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Direct rivals · Direct rivals in the compact sedan segment

2021 Hyundai Elantra vs 2021 Mazda Mazda3

Reliability comparison based on NHTSA recall and complaint records.

Synced 2026-06-14 Source: NHTSA public records Reviewed by ASE-certified contributors
Quick verdict
2021 Mazda Mazda3 edges ahead by a narrow margin

These two are direct rivals built for the same use case. The 2021 Mazda Mazda3 comes out slightly ahead on reliability data (4.0 versus 3.7), but the margin is small enough that specific feature preferences could legitimately tip the choice the other way.

2021 Hyundai Elantra

3.7/5
Reliability score
126 complaints
1 recalls (0 critical)
$10,350 repair exposure
vs
More reliable

2021 Mazda Mazda3

4.0/5
Reliability score
49 complaints
1 recalls (0 critical)
$8,000 repair exposure

Stories from the shop

The 2021 Mazda Mazda3 edges this one, but it's tight. We're talking 4.0 versus 3.7 on reliability. Close enough that specific feature preferences or one favorable price could legitimately swing it the other way.

If you lean 2021 Hyundai Elantra, know what you're getting into on electrical and seatbelts. Those categories have noticeably more complaints than the 2021 Mazda Mazda3 sees, and they're not cheap items when they go.

Going with the 2021 Mazda Mazda3? Watch the engine and airbags. The 2021 Hyundai Elantra has fewer reports in those categories, so you'd be trading one set of weak spots for another.

On the dollars-and-cents side, total repair exposure across the top problem areas runs 1.3x higher on the 2021 Hyundai Elantra. That's the number to keep in mind when you're pricing the deal — a $2,000 difference in purchase price disappears the first time you're staring at a transmission rebuild.

Bottom line: pick based on use case more than the spec sheet. If you tow heavy and don't want to think about it, that's one calculation. If you're a daily driver and want the cheapest path forward, that's another. Both of these will get you down the road. We're just telling you where each one is most likely to break.

— ProblemsByVin editorial team, drawing on the NHTSA data and shop experience.

Side-by-side by problem area

Category
2021 Hyundai Elantra
2021 Mazda Mazda3
electrical
24 reports
moderate · ~$850
5 reports
severe · ~$850
engine
8 reports
moderate · ~$3,100
16 reports
moderate · ~$3,100
seatbelts
21 reports
critical · ~$500
No reports
powertrain
6 reports
moderate · ~$2,500
3 reports
moderate · ~$2,500
cruise control
8 reports
severe · ~$600
No reports
steering
5 reports
moderate · ~$700
No reports
visibility
4 reports
moderate · ~$350
No reports
airbags
No reports
4 reports
severe · ~$1,100
brakes
No reports
4 reports
moderate · ~$450
body
3 reports
moderate · ~$1,500
No reports

Common questions

Which is more reliable, the 2021 Hyundai Elantra or the 2021 Mazda Mazda3?

Based on the NHTSA data we track, the 2021 Mazda Mazda3 comes out ahead with a reliability score of 4.0 versus 3.7. The margin is narrow, so the verdict could shift if you weight specific categories differently or factor in your own use case.

What goes wrong more often on the 2021 Hyundai Elantra?

Compared to the 2021 Mazda Mazda3, the 2021 Hyundai Elantra sees more reported issues in electrical and seatbelts. That doesn't mean it's a bad truck — it means those are the categories worth budgeting for if you go that direction.

What goes wrong more often on the 2021 Mazda Mazda3?

Compared to the 2021 Hyundai Elantra, the 2021 Mazda Mazda3 has more complaints in engine and airbags. Whether that's a deal-breaker depends on the cost and severity — see the comparison table above for repair cost ranges.

Which has more recalls?

Both vehicles have 1 active recalls. Total recall count alone isn't a great signal — what matters is severity. See the recall counts by severity in the comparison table.

Is an extended warranty worth it on either of these?

Both vehicles are out of factory bumper-to-bumper coverage at this point. Combined repair exposure across the top problem categories runs around $10,350 on the higher-risk vehicle. A quality service contract typically costs $1,800–3,500 over 3 years, so a single major failure usually pays for the contract. The math favors warranty coverage on whichever vehicle you choose, especially if you plan to keep it past 100,000 miles.

Related comparisons

Reliability scores, complaint counts, and severity ratings derived from the NHTSA public records database. Verify each vehicle's federal record: 2021 Hyundai Elantra on NHTSA · 2021 Mazda Mazda3 on NHTSA. "Repair exposure" is the sum of average independent-shop repair costs across each vehicle's tracked problem categories and is intended as a relative comparison, not an exact prediction. Editorial commentary written by ProblemsByVin contributors and reviewed by ASE-certified mechanics. Some links on this page are affiliate links.
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