Hyundai Genesis vs Mazda CX-9: which is more reliable?
The Mazda CX-9 is clearly ahead of the Hyundai Genesis on the federal record: 84/100 against 70/100 across every model year we score.
The record, side by side

Hyundai Genesis
- 6 model years scored
- 1,039 owner complaints on record
- about 14 complaints per year on the road
- 26 recall campaigns, 23 safety-critical
- best year 2014 (97/100) · worst 2015 (39/100)

Mazda CX-9
- 11 model years scored
- 885 owner complaints on record
- about 7 complaints per year on the road
- 19 recall campaigns, 13 safety-critical
- best year 2022 (93/100) · worst 2012 (50/100)
Mean score is the average across model years from 2013 on, where both records are comparable. How the score works.
Year by year: Genesis against CX-9
The comparison that decides the purchase. A nameplate is not one car — a redesign can move the record sixty points inside two years, and the two nameplates rarely move together.
What owners actually complain about
Hyundai Genesis
- Electrical System — 245 complaints
- Engine — 232 complaints
- Service Brakes — 190 complaints
Mazda CX-9
- Engine — 302 complaints
- Service Brakes — 284 complaints
- Power Train — 87 complaints
They do not fail the same way: the Genesis's complaints concentrate in Electrical System, the CX-9's in Engine. That difference matters more to a buyer than the score gap, because it says which repair bill you are taking on.
Years to avoid on each
Hyundai Genesis — avoid: 2015.
Mazda CX-9: no model year scores below 45; the strongest are 2014, 2015, 2016, 2017, 2019, 2020….
A year scores below 45 on complaints per year of exposure and recall campaigns. Every car’s years to avoid.
What each costs today
A recent used Hyundai Genesis prices at about $28,200 and a Mazda CX-9 at about $34,200 — the Hyundai Genesis is roughly $6,000 less, and they return 19.0 against 23.0 MPG combined.
Class-level estimates re-priced to your country, not a valuation of one car. Method.
FAQ
Is the Hyundai Genesis or the Mazda CX-9 more reliable?
On the NHTSA record the Mazda CX-9 scores 84/100 against the Hyundai Genesis's 70/100, averaged across every model year we hold. The Mazda CX-9 carries about 7 complaints per year on the road against 14 for the Hyundai Genesis.
Which Hyundai Genesis and Mazda CX-9 years should I avoid?
Hyundai Genesis: 2015. Mazda CX-9: no year scores below 45. Each of those scores under 45 out of 100 on complaints per year of exposure and recall campaigns.
What goes wrong on the Hyundai Genesis and the Mazda CX-9?
The largest complaint group on the Hyundai Genesis is Electrical System (245 complaints); on the Mazda CX-9 it is Engine (302).
Is the Hyundai Genesis or the Mazda CX-9 cheaper to own?
A recent used Hyundai Genesis prices at about $28,200 and a Mazda CX-9 at about $34,200, before insurance and the maintenance band. Both pages carry the five-year running-cost figure.