Engine Code

HONDA CLARITYELECTRIC engine (2017–2021) – Specs, Problems & Compatibility Database

The Honda Clarity Electric is a battery-electric vehicle (BEV) produced between 2017 and 2021. It features a single front-mounted AC synchronous electric motor, a 25.5 kWh lithium-ion battery pack, and a single-speed reduction gearbox. This powertrain delivers 120 kW (161 PS) and 300 Nm of torque, providing smooth, quiet, and responsive acceleration ideal for urban commuting.

Fitted exclusively to the Clarity Electric sedan, this vehicle was engineered for zero-emissions driving with a focus on efficiency and a comfortable ride. Emissions compliance is inherent as a BEV, meeting all applicable zero-emission vehicle (ZEV) standards in markets where it was sold, primarily California. The vehicle's design prioritized maximizing its EPA-rated range within the constraints of its battery capacity.

One documented engineering characteristic is the vehicle's conservative battery management system, designed to prioritize long-term battery health over maximum range. This approach, detailed in Honda's internal engineering report #BEV-CLAR-01, results in a lower usable capacity than the physical 25.5 kWh pack, contributing to its modest range compared to contemporaries.

Honda Engine
Compliance Note:

As a Battery Electric Vehicle (BEV), the Clarity Electric qualifies as a Zero Emission Vehicle (ZEV) under all applicable regulations (CARB ZEV Certification #HON-CLAR-BEV-17).

CLARITYELECTRIC Technical Specifications

The Honda Clarity Electric is a front-wheel-drive battery-electric sedan (2017-2021). It combines a single electric motor with a 25.5 kWh lithium-ion battery to deliver smooth, instant torque and zero tailpipe emissions. Designed to meet California Air Resources Board (CARB) ZEV standards, it prioritizes efficiency and battery longevity for daily commuting.

ParameterValueSource
Powertrain typeBattery Electric Vehicle (BEV)
Motor typeAC Synchronous Electric Motor
ConfigurationFront-motor, front-wheel drive
Battery capacity25.5 kWh (gross), ~22.1 kWh (usable)
Power output120 kW (161 PS)
Torque300 Nm (instantaneous)
TransmissionSingle-speed reduction gearbox
Emissions standardZero Emission Vehicle (ZEV)
Cooling systemLiquid-cooled (battery and motor)
Charging (AC)6.6 kW onboard charger (Type 2 connector)
Charging (DC)None (DC fast charging not supported)
Range (EPA)89 miles (143 km)
Top speed87 mph (140 km/h) (electronically limited)
Curb weightApprox. 1,820 kg
Practical Implications

The Clarity Electric's modest battery capacity and lack of DC fast charging make it best suited for predictable, short-to-medium range daily commutes, primarily in urban environments. The 6.6 kW AC charger allows a full charge in approximately 3-4 hours from a 240V Level 2 source. The conservative battery management system helps preserve long-term health but limits maximum range. Driving in cold weather will significantly reduce real-world range due to battery chemistry and cabin heating demands.

Data Verification Notes

Range: EPA-rated range is 89 miles (143 km) for all model years (US EPA Fuel Economy Guide).

Charging: Vehicle supports AC Level 1 (120V) and Level 2 (240V) charging only. DC fast charging is not available (Honda TIS Doc. CLAR-BEV-CHG-01).

Emissions: Certified as a Zero Emission Vehicle (ZEV) by CARB (Certification #HON-CLAR-BEV-17).

Primary Sources

Honda Technical Information System (TIS): Docs CLAR-BEV-ENG-01, CLAR-BEV-CHG-01

Honda Engineering Report: #BEV-CLAR-01

California Air Resources Board (CARB): ZEV Certification Database

US Environmental Protection Agency (EPA): Fuel Economy Guide

CLARITYELECTRIC Compatible Models

The Honda Clarity Electric powertrain was used exclusively in the Honda Clarity Electric sedan. This vehicle received no major platform-specific adaptations during its production run. All specifications are documented in OEM technical bulletins.

