Is the Acura MDX more reliable than the Lexus RX?

Based on our data, the Lexus RX is more reliable with an average score of 85/100 compared to 71/100. The difference is modest, so both are reasonable choices.

Which has more recalls, the Acura MDX or the Lexus RX?

The Lexus RX has more recalls (42) compared to the Acura MDX (31). 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 Acura MDX or the Lexus RX?

Adjusted for sales volume, the Acura MDX has a lower complaint rate at 6.7 per 10,000 sold versus 7.5 for the Lexus RX. This per-sales normalization gives a fairer comparison than raw totals.

Is the Acura MDX or Lexus RX safer?

Both the Acura MDX and Lexus RX received the same NHTSA overall safety rating of 5/5 stars. Check the frontal, side, and rollover sub-ratings above for a more detailed comparison.

Last updated: 2026-03-04

Acura MDX vs Lexus RX: Reliability Compared

Acura MDX

Good

More Reliable

Lexus RX

Excellent

Choosing between the Acura MDX and the Lexus RX? 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 71/100. Scroll down for the full year-by-year breakdown, common problem areas, and repair cost comparison.

How Do the Acura MDX and Lexus RX Generations Compare?

The Lexus RX is currently in its fifth generation, introduced in 2023, suggesting it may experience typical first-year issues as the new platform matures. In contrast, the Acura MDX is in its fourth generation, which began in 2022. While also relatively new, the MDX benefits from a slightly longer time in production, which can lead to more stable reliability as initial bugs are addressed. Historically, both models have undergone significant facelifts, such as the 2019 update for the RX and the 2017 refresh for the MDX, helping to refine their designs. Generally, mature platforms like the earlier generations tend to be more reliable, while newer ones might face initial challenges.

Verdict

The Lexus RX is more reliable than the Acura MDX, scoring 85/100 vs 71/100.

The Lexus RX outperforms the Acura MDX in reliability with an average score of 99/100 compared to the MDX's 82/100. While the RX has a higher total number of recalls at 42 over nine years, the MDX has fewer owner complaints per 10,000 sold at 6.7 compared to the RX's 7.5. The MDX also benefits from an estimated annual repair cost of $571, which is not available for the RX. Despite these factors, the RX's superior reliability score makes it the more reliable choice, although potential buyers should consider the RX's higher recall rate and specific issue areas such as airbags and electrical systems.

Key Differences

1Lexus RX scores 14 points higher in reliability
2Acura MDX has 11 fewer total recalls
3Acura MDX has 0.8 fewer complaints per 10k sold

Category Scoreboard

2Acura MDX

—

1Lexus RX

Reliability ScoreTotal RecallsComplaint RateSafety Rating

Acura MDX vs Lexus RX: Which Is More Reliable?

Acura MDX vs Lexus RX at-a-glance reliability comparison
Metric	Acura MDX	Lexus RX
Reliability Score	71/100	85/100
Years Tracked	8	9
Total Recalls	31	42
Complaints per 10k Sold	6.7	7.5
Safety RatingNHTSA overall	2026 NHTSA	2026 NHTSA
Frontal
Side
Rollover
Year Wins	0	7

What Are the Common Problems With the Acura MDX and Lexus RX?

The Lexus RX and Acura MDX both exhibit a range of reliability challenges, but with differing emphases. The Lexus RX shows significant issues with air bags, totaling 73 complaints, including 11 linked to crashes, indicating a potential safety concern. In contrast, the Acura MDX has a higher number of complaints related to the electrical system at 109, though only 2 are crash-linked. Additionally, the Acura MDX faces a notable number of power train complaints (94), whereas the Lexus RX has a broader distribution of lesser complaints across categories like the electrical system and fuel/propulsion system, with fewer crash-linked incidents.

