2020 Acura NSX Hybrid Complete Service & Maintenance Schedule

The 2020 Acura NSX is a hybrid supercar combining a 3.5L Twin-Turbo V6 (engine code JNC1) with a three-motor Sport Hybrid SH-AWD system. This guide provides the complete factory maintenance schedule based on the official 2020 Acura NSX Owner's Manual, using the Maintenance Minder system .

> HIGH VOLTAGE SAFETY WARNING: The NSX is a hybrid vehicle containing high-voltage components (orange wiring harness, lithium-ion battery). Do not touch these components. High voltage service should be performed by trained technicians at authorized facilities. Call ahead to confirm high voltage service capability before booking .

Key Takeaways

• The NSX uses a Maintenance Minder system, NOT fixed odometer intervals. The vehicle's computer analyzes driving habits (speed, temperature, time) and displays specific alphanumeric codes when service is due. There is no traditional "every 30,000-mile" service schedule .
• The NSX has a timing chain, NOT a belt. Unlike classic NSX models that required costly timing belt replacements every 7 years/105,000 miles, the 2020 NSX utilizes a maintenance-free timing chain designed to last the engine's lifetime under normal conditions .
• The NSX has severe service intervals for its hybrid components. If you drive in mountainous areas, track the car, or operate at very low speeds:
• Transmission fluid: Change every 20,000 miles (32,000 km)
• Twin Motor Unit (TMU) fluid: Change at 7,500 miles, then every 15,000 miles
• Brake fluid is time-sensitive. Independent of the Maintenance Minder, replace brake fluid every 3 years regardless of mileage .
• Acura recommends using only specified fluids: 0W-40 engine oil, Acura ATF DW-1 for the DCT and TMU, and DOT 4 brake fluid .
• You can service your NSX at independent shops. Service at a dealer is not mandatory to keep your warranties in effect, though high voltage work requires specialized training .

Engine & Drivetrain Specifications

The 2020 Acura NSX features a sophisticated hybrid powertrain.

The "No Timing Belt" Advantage

One of the biggest maintenance differences between the 2020 NSX and classic NSX models is the valvetrain. The classic NSX required a timing belt change every 7 years or ~105,000 miles, a labor-intensive job costing thousands of dollars.

The 2020 NSX uses a timing chain . According to Acura:

> *"Unlike timing belts made of rubber materials, timing chain replacement is not required. However, if an engine is not properly maintained, a timing chain may stretch and skip position, negatively impacting drive quality of your vehicle."*

Proper maintenance of engine oil, particularly oil level, helps prevent timing chain issues. When planning your long-term budget, you can omit the "Timing Belt Replacement" concern entirely .

Understanding the Maintenance Minder System

The 2020 Acura NSX does not have a traditional fixed‑mileage maintenance schedule. Instead, Acura employs a Maintenance Minder system that monitors vehicle operating conditions and calculates when service is required .

How the System Works

When the engine oil life reaches 15%, the system displays a service message on the driver information interface. The system displays a Main Item (A or B) followed by Sub‑Item numbers (1 through 6) .

How to Check Maintenance Minder

To display Maintenance Minder information :

1. Set the power mode to ON (do not start the engine)
2. Navigate through the driver information interface to the Maintenance Minder screen
3. The oil life percentage and due maintenance codes will display

Independent (Time-Based) Requirements (Outside the Minder)

The following requirements apply independently of the Maintenance Minder system and must be tracked manually :

Maintenance Minder Codes

The Maintenance Minder communicates service needs through alphanumeric codes. A code consists of a main item (A or B) optionally followed by sub‑item numbers .

Main Item Codes (A, B)

Sub-Item Codes (1-6)

Example Code Combinations

Engine Oil Change Guidance

Factory Requirements

How to Check Oil Level

The 2020 NSX features an Oil Level Check Assist display in the driver information interface :

1. Display the oil level check assist display on the driver information interface
2. Warm up the engine until all bars of the warm-up gauge are lit
3. Park on level ground in (P
4. Idle the engine until all bars of the idle time gauge are lit
5. When "Ready to Check Oil Level" appears, change the display
6. Open the hatch and remove the right-side engine compartment cover
7. Remove the dipstick (orange), wipe clean, reinsert, then remove again
8. Level should be between the upper and lower marks

Owner Guidance

• The recommended oil is 0W-40 full synthetic
• Your Acura does not require any oil additives
• Oil consumption can be up to 1.05 US quarts per 625 miles (1 liter per 1000 km) depending on driving conditions

Transmission & Clutch Fluid Service (9-Speed DCT)

The 2020 NSX is equipped with a 9-speed Dual-Clutch Transmission (9DCT).

Severe Condition Requirement – Important for NSX Owners:

From the 2020 NSX Owner's Manual :

> *"Driving in mountainous areas at very low vehicle speeds results in higher transmission temperature. This requires transmission fluid and clutch fluid changes more frequently than recommended by the Maintenance Minder. If you regularly drive your vehicle under this condition, have the transmission fluid and clutch fluid changed every 20,000 miles (32,000 km)."*

Critical Warning: Do NOT mix Acura ATF DW-1 with other transmission fluids. Using a transmission fluid other than Acura ATF DW-1 may adversely affect operation and durability, and damage the transmission. Damage caused by using non-equivalent fluid is not covered by warranty .

