Last updated: 2026-03-04
Mazda CX-90 vs Toyota 4RUNNER: Reliability Compared

Mazda CX-90

Toyota 4RUNNER
Choosing between the Mazda CX-90 and the Toyota 4RUNNER? 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 midsize suvs.
Our reliability scores are based on NHTSA recall and complaint data, independent repair cost estimates, and sales-normalized complaint rates. The Toyota 4RUNNER currently leads with an average score of 80/100 compared to 51/100. Scroll down for the full year-by-year breakdown, common problem areas, and repair cost comparison.
How Do the Mazda CX-90 and Toyota 4RUNNER Generations Compare?
Verdict
The Toyota 4RUNNER is more reliable than the Mazda CX-90, scoring 80/100 vs 51/100.
The Toyota 4RUNNER significantly outperforms the Mazda CX-90 in reliability, with an average reliability score of 90/100 compared to the CX-90's 51/100. The 4RUNNER has a notably lower owner complaint rate of 1.5 per 10,000 sold, while the CX-90 reports 111.2 complaints per 10,000 sold. Additionally, the 4RUNNER's estimated annual repair cost is $514, providing a clearer picture of maintenance expenses, whereas the CX-90 lacks such data. Despite both vehicles experiencing issues with the steering and electrical systems, the 4RUNNER's lower recall and complaint rates make it the more reliable choice in the midsize SUV segment.
Key Differences
- 1Toyota 4RUNNER has 109.7 fewer complaints per 10k sold
- 2Toyota 4RUNNER scores 29 points higher in reliability
- 3Mazda CX-90 has 4 fewer total recalls
Category Scoreboard
Mazda CX-90 vs Toyota 4RUNNER: Which Is More Reliable?
| Metric | Mazda CX-90 | Toyota 4RUNNER |
|---|---|---|
| Reliability Score | 51/100 | 80/100 |
| Years Tracked | 3 | 9 |
| Total Recalls | 13 | 17 |
| Complaints per 10k Sold | 111.2 | 1.5 |
| Safety RatingNHTSA overall | 2026 NHTSA | 2026 NHTSA |
| Frontal | ||
| Side | ||
| Rollover | ||
| Year Wins | 0 | 2 |
What Are the Common Problems With the Mazda CX-90 and Toyota 4RUNNER?
The Toyota 4RUNNER and Mazda CX-90 exhibit distinct problem profiles, with the 4RUNNER showing a notable concentration of complaints in the air bags category, which includes 20 crash-linked incidents, suggesting a significant safety concern. In contrast, the Mazda CX-90 has a higher volume of steering-related issues, with 80 complaints and 5 linked to crashes, indicating potential handling or control challenges. While both models experience issues with their electrical systems, the CX-90 also reports a substantial number of complaints related to forward collision avoidance and power train, areas where the 4RUNNER has fewer concerns. Overall, the CX-90 seems to face more diverse technical challenges, whereas the 4RUNNER's primary safety concern is its air bag system.
| Component | Mazda CX-90 | Toyota 4RUNNER |
|---|---|---|
| STEERING | 31.8High | 0.2Very Low |
| ELECTRICAL SYSTEM | 17.5High | 0.1Very Low |
| FORWARD COLLISION AVOIDANCE | 11.5Above Avg | —None |
| POWER TRAIN | 8.3Above Avg | —None |
| ENGINE | 6.8Average | —None |
| VEHICLE SPEED CONTROL | 6.4Average | —None |
| VISIBILITY/WIPER | 4Average | —None |
| SERVICE BRAKES | 2.8Low | 0.2Very Low |
| FUEL/PROPULSION SYSTEM | 2Low | —None |
| STRUCTURE | 1.6Low | —None |
| UNKNOWN OR OTHER | 0.8Very Low | 0.2Very Low |
| AIR BAGS | —None | 0.1Very Low |
| SUSPENSION | —None | 0.1Very Low |
| FUEL SYSTEM | —None | 0.1Very Low |
| BACK OVER PREVENTION | —None | —None |
| SEAT BELTS | —None | —None |
| TIRES | —None | —None |
| EXTERIOR LIGHTING | —None | —None |
Complaints per 10,000 units sold, aggregated across all tracked model years from NHTSA owner reports.
Which Is Cheaper to Maintain: Mazda CX-90 or Toyota 4RUNNER?
How Does Mazda CX-90 vs Toyota 4RUNNER Reliability Compare by Year?
| Year | Mazda CX-90 | Toyota 4RUNNER | Edge |
|---|---|---|---|
| 2025 | 63/1002R / 21C | 81/1001R / 36C | Toyota 4RUNNER |
| 2024 | 38/10011R / 259C | 79/1001R / 8C | Toyota 4RUNNER |
| 2026(predicted) | 51/100(predicted) | 81/100(predicted) | Toyota 4RUNNER |
Best years to cross-shop: The 2025 Mazda CX-90 scored 63/100 and the 2025 Toyota 4RUNNER scored 81/100 — these represent the strongest model years in our tracking range.
Who Should Buy the Mazda CX-90 vs the Toyota 4RUNNER?
Mazda CX-90 vs Toyota 4RUNNER: Common Questions
- Is the Mazda CX-90 more reliable than the Toyota 4RUNNER?
- Based on our data, the Toyota 4RUNNER is more reliable with an average score of 80/100 compared to 51/100. That's a significant difference worth considering.
- Which has more recalls, the Mazda CX-90 or the Toyota 4RUNNER?
- The Toyota 4RUNNER has more recalls (17) compared to the Mazda CX-90 (13). 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 Mazda CX-90 or the Toyota 4RUNNER?
- Adjusted for sales volume, the Toyota 4RUNNER has a lower complaint rate at 1.5 per 10,000 sold versus 111.2 for the Mazda CX-90. This per-sales normalization gives a fairer comparison than raw totals.
- Is the Mazda CX-90 or Toyota 4RUNNER safer?
- Based on NHTSA crash test ratings, the Mazda CX-90 has a higher overall safety rating of 5/5 stars compared to 4/5 for the Toyota 4RUNNER. Check sub-ratings (frontal, side, rollover) above for a more detailed safety comparison.
Related Reliability Comparisons
More Mazda CX-90 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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