2021 Acura NSX Reliability ReportA- grade · low risk · system-by-system breakdown
Quick Facts · 2021 Acura NSX
- The system most likely to surface first: hybrid system inverters & control modules (critical severity).
- No active NHTSA safety recalls on record — a clean recall slate for the 2021 model year.
- Scores roughly in line with adjacent Acura NSX years — consistency that often signals a stable platform generation.
Is the 2021 Acura NSX Worth Buying?
The 2021 Acura NSX represents a remarkably reliable entry into the exotic supercar segment, blending Honda's proven engineering with cutting-edge hybrid performance. While its inherent complexity demands specialized care, owners can confidently expect a robust platform with substantially fewer major headaches than many of its European rivals. This is a supercar you can drive often without constant worry.
The 2021 Acura NSX is an exceptional choice for those seeking exotic performance coupled with a level of reliability and usability rarely found in this segment. Its sophisticated hybrid powertrain is remarkably robust, making it a supercar you can confidently drive regularly. With diligent maintenance and an underst…
Best Model Years
2019-2022 (post-facelift models with suspension/software refinements)
Years to Avoid
None specifically, but ensure early 2017-2018 models have received all factory software updates and TSBs.
Biggest Strengths
- Honda/Acura's renowned build quality and engineering prowess
- Robust powertrain components (engine, DCT)
- Advanced hybrid system with strong factory support
What Tends to Fail First on the 2021 Acura NSX
The systems that tend to fail first on the 2021 Acura NSX, with the typical mileage window when each becomes a concern. Detailed repair-cost ranges and exact what-to-check inspection notes are in the full report.
While generally robust, the high-voltage inverters and complex control modules managing the hybrid powertrain and electric motors represent the most technologically intricate components. Failures are rare but extremely costly, often requ…
The 3.5L V6 engine utilizes twin turbochargers operating under high heat and pressure. Issues such as wastegate actuator problems, oil line leaks, or premature turbo bearing wear can occur, particularly if oil change intervals are neglec…
The electronically controlled adaptive suspension system provides superb handling but contains complex components. Leaks from the individual damper units or issues with the control module can lead to compromised ride quality and require…
2021 Acura NSX Mileage Danger Zones
The mileage windows when the 2021 Acura NSX most commonly needs attention. Plan ahead, budget accordingly, and inspect before you cross each threshold.
Low Risk Zone
At this mileage, the NSX is typically well past its break-in period, with any initial manufacturing quirks usually addressed under warranty. It's a prime time for smooth, reliable performance, but prepare for upcoming routine maintenance.
Maintenance Zone
This mileage marks a point where more significant preventative maintenance items come due. Proactive replacement of fluids and inspection of critical systems will mitigate future risks. Expect higher costs for these services.
Elevated Risk Zone
Beyond 90,000 miles, the NSX enters a phase where wear-and-tear items for its complex systems may begin to surface. While still robust, the high-voltage hybrid battery's overall health should be closely monitored, and turbocharger integr…
High Risk Zone
At this extensive mileage, the probability of encountering major component wear increases significantly. While the core engine and transmission are likely still strong, the original hybrid battery pack or other high-voltage components ma…
2021 Acura NSX Ownership Cost Outlook
What it typically costs to keep the 2021 Acura NSX on the road. Full 5-year cost-of-ownership projection and major-failure-risk forecast are in the report.
Annual Maintenance
$1,000-2,500 (standard service, higher with specialty fluids/spark plugs)
Moderate Repairs
$1,500-5,000 occasionally (e.g., sensor, minor turbo repair, damper replacement)
How Long Does the 2021 Acura NSX Last?
Consistent, documented maintenance by an Acura-certified technician is the single most critical factor in ensuring the NSX's long-term reliability. Do not defer or skip any recommended service, especially for the DCT and hybrid system.
What 2021 Acura NSX Owners Actually Say
What Owners Love
- Exhilarating, accessible performance with daily drivability
- Unique hybrid powertrain provides instant torque and great handling
- Remarkably reliable for an exotic supercar segment
- High build quality and comfortable interior for spirited driving
Common Frustrations
- Infotainment system feels dated compared to current luxury vehicles
- Limited storage space, both inside and in the trunk
- Fuel economy is only average despite being a hybrid
- High cost of specialty parts and dealer servicing
Who Should Buy the 2021 Acura NSX?
Best For
- Enthusiasts seeking a reliable, daily-drivable supercar
- Drivers who appreciate cutting-edge hybrid technology and all-wheel-drive performance
- Individuals who value build quality and refinement over raw, analog driving feel
Not Ideal For
- Budget-conscious buyers looking for low running costs
- DIY mechanics without specialized hybrid diagnostic tools and training
How the 2021 Acura NSX Compares to Rivals
The NSX stands out as one of the most reliable and usable supercars on the market, blending Japanese engineering precision with cutting-edge hybrid technology. It offers an unparalleled balance of performance and long-term ownership confidence compared to its more temperamenta…
More Reliable Than
- McLaren 570S/720S (significantly higher maintenance, more frequent electrical issues)
- Ferrari 458/488 (often more temperamental, higher service costs, less daily drivable)
- Lamborghini Huracán (more aggressive wear items, often less practical for daily use)
Comparable To
- Porsche 911 Turbo S (similar blend of performance and daily usability, high build quality)
- Audi R8 V10 (similar reliability for its conventional powertrain, slightly less complex)
2021 Acura NSX Recall History
No active NHTSA safety recalls on file for the 2021 Acura NSX. Always verify with your VIN atnhtsa.gov.
What breaks on the 2021 Acura NSX?
Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.
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Other Acura NSX Years to Consider
Compare KeepScores across nearby years of the Acura NSX. Click any year for its full report.
2021 Acura NSX Alternatives
Similar class, similar year range — ranked by KeepScore.
Relevant Products for Your 2021 Acura NSX
Parts and accessories matched to your 2021 Acura NSX
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Frequently Asked Questions
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