Twin Motor Unit (TMU) Service

The NSX's Sport Hybrid SH-AWD system uses a Twin Motor Unit (TMU) for the front wheels.

Severe Condition Requirement – Critical for Track-Driven NSXs:

From the 2020 NSX Owner's Manual :

> *"Driving in mountainous areas at very low vehicle speeds results in higher level of mechanical (Shear) stress to fluid. This requires Twin Motor Unit fluid changes more frequently than recommended by the Maintenance Minder. If you regularly drive your vehicle under these conditions, have the Twin Motor Unit fluid changed at 7,500 miles (12,000 km), then every 15,000 miles (24,000 km)."*

Critical Warning: Do NOT mix Acura ATF DW-1 with other transmission fluids. Using non-equivalent fluid can damage the Twin Motor Unit and is not covered by warranty .

Engine Coolant Service

Owner Guidance:

• Do not use generic green coolant. Honda/Acura Type 2 coolant is specifically formulated for aluminum engine components .
• Do not add straight antifreeze or water; the factory coolant is premixed.
• Check the coolant level in the reserve tank when the engine and radiator are cold .
• The inverter coolant should be checked regularly and replaced by an authorized Acura NSX dealer .

Brake Fluid Replacement

Why it's critical: The NSX uses an advanced electro-hydraulic braking system with regenerative braking. Brake fluid is hygroscopic – it absorbs moisture from the air over time, lowering its boiling point and causing potential brake fade under hard braking .

Owner Guidance: A complete system flush is required. Topping off is not sufficient. Using non-Acura brake fluid can cause corrosion and decrease system longevity .

> From the Owner's Manual: *"Independent of the Maintenance Minder information, replace the brake fluid every 3 years."*

Valve Clearance & Fuel System Inspection

Owner Guidance: The 3.5L twin-turbo V6 uses mechanical lifters (not hydraulic). While the manual states "adjust only if noisy," many Acura specialists recommend checking clearances at major service intervals regardless of noise – especially on turbocharged engines that see high thermal stress.

Drive Belt & Air Filters

Owner Guidance: Both filters can be replaced without special tools. A clogged engine air filter can reduce twin-turbo performance on the NSX's V6.

Severe Driving Conditions Summary

The following severe condition requirements are explicitly stated in the 2020 NSX Owner's Manual :

Severe Conditions – Quick Reference

If you track your NSX or drive in mountainous areas:

• Transmission fluid + clutch fluid: Change at 20,000 miles (not when Minder says)
• TMU fluid: Change at 7,500 miles, then every 15,000 miles
• This is significantly more frequent than the standard Maintenance Minder schedule

Scheduled Maintenance Summary

Since the NSX uses the Maintenance Minder system, always follow your vehicle's displayed codes. The table below shows reference intervals :

Resetting the Maintenance Minder Display

After performing the required maintenance service, the engine oil life display must be reset. Failure to reset results in the system showing incorrect maintenance intervals. The dealer will reset the display after service. If someone else performs maintenance, reset it yourself using the vehicle's settings menu .

Monthly & Pre-Drive Checks

As outlined in the 2020 NSX Owner's Manual, perform these checks regularly:

Service at Independent Shops – Important

Acura states that service at a dealer is not mandatory to keep your warranties in effect. Maintenance may be performed by any qualified service facility .

However, for the 2020 NSX hybrid:

• Low and medium voltage services (oil changes, brakes, filters, tires, alignments) can be performed by independent shops like Firestone .
• High voltage services (removing the high voltage safety plug, servicing high voltage cables, power inverter, electric motors, high voltage battery pack) require specialized training. Call ahead to confirm which high voltage services are offered .

Keep all receipts as proof of completion. The official 2020 Acura NSX Owner's Manual (Part #31T6N630) is available from Helm Inc. for $50.00 .

Long-Term Ownership Summary for the 2020 NSX

• No timing belt replacement EVER – the NSX uses a timing chain. Focus your budget on the high-performance fluids, not belt services .
• The Twin Motor Unit (TMU) fluid is a critical NSX-specific service. If you drive in mountains or on track, follow the severe interval: 7,500 miles, then every 15,000 miles .
• If you track your NSX, use the severe schedule :
• Transmission fluid + clutch fluid: every 20,000 miles
• Twin Motor Unit (TMU) fluid: 7,500 miles, then every 15,000 miles
• Brake fluid is time-sensitive, not mileage-sensitive. Independent of the minder, replace it every 3 years .
• Use only specified fluids :
• Engine oil: SAE 0W-40 full synthetic
• DCT clutch fluid: Acura ATF DW-1 (do not mix)
• TMU fluid: Acura ATF DW-1 (do not mix)
• Brake fluid: Honda DOT 4 (DOT 5 is NOT compatible)
• The 1.3 kWh lithium-ion battery has no scheduled maintenance interval. However, degradation is possible over time (8-10+ years). This is a long-term consideration for NSX ownership.
• Keep meticulous maintenance records. Save all receipts, especially for TMU fluid and transmission services. These records add significant value to this limited-production supercar.
• The 2020 NSX Owner's Manual is the final authority. If there is a discrepancy between this guide and your vehicle's display, follow the vehicle. A printed copy is available from Helm Inc. (Part #31T6N630, $50.00) .