Last updated: 2026-03-04
Lexus RX vs Mercedes-Benz GLC: Reliability Compared

Lexus RX

Mercedes-Benz GLC
Choosing between the Lexus RX and the Mercedes-Benz GLC? 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 Lexus RX currently leads with an average score of 85/100 compared to 68/100. Scroll down for the full year-by-year breakdown, common problem areas, and repair cost comparison.
How Do the Lexus RX and Mercedes-Benz GLC Generations Compare?
Verdict
The Lexus RX is more reliable than the Mercedes-Benz GLC, scoring 85/100 vs 68/100.
The Lexus RX demonstrates superior reliability with an impressive average reliability score of 99/100 compared to the Mercedes-Benz GLC's 70/100. Despite having a slightly higher owner complaint rate per 10,000 sold at 7.5 compared to the GLC's 7.1, the RX's significantly lower recall count of 42 over nine years contrasts sharply with the GLC's 110 over eight years. The Lexus RX also benefits from a lack of specific repair cost data, suggesting potentially lower maintenance expenses than the GLC's estimated annual repair cost of $807. Overall, the Lexus RX emerges as the more reliable option, particularly when considering recall history and reliability score.
Key Differences
- 1Lexus RX has 68 fewer total recalls
- 2Lexus RX scores 17 points higher in reliability
- 3Mercedes-Benz GLC has 0.4 fewer complaints per 10k sold
Category Scoreboard
Lexus RX vs Mercedes-Benz GLC: Which Is More Reliable?
| Metric | Lexus RX | Mercedes-Benz GLC |
|---|---|---|
| Reliability Score | 85/100 | 68/100 |
| Years Tracked | 9 | 8 |
| Total Recalls | 42 | 110 |
| Complaints per 10k Sold | 7.5 | 7.1 |
| Year Wins | 7 | 0 |
What Are the Common Problems With the Lexus RX and Mercedes-Benz GLC?
The Lexus RX and Mercedes-Benz GLC exhibit distinct problem profiles, with the Lexus RX having a higher total complaint count at 729 compared to the GLC's 543. The RX's most significant issues are with the air bags, which include 73 complaints and 11 crash-linked, indicating a critical safety concern. Conversely, the GLC's most reported issue is the electrical system, with 77 complaints, though only 3 are crash-linked, suggesting less immediate safety implications. While the GLC shows a relatively higher number of engine complaints (68) than the RX (16), the RX's air bag-related concerns potentially represent a more severe safety risk.
| Component | Lexus RX | Mercedes-Benz GLC |
|---|---|---|
| ELECTRICAL SYSTEM | 0.5Very Low | 1Very Low |
| UNKNOWN OR OTHER | 0.6Very Low | 0.8Very Low |
| ENGINE | 0.2Very Low | 0.9Very Low |
| AIR BAGS | 0.8Very Low | 0.1Very Low |
| POWER TRAIN | 0.2Very Low | 0.4Very Low |
| STRUCTURE | 0.2Very Low | 0.3Very Low |
| FUEL/PROPULSION SYSTEM | 0.2Very Low | 0.2Very Low |
| STEERING | —None | 0.4Very Low |
| SERVICE BRAKES | 0.2Very Low | 0.1Very Low |
| FUEL SYSTEM | 0.1Very Low | 0.1Very Low |
| VEHICLE SPEED CONTROL | 0.1Very Low | 0.1Very Low |
| EXTERIOR LIGHTING | —None | 0.2Very Low |
| TIRES | 0.1Very Low | —None |
| VISIBILITY/WIPER | 0.1Very Low | —None |
| SEAT BELTS | —None | 0.1Very Low |
| FORWARD COLLISION AVOIDANCE | —None | 0.1Very Low |
| BACK OVER PREVENTION | —None | 0.1Very Low |
| LANE DEPARTURE | —None | —None |
| VISIBILITY | —None | —None |
Complaints per 10,000 units sold, aggregated across all tracked model years from NHTSA owner reports.
Which Is Cheaper to Maintain: Lexus RX or Mercedes-Benz GLC?
How Does Lexus RX vs Mercedes-Benz GLC Reliability Compare by Year?
| Year | Lexus RX | Mercedes-Benz GLC | Edge |
|---|---|---|---|
| 2024 | 85/1009R / 48C | 72/1007R / 20C | Lexus RX |
| 2023 | 85/1005R / 45C | 67/10011R / 57C | Lexus RX |
| 2022 | 90/1000R / 35C | 73/1002R / 51C | Lexus RX |
| 2021 | 86/1005R / 209C | 68/1009R / 55C | Lexus RX |
| 2020 | 86/1005R / 130C | 64/10036R / 143C | Lexus RX |
| 2019 | 82/1009R / 166C | 68/10028R / 119C | Lexus RX |
| 2018 | 85/1003R / 87C | 65/10015R / 95C | Lexus RX |
| 2026(predicted) | 84/100(predicted) | 71/100(predicted) | Lexus RX |
Best years to cross-shop: The 2022 Lexus RX scored 90/100 and the 2022 Mercedes-Benz GLC scored 73/100 — these represent the strongest model years in our tracking range.
Who Should Buy the Lexus RX vs the Mercedes-Benz GLC?
Lexus RX vs Mercedes-Benz GLC: Common Questions
- Is the Lexus RX more reliable than the Mercedes-Benz GLC?
- Based on our data, the Lexus RX is more reliable with an average score of 85/100 compared to 68/100. That's a significant difference worth considering.
- Which has more recalls, the Lexus RX or the Mercedes-Benz GLC?
- The Mercedes-Benz GLC has more recalls (110) compared to the Lexus RX (42). 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 Lexus RX or the Mercedes-Benz GLC?
- Adjusted for sales volume, the Mercedes-Benz GLC has a lower complaint rate at 7.1 per 10,000 sold versus 7.5 for the Lexus RX. This per-sales normalization gives a fairer comparison than raw totals.
Related Reliability Comparisons
More Lexus RX 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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