Acura MDX vs Lexus Rx
Head-to-head reliability comparison from 5,508real NHTSA consumer complaints. Year-by-year breakdown, shared problems, crash & fire rates.
Which is more reliable, Acura MDX or Lexus Rx?
Verdict from 5,508 NHTSA complaints
Lexus Rx wins this comparison overall. Lexus Rx comes out ahead on 3 of 4 reliability metrics — including a 657% lower complaint rate. The Acura MDX edges ahead on crash-involvement rate.
Head-to-Head Metrics
Lower is better on every metric. Bar length = relative magnitude. ✓ = winner.
Lexus Rx wins by 657%
Acura MDX wins by 138%
Lexus Rx wins by 11%
Lexus Rx wins by 457%
NHTSA Crash Test Ratings
Official NCAP star ratings — government crash test data. Most recent rated model year.
Acura MDX
2026 model yearLexus Rx
2025 model yearNot yet rated by NHTSA NCAP.
Source: NHTSA New Car Assessment Program (NCAP). Lower star = higher injury risk in that crash type.
Complaint Volume — Year by Year
Sales-volume data not available for both models — showing raw complaint counts. Higher-volume models will appear higher even when reliability is comparable.
Most Reported Problems
Top component complaints for each model. Identical bar lengths = both have the same recurring issue.
Year-by-Year Head-to-Head
Lower is better. Click either model column to see that year's full breakdown.
Frequently Asked Questions
Acura MDX vs Lexus Rx — the most common buyer questions, answered from NHTSA data.
Which is more reliable, the Acura MDX or the Lexus Rx?
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Lexus Rx wins this comparison overall. Lexus Rx comes out ahead on 3 of 4 reliability metrics — including a 657% lower complaint rate. The Acura MDX edges ahead on crash-involvement rate. Source: NHTSA Office of Defects Investigation via VinItel.
Should I buy a Acura MDX or a Lexus Rx?
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On reliability data alone, the Lexus Rx is the safer bet — but the actual condition of the specific car matters far more than the model average. Check the VIN of any vehicle you're considering for accident history, title issues, and odometer rollbacks.
What problems do the Acura MDX and Lexus Rx share?
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Top complaints for the Acura MDX: Transmission / Drivetrain, Engine Problems, Electrical Faults. Top complaints for the Lexus Rx: Engine Problems, Airbags, Brakes. Source: NHTSA via VinItel.
Which has fewer NHTSA complaints, the Acura MDX or the Lexus Rx?
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Across all model years, the Acura MDX has 4,312 NHTSA complaints and the Lexus Rx has 1,196. Normalized for sales volume (complaints per 10,000 vehicles sold), the Lexus Rx has the lower complaint rate. Raw counts can mislead — a 2× more popular model will naturally collect 2× more complaints. Detailed normalized comparison: vinitel.com/stats/nhtsa-complaints/compare/acura/mdx/vs/lexus/rx
Which is safer in a crash, the Acura MDX or the Lexus Rx?
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Crash-involvement rate from NHTSA complaints: Acura MDX 5.0% vs Lexus Rx 11.9% — the Acura MDX has the lower crash rate. NHTSA NCAP star ratings (frontal, side, rollover) for both models are also shown on the comparison page. Note: the per-VIN history matters more than the model average — a salvage-title car of any model carries higher crash exposure than the median.
Does the Acura MDX or the Lexus Rx have more fires?
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Fire-involvement rate based on NHTSA complaints: Acura MDX 2.00% vs Lexus Rx 1.80%. The Lexus Rx has the lower reported fire rate. Fire complaints are a relatively rare but important safety signal — they often correlate with electrical-system or fuel-system defects. Check specific recall campaigns at vinitel.com/stats/nhtsa-complaints/acura/mdx and vinitel.com/stats/nhtsa-complaints/lexus/rx
What years of the Acura MDX are worse than the Lexus Rx?
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The comparison page renders a year-by-year head-to-head table — for each model year (where both models have data), it shows complaint count or per-10K rate side by side and marks which model fares better that year. Buyers cross-shopping a specific model year should always check the year-level VinItel pages: vinitel.com/stats/nhtsa-complaints/acura/mdx/{year} and vinitel.com/stats/nhtsa-complaints/lexus/rx/{year}.
Where does this Acura MDX vs Lexus Rx comparison data come from?
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All complaint, crash, fire, and fatality data comes from the NHTSA Office of Defects Investigation (ODI) consumer-complaint database — the same source insurance regulators and the federal government use. NCAP star ratings come from NHTSA's New Car Assessment Program crash tests. Sales-volume normalization (per 10K sold) uses US annual vehicle sales. Data refreshes every 6 hours. Source: NHTSA via VinItel.
Related Reliability Comparisons
Other head-to-head matchups buyers cross-shopping the MDX or Rx also look at:
Comparison data refreshed 2026-05-04 from NHTSA Office of Defects Investigation.·Source: NHTSA ODI
A model average can't see the car you're buying.
Even the Lexus Rx has cars with hidden accidents, salvage titles, and odometer rollbacks. Check the VIN before you buy — full report $4.99 (vs. Carfax $44.99).
Deep-dive into either model: