Checking Coolant Level

Just a quick tip on checking the car’s coolant level. While straightforward, it can be difficult actually seeing the coolant inside the tank, due to the tank’s opacity.

And for those who don’t know the location of the overflow tank, it is below the left (driver side) engine cover. Just pull it up and it will pop off.

You can try to transilluminate the tank, and that can work, but it is still difficult to see the coolant level.

A better way is to remove the cap and shine a flashlight into the tank. This obviously has to be done when the engine is cold.

The result is a much clearer view of the coolant level.

Total Sales By Color

US NSX Color Mix
Valencia Red Pearl 18%
130R White 18%
Berlina Black 18%
Casino White Pearl 13%
Nouvelle Blue Pearl 12%
Curva Red 10%
Source Silver Metallic 9%
Nord Grey Metallic 3%
Thermal Orange Pearl 0%

Global NSX Color Mix
Valencia Red Pearl 21%
130R White 19%
Casino White Pearl 15%
Berlina Black 14%
Nouvelle Blue Pearl 11%
Curva Red 10%
Source Silver Metallic 7%
Nord Grey Metallic 3%
Thermal Orange Pearl 0%

Replacing Twin Motor Unit Fluid

The twin motor unit fluid is replaced by the maintenance minder’s interval (there isn’t a specific mileage because it is determined by use). The only fluid recommended to be changed based on time is engine oil (once a year, regardless of mileage) and brake fluid (every three years).

First maintenance codes after one year are AB6 . 6 = twin motors

Contributor: René Koos

Technical: Sound System

Report from the audio front lines…

1) The factory sub signal has a 50Hz low pass filter on it. Midbass information has to be recovered from the door speaker signals.

2) The amplifier has some kind of protection mode for the door speakers where it lowers the whole system volume upon the detection of sustained mid bass content.

3) The car is actually *too well sealed* to support the airflow requirements of an upsized subwoofer when the windows are up. The seals between the doors and the pillars, and other parts of the interior, are so good that the constant air pressure pushing back on the subwoofer is substantial. This may explain both the tuning of the factory sub, and the protection mode… pushing against high air pressure for sustained durations could cause amplifier overheat.

Stereo shop and system tuner (who have plenty of experience with other Honda/Acura systems including the ELS ones) were scratching their heads for a while until this picture all came together.

Contributor: ‎Ben Englert‎

Winter Storage Note

I put my NSX in winter storage on Nov 15th, 2017. I connected the OEM charger (CTEK) every two weeks to top up the 12 V battery. I started my NSX today after 2 1/2 months of sitting. The EV battery was at about 85% so hadn’t lost much in 2 1/2 months. The car started instantly and ran smoothly. Put it in Sport Plus and the EV battery was fully charged in about 5 minutes. I think once the EV battery is fully charged it will last 6 months. As usual Honda is being conservative recommending a 30 minute run every 90 days.

Submitted by Jim Cross

Identification Numbers

There are several numbers that will identify your NSX.  The most well-known is the VIN (Vehicle Identification Number).  In addition, there are identification numbers for the engine, the three electric motors, and the transmission.  There is also a special Serial Number unique to each car.


The VIN is located in three areas:  The base of the windshield on the driver’s side, on the floor behind the passenger seat, and on the certification label in the driver’s side door jamb.

The VIN is a unique, standardized code that identifies each vehicle.  The format can vary depending on country.

Using mine as an example, here is what it can tell you:

19U NC1B0 9 H Y 800116

First three characters represents the World Manufacturer Identifier, in this case 19U represents Acura.  In addition, the first character indicates country of manufacture, in this case 1 is the United States.

The next five characters is the vehicle description.  NC1 is the chassis code of the second generation NSX.

The ninth character is a check digit.

The tenth character is the model year.  H=2017, J=2018, K=2019, L=2020.  Note that the letters ‘I’, ‘O’, and ‘Q’ are not used in the VIN.  In addition, the letters ‘U’, ‘Z’ and number ‘0’ are not used for the year digit.

The eleventh character is the plant code.  Y presumably represents the Performance Manufacturing Center.

The last 6 characters is the sequential number.  Canadian market cars start with 8, while US market cars start with 0.  In this case, this is the 116th car built for the Canadian market for model year 2017.

Serial Number

The serial number is located on the rear engine cover.  Every new NSX has a unique serial number based on build order regardless of market, which allows the owner to know exactly when in the build sequence his or her car was built.  So, for example, a serial number of 100 indicates it was the 100th vehicle to be built. Unlike the sequential portion of the VIN, it does not reset each year and does not repeat. The serial number will be continuous until production of the current generation ends. Except for the very early builds, the sequential portion of the VIN and the serial number most likely won’t match.

Engine/Transmission/Motor Numbers

These are located in the following areas:

Certification Label

Located in the driver’s side door jamb, it contains some useful information.  In addition to the VIN, it also shows the vehicle’s build date and paint code.

Paint Codes

  • 130R White:  NH-854
  • Casino White Pearl:  NH-839P
  • Source Silver Metallic:  NH-837M
  • Valencia Red Pearl:  R-556P
  • Curva Red:  R-559
  • Nord Grey Metallic:  G-544M
  • Nouvelle Blue Pearl:  B-605P
  • Berlina Black:  NH-547

The paint code on the certification label may also have an extra suffix that indicates the interior color:

  • Ebony (black):  No suffix
  • Red:  X
  • Orchid (Seacoast in Canada):  V
  • Saddle:  Z


Factory Options

2017-18 NSX

Exterior Colors:

Interior Colors:

  • Standard: Ebony
  • Optional (requires Semi-Aniline Leather / Alcantara or Semi-Aniline Full Leather Power Seats): Orchid (Ivory), Saddle (Tan), or Red


  • Standard: Milano Leather / Alcantara (Ebony)
  • Optional: Semi-Aniline Leather Power Seats (Orchid, Red) / Alcantara or Semi-Aniline Full Leather Power Seats (Orchid, Saddle, Red)


  • Standard: Signature Y-Spoke Wheels
  • Optional: Exclusive Interwoven Wheels, Machined, Exclusive Interwoven Wheels, Painted, or Exclusive Interwoven, Polished


  • Standard: Iron Rotors with Black Calipers
  • Optional: Carbon-Ceramic Rotors with Silver, Black, or Red Calipers

Exterior Package:

  • Standard: Exterior Sport Package
  • Optional: Carbon Fiber Sport Package (carbon fiber front chin spoiler, rocker panel inserts, rear diffuser panel)

Rear Spoiler:

  • Standard: Body Color Rear Decklid
  • Optional: Carbon Fiber Rear Decklid Spoiler

Engine Cover:

  • Standard: NSX Engine Cover (plastic)
  • Optional: Carbon Fiber Engine Cover (carbon fiber)


  • Standard: Black Cloth
  • Optional: Black Alcantara

Interior Package:

  • Optional: Carbon Fiber Interior Sport Package

Technology Package:

  • Standard: Premium Audio
  • Optional: ELS Studio Audio + Tech or ELS Studio + Tech + SiriusXM


  • Standard: Black Aluminum
  • Optional: Black Aluminum with SiriusXM Antenna, Carbon Fiber, or Carbon Fiber with SiriusXM Antenna


  • Battery Charger Kit
  • Wheel Bolt Lock
  • Illuminated Door Sill Trim
  • Car Cover
  • Cargo Net
  • Carbon Fiber Interwoven Wheel Trim

Factory Interior & Exterior Colors

2017-18 NSX

Exterior Colors:

  • Standard: Curva Red, 130R White, Berlina Black
  • Optional Finish: Casino White Pearl, Nord Grey Metallic, Source Silver
  • Optional Andaro Finish: Nouvelle Blue Pearl, Valencia Red Pearl

Curva Red

Berlina Black

130R White
Casino White Pearl
Nord Grey Metallic
Source Silver Metallic
Blue Nouvelle Pearl
Valencia Red Pearl

Interior Colors:

  • Standard: Ebony
  • Optional (requires Semi-Aniline Leather / Alcantara or Semi-Aniline Full Leather Power Seats): Orchid (Ivory), Saddle (Tan), or Red.