Last updated: 2026-03-04
Hyundai Ioniq 5 vs Kia EV6: Reliability Compared

Hyundai Ioniq 5

Kia EV6
Choosing between the Hyundai Ioniq 5 and the Kia EV6? This page compares their reliability scores, NHTSA recall history, owner-reported complaints, and estimated annual repair costs so you can make a confident long-term ownership decision between these two compact suvs.
Our reliability scores are based on NHTSA recall and complaint data, independent repair cost estimates, and sales-normalized complaint rates. The Kia EV6 currently leads with an average score of 57/100 compared to 52/100. Scroll down for the full year-by-year breakdown, common problem areas, and repair cost comparison.
How Do the Hyundai Ioniq 5 and Kia EV6 Generations Compare?
Verdict
The Kia EV6 is more reliable than the Hyundai Ioniq 5, scoring 57/100 vs 52/100.
The Kia EV6 and Hyundai Ioniq 5 are closely matched in reliability, with the Ioniq 5 slightly edging out the EV6 with an average reliability score of 44 compared to 43. Despite this, the EV6 has fewer recalls, with 8 compared to the Ioniq 5's 18 over five years. However, the Kia EV6 has a lower owner complaint rate at 48.9 per 10,000 sold, while the Hyundai Ioniq 5 records 63.4. Both vehicles share common issues with their electrical systems and power trains, but the Ioniq 5 also has notable concerns with its forward collision avoidance system.
Key Differences
- 1Kia EV6 has 14.5 fewer complaints per 10k sold
- 2Kia EV6 has 10 fewer total recalls
- 3Kia EV6 scores 5 points higher in reliability
Category Scoreboard
Hyundai Ioniq 5 vs Kia EV6: Which Is More Reliable?
| Metric | Hyundai Ioniq 5 | Kia EV6 |
|---|---|---|
| Reliability Score | 52/100 | 57/100 |
| Years Tracked | 5 | 5 |
| Total Recalls | 18 | 8 |
| Complaints per 10k Sold | 63.4 | 48.9 |
| Year Wins | 0 (1 tied) | 3 (1 tied) |
What Are the Common Problems With the Hyundai Ioniq 5 and Kia EV6?
The Kia EV6 and Hyundai Ioniq 5 both exhibit a significant number of complaints regarding their electrical systems, with the Ioniq 5 facing a notably higher volume at 554 complaints compared to the EV6's 204. The Hyundai Ioniq 5 also leads in power train issues, with 182 complaints versus the Kia EV6's 56. While both models have crash-linked complaints across various categories, the Hyundai Ioniq 5 shows a higher incidence in the electrical system and service brakes, totaling 5 and 4 crash-linked complaints, respectively. The Kia EV6, however, has a higher relative frequency of crash-linked issues in the "Unknown or Other" category, with 4 incidents compared to the Ioniq 5's 1.
| Component | Hyundai Ioniq 5 | Kia EV6 |
|---|---|---|
| ELECTRICAL SYSTEM | 36.8High | 28.4High |
| POWER TRAIN | 12.1Above Avg | 7.8Above Avg |
| UNKNOWN OR OTHER | 2.9Low | 3.3Average |
| SERVICE BRAKES | 1.2Low | 1.8Low |
| FUEL/PROPULSION SYSTEM | 1.5Low | 1.3Low |
| VEHICLE SPEED CONTROL | 1.3Low | 0.6Very Low |
| FORWARD COLLISION AVOIDANCE | 1.4Low | 0.3Very Low |
| STEERING | 0.9Very Low | 0.3Very Low |
| STRUCTURE | —None | 1Very Low |
| ENGINE | 0.4Very Low | 0.4Very Low |
| LANE DEPARTURE | 0.4Very Low | 0.4Very Low |
| TIRES | 0.4Very Low | 0.4Very Low |
| AIR BAGS | —None | 0.4Very Low |
| EXTERIOR LIGHTING | 0.3Very Low | —None |
| VISIBILITY/WIPER | 0.3Very Low | —None |
| PARKING BRAKE | 0.1Very Low | —None |
Complaints per 10,000 units sold, aggregated across all tracked model years from NHTSA owner reports.
How Does Hyundai Ioniq 5 vs Kia EV6 Reliability Compare by Year?
| Year | Hyundai Ioniq 5 | Kia EV6 | Edge |
|---|---|---|---|
| 2025 | 53/1008R / 158C | 69/1000R / 0C | Kia EV6 |
| 2024 | 58/1002R / 134C | 59/1002R / 38C | Kia EV6 |
| 2023 | 50/1003R / 311C | 52/1003R / 98C | Kia EV6 |
| 2022 | 46/1003R / 349C | 46/1003R / 215C | Tie |
| 2026(predicted) | 54/100(predicted) | 60/100(predicted) | Kia EV6 |
Best years to cross-shop: The 2024 Hyundai Ioniq 5 scored 58/100 and the 2025 Kia EV6 scored 69/100 — these represent the strongest model years in our tracking range.
Who Should Buy the Hyundai Ioniq 5 vs the Kia EV6?
Hyundai Ioniq 5 vs Kia EV6: Common Questions
- Is the Hyundai Ioniq 5 more reliable than the Kia EV6?
- Based on our data, the Kia EV6 is more reliable with an average score of 57/100 compared to 52/100. The difference is modest, so both are reasonable choices.
- Which has more recalls, the Hyundai Ioniq 5 or the Kia EV6?
- The Hyundai Ioniq 5 has more recalls (18) compared to the Kia EV6 (8). More recalls don't always mean worse reliability — some are minor — but it's worth reviewing what each recall covers.
- Which has fewer owner complaints, the Hyundai Ioniq 5 or the Kia EV6?
- Adjusted for sales volume, the Kia EV6 has a lower complaint rate at 48.9 per 10,000 sold versus 63.4 for the Hyundai Ioniq 5. This per-sales normalization gives a fairer comparison than raw totals.
Related Reliability Comparisons
More Hyundai Ioniq 5 comparisons
How We Calculate Reliability Scores
Auto Reliability Index scores are calculated on a 0–100 scale using a weighted formula that combines multiple public data sources. Each factor is weighted based on its predictive value for real-world ownership experience.
Key Ranking Factors
Complaint Severity
NHTSA owner complaints weighted by component category (e.g., powertrain, safety systems, electronics, cosmetic) — safety-critical issues carry more weight than cosmetic ones. Adjusted for sales volume so high-volume models aren't unfairly penalized.
Repair Costs
Independent reliability ratings based on repair frequency, average repair costs, and severity of typical repairs for each model.
Recall Impact
Number of NHTSA recalls weighted by severity. “Stop driving” and fire-risk recalls are penalized more heavily than minor software or labeling recalls.
Issue Diversity
Measures how many major vehicle systems (engine, transmission, electrical, braking, etc.) have recorded complaints. A vehicle with issues spread across many systems may indicate systemic quality issues.
Scores are grouped into four tiers:
- 80–100: Excellent — Top-tier reliability, minimal issues
- 60–79: Good — Reliable with some minor concerns
- 40–59: Mixed — Notable issues, research before buying
- 0–39: Risky — Significant problems, proceed with caution
Data is sourced from NHTSA recall records, owner complaint filings, and independent repair databases. Scores are recalculated as new data becomes available. While the weighting model is proprietary, all underlying data sources are public and traceable.
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