other reported problem areas on the 2024 Mazda CX-90 Plug-In Hybrid
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.