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EnginePart report

2024 Mazda CX-90 Engine Problems

Complaints
51about this part
Share
14%of 365 total for the year
Median mileage
29,000miles
Trend
Too newThis model year is less than 4 years old, so a trend is not meaningful yet.

NHTSA recorded 51 complaints about the engine of the 2024 Mazda CX-90, 14% of the 365 complaints for this model year. Where a mileage was given, the median is 29,000 miles.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“The wires under the hood were chewed up by rodents. The cars wires are insulated with a soy based wiring coating. My car is at the dealership for repair and deemed undrivable. This is so unfair because the car is new and only has 6200 miles on it. I am now facing insurance deductible. The dealer says the vehicle is undrivable because it is a safety issue and the engine might catch fire”

NHTSA complaint #11643864, filed 2025-02

“When turning on the heater or AC, the car blows out a coolant smell out of the vents. It does it every time the heat is turned on or switched over to AC. We have another appointment with the dealership to have this looked at, as well as many other issues we're having with this vehicle.”

NHTSA complaint #11737090, filed 2026-05

“I bought a brand new 2024 CX90 in May 2025. I was on the on-ramp entering a Highway at an accelerating speed when the car all of a sudden went into a limp mode and was unable to accelerate. This limp mode that kicked in almost caused me to be hit from behind. Immediately on the dash it flashed Engine Malfunction. I had to pull over to the side of the highway and had the car brought to my local Mazda Dealer. …”

NHTSA complaint #11686926, filed 2025-09

“I’ve only owned this brand new vehicle for just two months. Had I known these issues, I would not have purchased the CX90! Having issue with I-stop causing vehicle to stop whenever and now the dash display just popped up yesterday 12/09/24 regarding “Headlight Malfunction contact dealership”. …”

NHTSA complaint #11629936, filed 2024-12

“This issue I’ve seen on different forums just happened to me. Lower radiator hose leaking. Car is at 37000 miles and under no circumstance should this be happening to a new vehicle, Mazda has known about the issue apparently in my model year the manufacturing over tighted the clamp causing it to fail prematurely. This can be catastrophic especially since these leaks are just waiting to happen. If someone was on the highway it would be dangerous”

NHTSA complaint #11735826, filed 2026-05

Related service bulletins

Engine: other model years

YearComplaintsShare of year
202618%
2025720%
20245114%

Other parts of the 2024 Mazda CX-90

Steering
192 complaints
Electrical system
40 complaints
Other or unknown
38 complaints
Forward collision avoidance
36 complaints
Transmission and drivetrain
31 complaints
Vehicle speed control
17 complaints
Brakes
16 complaints
Fuel system
16 complaints
Lane departure
16 complaints
Body and structure
9 complaints
Suspension
9 complaints
Visibility (wipers, defrost, mirrors)
9 complaints

← All problems reported for the 2024 Mazda CX-90

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology