Mazda CX-90 problems: common issues, costs & fixes
This guide pulls together the 3 Mazda CX-90 problems we've researched, covering model years 2024–2025. Each one links to a full answer with ranked causes, rough costs and the 8 owner threads, manufacturer documents and NHTSA records we cite across them. For the most likely cause, 3 of these are usually a shop job and 0 are often DIY-friendly.
Mazda CX-90 problems at a glance
| Problem | Years | Most likely cause | Rough cost | DIY or shop |
|---|---|---|---|---|
| CX-90 oil leak at low miles—often turbo feed gasket or front differential seal area | 2024–2025 | Turbo oil-feed gasket seep | — | Shop |
| CX-90 transmission failure, harsh shifting ending in replacement, or lemon-law path at low miles | 2024–2025 | Internal transmission failure | — | Shop |
| jerky or clunky shifting at low speed | 2024–2025 | Transmission and engine control software | — | Shop |
Costs are rough ranges from owner reports on each answer page and vary by region, shop and parts. A dash means the answer doesn't list a cost.
Quick answers
2024–2025 Mazda CX-90: CX-90 oil leak at low miles—often turbo feed gasket or front differential seal area
A brand-new CX-90 should not drip oil.
2024–2025 Mazda CX-90: CX-90 transmission failure, harsh shifting ending in replacement, or lemon-law path at low miles
Some CX-90s need a transmission at shockingly low miles. Document everything, push for warranty replacement, and know your lemon-law clock.
2024–2025 Mazda CX-90: jerky or clunky shifting at low speed
Many CX-90 owners with jerky or knocking low-speed shifts say a dealer software update or transmission reset and relearn made it smoother. Mazda has told some PHEV owners that a grunt on the 1-2 shift is normal.
Before you work on your Mazda CX-90
- Check your VIN for open recalls at nhtsa.gov/recalls.
- Buying a used Mazda CX-90? Run our free inspection check or use the pre-purchase checklists.
Safety: anything involving brakes, steering, suspension, airbags, fuel or high-voltage systems should be verified with a mechanic before you drive or repair it.