Jeep Wrangler Unlimited vs Mazda CX-9: which is more reliable?
The Mazda CX-9 is ahead of the Jeep Wrangler Unlimited on the federal record, 84/100 against 80/100 — a real but narrow gap that a bad model year on either side closes.
The record, side by side

Jeep Wrangler Unlimited
- 6 model years scored
- 3,516 owner complaints on record
- about 56 complaints per year on the road
- 0 recall campaigns, 0 safety-critical
- best year 2017 (90/100) · worst 2020 (58/100)

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: Wrangler Unlimited 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
Jeep Wrangler Unlimited
- Engine — 875 complaints
- Power Train — 747 complaints
- Electrical System — 629 complaints
Mazda CX-9
- Engine — 302 complaints
- Service Brakes — 284 complaints
- Power Train — 87 complaints
Both nameplates have Engine as their largest complaint group, so the choice between them is about how often, not about what.
Years to avoid on each
Jeep Wrangler Unlimited: no model year scores below 45; the strongest are 2012, 2013, 2014, 2015, 2017.
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 Jeep Wrangler Unlimited prices at about $28,800 and a Mazda CX-9 at about $34,200 — the Jeep Wrangler Unlimited is roughly $5,400 less, and they return 20.0 against 23.0 MPG combined.
Class-level estimates re-priced to your country, not a valuation of one car. Method.
FAQ
Is the Jeep Wrangler Unlimited or the Mazda CX-9 more reliable?
On the NHTSA record the Mazda CX-9 scores 84/100 against the Jeep Wrangler Unlimited's 80/100, averaged across every model year we hold. The gap is small enough that the model year matters more than the badge.
Which Jeep Wrangler Unlimited and Mazda CX-9 years should I avoid?
Jeep Wrangler Unlimited: no year scores below 45. 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 Jeep Wrangler Unlimited and the Mazda CX-9?
The largest complaint group on the Jeep Wrangler Unlimited is Engine (875 complaints); on the Mazda CX-9 it is Engine (302).
Is the Jeep Wrangler Unlimited or the Mazda CX-9 cheaper to own?
A recent used Jeep Wrangler Unlimited prices at about $28,800 and a Mazda CX-9 at about $34,200, before insurance and the maintenance band. Both pages carry the five-year running-cost figure.