The 2019 NSX is a complex twin-turbo hybrid supercar with three electric motors and a 9-speed dual-clutch transmission. While generally reliable for a low-production exotic, it suffers from specific powertrain vulnerabilities that can result in catastrophic failures and eye-watering repair bills.
Connecting Rod Bearing Failure Leading to Catastrophic Engine Damage
Occasional · high severityTypical onset: 25,000-60,000 mi
Symptoms: metallic knocking from engine bay especially under load, oil pressure warning light, sudden loss of power, metal shavings in oil during analysis
Fix: This is the nightmare scenario. Rod bearings wear prematurely, often from oil starvation during aggressive cornering or track use. Once they spin, you're looking at crankshaft damage, piston damage, and block scoring. Requires complete engine-out teardown. Short block replacement runs 60-80 hours labor, full rebuild with machine work 80-100 hours. Many owners opt for Acura reman engines at $35K-45K plus labor.
Estimated cost: $40,000-65,000
Fuel Pump Failure (Subject to Recall)
Common · high severitySymptoms: no-start condition, engine stumbling or cutting out under acceleration, intermittent stalling, fuel pressure codes P0087 or P0191
Fix: The low-pressure fuel pump assembly fails due to impeller deterioration. This was subject to NHTSA recall, but not all units were caught before failing. Pump is inside the tank, requiring tank drop and access panel removal. About 4-6 hours labor if covered under recall extension, otherwise you're buying the entire fuel pump module.
Estimated cost: $1,800-2,800
Transmission Oil Cooler Leaks
Occasional · medium severityTypical onset: 40,000-80,000 mi
Symptoms: transmission fluid puddles under vehicle, burnt smell from engine bay, transmission overheat warnings on dash, delayed or harsh shifts when hot
Fix: The 9-speed DCT oil cooler develops leaks at crimped seams or connections. Requires dropping undertray, draining trans fluid, and replacing cooler assembly. Factor in system flush and refill with Honda's specific DCT fluid. About 8-10 hours labor due to access constraints and bleeding procedure.
Estimated cost: $2,200-3,500
Transmission Mount Degradation
Common · low severityTypical onset: 30,000-70,000 mi
Symptoms: clunking when shifting from reverse to drive, vibration felt through cabin at idle, excessive driveline movement during hard acceleration, visible tearing in rubber mount
Fix: The rear transmission mount wears from the torque of three motors plus the V6. It's hydraulic-filled and expensive. Requires lift, drivetrain support, and precise alignment during installation. About 3-4 hours labor for the rear mount, which is the common failure point.
Estimated cost: $800-1,400
Battery Thermal Management System Issues
Rare · medium severityTypical onset: 50,000-90,000 mi
Symptoms: reduced electric-only range, hybrid battery warning light, cooling fan runs constantly, loss of Sport+ mode functionality
Fix: The lithium-ion battery pack has active cooling, and the coolant lines or pump can fail. This doesn't brick the car but severely limits hybrid performance. Diagnosis requires Honda HDS scan tool. Repair involves removing rear interior panels and battery pack access covers. Parts availability is poor. Labor alone runs 10-15 hours for pump/line replacement.
Estimated cost: $3,500-6,000
Head Gasket Seepage (Not Catastrophic Failure)
Occasional · low severityTypical onset: 60,000-100,000 mi
Symptoms: slight oil weepage at head/block junction, minor coolant consumption, white residue on coolant cap, passes combustion leak test but shows seepage on inspection
Fix: Not the blown head gasket scenario — more like minor seepage from factory torque specs. Often found during other services. If caught early and not mixing fluids, can be monitored. Full head gasket replacement is 40-50 hours labor due to packaging and turbo removal. Most techs recommend addressing only if consumption becomes measurable.
Estimated cost: $8,000-12,000
Buy only with comprehensive records, completed recalls, and a pre-purchase inspection by an Acura NSX-certified tech — the bearing failure risk makes this a gamble without warranty coverage.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.