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Different vehicle classes · Different segments — choice depends on use case

2006 Hyundai Sonata vs 2006 Mazda Mazda6

Reliability comparison based on NHTSA recall and complaint records.

Synced 2026-06-14 Source: NHTSA public records Reviewed by ASE-certified contributors
Quick verdict
2006 Hyundai Sonata versus 2006 Mazda Mazda6 — different vehicles, different jobs

These two come from different segments, which makes a direct reliability comparison less meaningful than usual. Showing the data so you can see what each one is good at and where each one breaks down. The reliability scores (2.9 versus 3.7) reflect different testing populations and use patterns — don't treat them as apples-to-apples.

2006 Hyundai Sonata

2.9/5
Reliability score
1,047 complaints
4 recalls (0 critical)
$14,650 repair exposure
vs

2006 Mazda Mazda6

3.7/5
Reliability score
193 complaints
0 recalls (0 critical)
$13,300 repair exposure

Stories from the shop

These come from different vehicle segments, which means we're not declaring a winner here. The 2006 Hyundai Sonata scores 2.9; the 2006 Mazda Mazda6 scores 3.7. Different testing populations, different driving patterns, different categories of failure. Use the data below to understand what each one is good at and what each one breaks.

If you lean 2006 Hyundai Sonata, know what you're getting into on airbags and visibility. Those categories have noticeably more complaints than the 2006 Mazda Mazda6 sees, and they're not cheap items when they go.

Going with the 2006 Mazda Mazda6? Watch the powertrain and lighting. The 2006 Hyundai Sonata has fewer reports in those categories, so you'd be trading one set of weak spots for another.

Bottom line: these are different categories of vehicle. Pick based on what you actually need it for. We're showing the reliability data so you can factor in long-term ownership cost, not pick a winner.

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

Side-by-side by problem area

Category
2006 Hyundai Sonata
2006 Mazda Mazda6
airbags
398 reports
critical · ~$1,100
94 reports
severe · ~$1,100
visibility
178 reports
moderate · ~$350
No reports
electrical
68 reports
moderate · ~$850
10 reports
severe · ~$850
suspension
73 reports
moderate · ~$900
No reports
engine
46 reports
severe · ~$3,100
20 reports
moderate · ~$3,100
brakes
53 reports
severe · ~$450
6 reports
severe · ~$450
steering
35 reports
moderate · ~$700
7 reports
severe · ~$700
cruise control
32 reports
severe · ~$600
No reports
powertrain
No reports
23 reports
moderate · ~$2,500
lighting
No reports
7 reports
moderate · ~$250

Common questions

Which is more reliable, the 2006 Hyundai Sonata or the 2006 Mazda Mazda6?

Based on the NHTSA data we track, the 2006 Mazda Mazda6 comes out ahead with a reliability score of 3.7 versus 2.9. The margin is clear, 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 2006 Hyundai Sonata?

Compared to the 2006 Mazda Mazda6, the 2006 Hyundai Sonata sees more reported issues in airbags and visibility. 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 2006 Mazda Mazda6?

Compared to the 2006 Hyundai Sonata, the 2006 Mazda Mazda6 has more complaints in powertrain and lighting. 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?

The 2006 Hyundai Sonata has more active recalls (4 vs 0). Total count is less important than severity, though — a vehicle with one critical recall and zero moderate ones is generally riskier than one with five moderate recalls.

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 $14,650 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: 2006 Hyundai Sonata on NHTSA · 2006 Mazda Mazda6 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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