What are the most common Acura NSX problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 1991-1999 Acura NSX has 4 documented issues. The most frequently reported are: Snap-ring transmission failure on 1991-1992 NSX (serial range J4A4-1003542 to J4A4-1005978), ALB/ABS modulator pump times out and pressure sensor fails on NA1 NSX (1991-1999), Climate control unit display pixel fade and dead buttons (1991-1999 NA1). Of these, 2 are rated critical and should be addressed promptly.
Is the Acura NSX reliable?
The 1991-1999 Acura NSX has 4 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 2 issues are rated critical: Snap-ring transmission failure on 1991-1992 NSX (serial range J4A4-1003542 to J4A4-1005978) and ALB/ABS modulator pump times out and pressure sensor fails on NA1 NSX (1991-1999). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Acura NSX problems?
Repair costs for known Acura NSX issues range from $25 to $7,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Snap-ring transmission failure on 1991-1992 NSX (serial range J4A4-1003542 to J4A4-1005978), typically costs $2,500-$7,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What year Acura NSX is the most reliable?
Reliability varies across model years of the Acura NSX. Based on documented issues, problems are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 1991-1999 Acura NSX with 4 documented issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports.
What is the 1991-1992 Acura NSX Snap-ring transmission failure on 1991-1992 NSX (serial range J4A4-1003542 to J4A4-1005978)?
A manufacturing defect in early NSX 5-speed manual transmissions cut the countershaft snap-ring groove inside the case slightly too wide. Under load the snap ring twists repeatedly until it shatters, releasing metal fragments into the gear set. The failure is limited to a specifi… Repairs typically run $2,500-$7,500. Severity: high.
What is the 1991-1999 Acura NSX ALB/ABS modulator pump times out and pressure sensor fails on NA1 NSX (1991-1999)?
The first-generation NSX uses an Anti-Lock Brake (ALB) hydraulic modulator with a high-pressure pump, accumulator, and pressure sensor. The pump is designed to charge the accumulator and then stop within 120 seconds. When internal O-rings dry and the pump can no longer build pres… Repairs typically run $105-$2,600. Severity: high.
What is the 1991-1999 Acura NSX Climate control unit display pixel fade and dead buttons (1991-1999 NA1)?
The NSX climate control unit (CCU) sits in the center console and uses an LCD display plus push-buttons to set temperature and fan. Over time the LCD pixels fade — typically starting at the top of the display and progressing down — until the temperature setting is unreadable. Sep… Repairs typically run $150-$1,000. Severity: medium.
What is the 1995-1999 Acura NSX Targa roof gaskets harden, wind noise increases and water leaks under heavy rain?
The NSX-T (T = Targa, optional from 1995) uses two rubber gaskets mounted on the Targa roof panel — one above each side window — plus seals around the panel perimeter that mate to the body when the roof is installed. The rubber dries and hardens with age and UV exposure, and wind… Repairs typically run $25-$1,200. Severity: low.
