Chevrolet Blazer vs Nissan 370Z: which is more reliable?
The Nissan 370Z is ahead of the Chevrolet Blazer on the federal record, 89/100 against 83/100 — a real but narrow gap that a bad model year on either side closes.
The record, side by side

Chevrolet Blazer
- 7 model years scored
- 690 owner complaints on record
- about 23 complaints per year on the road
- 11 recall campaigns, 2 safety-critical
- best year 2022 (92/100) · worst 2020 (70/100)

Nissan 370Z
- 9 model years scored
- 191 owner complaints on record
- about 1 complaints per year on the road
- 2 recall campaigns, 1 safety-critical
- best year 2019 (94/100) · worst 2011 (52/100)
Mean score is the average across model years from 2013 on, where both records are comparable. How the score works.
Year by year: Blazer against 370Z
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
Chevrolet Blazer
- Electrical System — 204 complaints
- Power Train — 181 complaints
- Engine — 181 complaints
Nissan 370Z
- Power Train — 96 complaints
- Steering — 44 complaints
- Electrical System — 28 complaints
They do not fail the same way: the Blazer's complaints concentrate in Electrical System, the 370Z's in Power Train. 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
Chevrolet Blazer: no model year scores below 45; the strongest are 2019, 2020, 2021, 2022, 2023, 2024….
Nissan 370Z: no model year scores below 45; the strongest are 2012, 2013, 2014, 2015, 2016, 2017….
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 Chevrolet Blazer prices at about $40,800 and a Nissan 370Z at about $24,200 — the Nissan 370Z is roughly $16,600 less, and they return 24.0 against 22.0 MPG combined.
Class-level estimates re-priced to your country, not a valuation of one car. Method.
FAQ
Is the Chevrolet Blazer or the Nissan 370Z more reliable?
On the NHTSA record the Nissan 370Z scores 89/100 against the Chevrolet Blazer's 83/100, averaged across every model year we hold. The gap is small enough that the model year matters more than the badge.
Which Chevrolet Blazer and Nissan 370Z years should I avoid?
Chevrolet Blazer: no year scores below 45. Nissan 370Z: 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 Chevrolet Blazer and the Nissan 370Z?
The largest complaint group on the Chevrolet Blazer is Electrical System (204 complaints); on the Nissan 370Z it is Power Train (96).
Is the Chevrolet Blazer or the Nissan 370Z cheaper to own?
A recent used Chevrolet Blazer prices at about $40,800 and a Nissan 370Z at about $24,200, before insurance and the maintenance band. Both pages carry the five-year running-cost figure.