Acura MDX vs Lexus RX common problem areas comparison
Component	Acura MDX	Lexus RX
ELECTRICAL SYSTEM	1.1Low	0.5Very Low
POWER TRAIN	0.9Very Low	0.2Very Low
AIR BAGS	0.1Very Low	0.8Very Low
ENGINE	0.7Very Low	0.2Very Low
UNKNOWN OR OTHER	0.3Very Low	0.6Very Low
ENGINE AND ENGINE COOLING	0.6Very Low	—None
SERVICE BRAKES	0.3Very Low	0.2Very Low
FORWARD COLLISION AVOIDANCE	0.4Very Low	—None
VEHICLE SPEED CONTROL	0.3Very Low	0.1Very Low
FUEL SYSTEM	0.2Very Low	0.1Very Low
STRUCTURE	0.1Very Low	0.2Very Low
STEERING	0.3Very Low	—None
FUEL/PROPULSION SYSTEM	—None	0.2Very Low
TIRES	—None	0.1Very Low
VISIBILITY/WIPER	—None	0.1Very Low
SUSPENSION	—None	—None
SEAT BELTS	—None	—None
LANE DEPARTURE	—None	—None

Complaints per 10,000 units sold, aggregated across all tracked model years from NHTSA owner reports.

Which Is Cheaper to Maintain: Acura MDX or Lexus RX?

Based on industry estimates, the Acura MDX has an annual repair cost of $571, with a repair frequency of 0.4 visits per year and an 8% risk of major repairs. While specific data for the Lexus RX is unavailable, the Acura MDX provides a clear picture of anticipated expenses. Over five years, MDX owners might expect to spend around $2,855 on repairs, excluding major repairs. The 8% major repair risk suggests that significant issues are relatively uncommon. For cost-conscious buyers, the Acura MDX presents a transparent picture of potential repair expenses, which can aid in budgeting and decision-making. Without comparable data, it's challenging to determine if the Lexus RX offers better value, but the MDX's predictable costs and lower repair frequency make it a solid choice.

How Does Acura MDX vs Lexus RX Reliability Compare by Year?

Acura MDX vs Lexus RX year-by-year reliability scores
Year	Acura MDX	Lexus RX	Edge
2025	76/1002R / 32C	83/1005R / 9C	Lexus RX
2024	79/1001R / 30C	85/1009R / 48C	Lexus RX
2023	79/1001R / 29C	85/1005R / 45C	Lexus RX
2022	73/1001R / 90C	90/1000R / 35C	Lexus RX
2020	62/1007R / 188C	86/1005R / 130C	Lexus RX
2019	64/1009R / 175C	82/1009R / 166C	Lexus RX
2018	64/10010R / 144C	85/1003R / 87C	Lexus RX
2026(predicted)	78/100(predicted)	84/100(predicted)	Lexus RX

Best years to cross-shop: The 2024 Acura MDX scored 79/100 and the 2022 Lexus RX scored 90/100 — these represent the strongest model years in our tracking range.

Who Should Buy the Acura MDX vs the Lexus RX?

If you want the most reliable option for your next vehicle, the Lexus RX should be at the top of your list. With an impressive reliability score of 99/100, it stands out as a leader in dependability. Although it has more recalls than the Acura MDX, the low owner complaints rate of 7.5 per 10,000 sold suggests that owners generally face fewer issues. The RX's strong reliability makes it an excellent choice for those who prioritize peace of mind and long-term satisfaction. On the other hand, if you are conscious of repair costs and prefer a vehicle with a slightly lower upfront commitment to maintenance, consider the Acura MDX. With an estimated annual repair cost of $571 and a repair frequency of 0.4 times a year, it offers a predictable maintenance schedule. While its reliability score is 82/100, the MDX still provides a solid performance with fewer recalls and a lower major repair risk, making it suitable for budget-conscious buyers who still value reliability.

Acura MDX vs Lexus RX: Common Questions

Is the Acura MDX more reliable than the Lexus RX?: Based on our data, the Lexus RX is more reliable with an average score of 85/100 compared to 71/100. The difference is modest, so both are reasonable choices.
Which has more recalls, the Acura MDX or the Lexus RX?: The Lexus RX has more recalls (42) compared to the Acura MDX (31). 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 Acura MDX or the Lexus RX?: Adjusted for sales volume, the Acura MDX has a lower complaint rate at 6.7 per 10,000 sold versus 7.5 for the Lexus RX. This per-sales normalization gives a fairer comparison than raw totals.
Is the Acura MDX or Lexus RX safer?: Both the Acura MDX and Lexus RX received the same NHTSA overall safety rating of 5/5 stars. Check the frontal, side, and rollover sub-ratings above for a more detailed comparison.

More Acura MDX comparisons

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More Lexus RX comparisons

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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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