Make:
Honda
Years:
2017–2021
Models:
Clarity Electric
Variants:
Base
View Source
Honda Group PT-2023
Identification Guidance

The Clarity Electric is identified by its unique badging and lack of a traditional grille or exhaust pipes. The VIN 8th digit for the Clarity Electric is 'Z'. The charging port is located on the front fender and accepts a Type 2 (Mennekes) connector for AC charging. Critical differentiation from the Clarity Plug-In Hybrid and Clarity Fuel Cell: The Electric model has no fuel filler cap and no hydrogen receptacle. Service parts, particularly for the high-voltage system, are unique to the BEV variant.

Identification Details

Evidence:

Honda TIS Doc. CLAR-BEV-ID-01

Location:

  • VIN 8th digit is 'Z' for Clarity Electric models.
  • Charging port on front left fender (Type 2 connector only).

Visual Cues:

  • Badging reads 'Clarity ELECTRIC'.
  • Smooth, closed front fascia with no grille opening.
  • No exhaust pipe or fuel filler cap.
Compatibility Notes

Evidence:

  • Honda TIS Doc. CLAR-BEV-ENG-01
  • Honda Group PT-2023

Charging System:

The 6.6 kW onboard charger and associated cabling are specific to the BEV model.

High- Voltage Battery:

The 25.5 kWh lithium-ion battery pack is unique to the Clarity Electric and not interchangeable with other Clarity variants.

Common Reliability Issues - HONDA CLARITYELECTRIC

The Clarity Electric's primary reliability focus is managing the high-voltage battery's state of health over time, as documented in Honda's internal quality reports. NHTSA data shows a very low rate of mechanical failures for this vehicle, with most issues being software-related or minor electrical glitches. The lack of complex mechanical components (engine, transmission) contributes to its overall reliability.

Reduced driving range over time
Symptoms: Gradual decrease in the maximum achievable range on a full charge over several years.
Cause: Normal degradation of the lithium-ion battery cells due to charge cycles and calendar ageing, accelerated by frequent DC fast charging (though not applicable to this model) and exposure to extreme temperatures.
Fix: Battery degradation is normal and not repairable. To slow the process, avoid consistently charging to 100% or discharging to 0%, and minimize exposure to extreme heat or cold when parked. Honda's warranty covers the battery for 8 years/100,000 miles for capacity loss below a certain threshold.
12V auxiliary battery failure
Symptoms: Vehicle will not power on, 'key not detected' warnings, loss of all electrical functions.
Cause: The conventional 12V lead-acid battery, which powers the vehicle's computers and accessories, can fail prematurely due to infrequent use or parasitic drain, similar to any modern car.
Fix: Replace the 12V auxiliary battery with the correct OEM-specified AGM battery. Ensure the vehicle is driven regularly or placed on a battery maintainer if stored for long periods.
Software glitches (infotainment/display)
Symptoms: Blank instrument cluster, unresponsive touchscreen, error messages on startup.
Cause: Bugs or corruption in the vehicle's software for the instrument cluster or infotainment system.
Fix: Perform a system reset or update the software to the latest version via a dealer's diagnostic tool. In some cases, a module replacement may be necessary.
Tire wear (premature or uneven)
Symptoms: Excessive road noise, visible wear patterns on tires before 20,000 miles.
Cause: The vehicle's weight and instant torque can put extra stress on tires. Incorrect tire pressure or alignment can exacerbate wear.
Fix: Rotate tires every 5,000-7,500 miles and maintain correct tire pressure as specified on the driver's door jamb. Check and correct wheel alignment if uneven wear is observed.
Research Basis

Analysis derived from Honda technical bulletins (2017-2021) and NHTSA failure statistics (2018-2024). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about HONDA CLARITYELECTRIC

Find answers to most commonly asked questions about HONDA CLARITYELECTRIC.

Research Resources

Comprehensive technical documentation and regulatory references

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Last Updated: 16 August 2025

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