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2018 Mazda Cx-90 Mhev
Solid pick. The complaint record is strong for its age. It does carry safety recalls, so confirm every one shows "remedy completed" on the VIN before money changes hands.
125 owner complaints · 2 recalls · data verified July 19, 2026 · source: NHTSA
Why buy?
Engine problems dominate (58% of complaints, typically reported near 66k miles).
Very few owner complaints for its age and sales volume.
Score breakdown, by factor
Full methodology →#130 of 400Among the 2018 models with a matured record, the 2018 Mazda Cx-90 Mhev ranks #130, scoring higher than 64% of them. See the 2018 ranking →
Complaints filed per year
Fading = early teething worked out. Climbing = problems aging in.
How it crashes
NHTSA’s own crash tests, separate from the reliability score above.
5/5 overall
NHTSA 5-Star Safety Rating · 2018 Mazda CX-9 SUV FWD
Rollover risk in a single-vehicle crash: 16%
No open NHTSA defect investigations on file.
Source: nhtsa.gov/ratings. Star ratings compare vehicles within the same class and size, not across every car on the road.
The road ahead
What breaks on a 2018 Mazda Cx-90 Mhev, plotted where owners report it happening.
Also reported (mileage varies): Electrical system (15) · Brakes (11) · Fuel system (7)
Mileage medians come from owners who mentioned an odometer reading in their NHTSA complaint, a rough guide, not a schedule.
Engine
58%73 complaints · typically near 66k mi · 22 in the last 2 years
“My wife was driving the vehicle when the emergency lights started going off. She had to pull over because the car wouldn't run and said it was overheated. All the main…”
Electrical system
12%15 complaints · 6 in the last 2 years
“Passenger seat heater either had a grounding issue or shorted out, causing to seat to start smoldering and catching fire, destroying the seat. There has been recalls a…”
Transmission & drivetrain
10%13 complaints · typically near 77k mi · 5 in the last 2 years
“coolant leaks at cylinder head , Mazda of America knows issues but not willing to recall , they hava a bulletin number 01-002/23 . pls help”
Brakes
9%11 complaints · 4 in the last 2 years
“my 2018 MAZDA CX-9 safety issue SCBS / SBS, LAS / LDWS, MASTER AND/OR HBC WARNING LIGHTS Forward sensing camera (FSC) stops functioning cause my car run rough even dep…”
Check it against this car’s mileage
Type the odometer reading on the actual car you’re looking at to see which of these problem areas owners tend to report before it, around it, or after it.
We can place 2 of this model's commonly reported problem areas against a mileage. Nothing is stored.
Read all 125 owner complaints in their own words → · just the 5 crash/fire/injury reports →
Recalls (2)
Safety recall repairs are free at the brand’s franchised dealers. Before buying, run the VIN at nhtsa.gov/recalls and make the seller show the work was done.
Fuel System, Gasoline · 21V875000
Mazda North American Operations (Mazda) is recalling certain 2018 Mazda3, Mazda6, 2019 CX-3, 2018-2019 MX-5, CX-5, CX-9, and 2019-2020 Mazda2 vehicles. The impeller inside the low-pressure fuel pump may crack and deform, potentially causing the fuel pump to fail.
Risk: Fuel pump failure may cause an engine stall, increasing the risk of a crash.
Fix: Dealers will replace the fuel pumps, free of charge. Owner notification letters were mailed July 18, 2022. Owners may contact Mazda customer service at 1-800-222-5500 Option 4. Mazda's number for this recall is 5321K.
Electrical System · 19V403000
Mazda North American Operations (Mazda) is recalling certain 2018 CX-9 vehicles. The wiring harness may disrupt electrical communications and disable the passenger frontal air bag, turn signals, and/or engine starting system.
Risk: The passenger frontal air bag may not deploy, increasing the risk of injury. Inoperable turn signals prevent the driver from signaling to other drivers, increasing the risk of crash.
Fix: Mazda will notify owners, and dealers will repair the wiring harnesses, free of charge. The recall began July 26, 2019. Owners may contact Mazda customer service at 1-800-222-5500, Option 4. Mazda's number for this recall is 3419E.
Questions to ask the seller
Questions worth asking the seller of this Mazda before you buy, drawn from its public record:
- NHTSA lists 2 recall campaigns for the 2018 Mazda Cx-90 Mhev. Can you run this car's VIN at nhtsa.gov/recalls and confirm each one shows "Remedy Completed"?
- Owners of this model report engine problems more than anything else (owners tend to report it near 66k miles). Has this car shown any engine symptoms, and are there repair records for it?
- Owners of this model report electrical system problems more than anything else. Has this car shown any electrical system symptoms, and are there repair records for it?
- Has this car been in any accident or had any structural, airbag, or flood-related repair? Do you have a clean title and a recent history report (Carfax / AutoCheck)?
- How many owners has it had, do you have the maintenance records, and why are you selling it?
- Are you open to me having an independent mechanic inspect it before we settle on a price?
Before you hand over money
Verify the recall work was done
NHTSA’s free lookup shows whether this exact car had its recall remedies completed.
Free NHTSA VIN check ↗Get a pre-purchase inspection
A $150 to $250 independent inspection of this exact 2018 Mazda CX-90 MHEV beats every score on the internet, including ours.
What to ask forNot set on the 2018? See how every Cx-90 Mhev model year scores →
Cross-shopping? Compare the 2018 Mazda Cx-90 Mhev against another car →
What owners say
Real owners of this exact model-year, shown separately from the NHTSA score. If they disagree, that’s worth knowing.