2021 Honda Clarity: Hybrid Features, Clean Innovation

The 2021 Honda Clarity represents Honda’s forward-thinking approach to sustainable mobility, blending advanced hybrid and fuel-cell technologies with modern design and comfort. Available in both Plug-in Hybrid (PHEV) and Fuel Cell Electric (FCEV) versions, the Clarity delivers impressive efficiency and practicality for eco-conscious drivers. With refined aerodynamics, a spacious cabin, and intuitive technology, the 2021 model remains one of the most sophisticated clean-energy sedans in its segment.

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What’s New in the 2021 Honda Clarity: Design and Updates

The 2021 Honda Clarity continues to refine its image as one of the most innovative eco-friendly sedans in the market. Building on the previous generation’s strengths, it combines advanced hybrid engineering with modern styling, interior refinement, and smoother energy management systems. The Clarity stands out as a symbol of Honda’s long-term commitment to cleaner mobility, offering both Plug-in Hybrid (PHEV) and Fuel Cell (FCEV) variants designed to meet the needs of a wide range of eco-conscious drivers.

Exterior Design Enhancements

For 2021, the Clarity features subtle design improvements that enhance its aerodynamic efficiency and futuristic presence. The front fascia integrates a smoother grille section with slim LED headlamps and new daytime running light (DRL) patterns, giving it a more cohesive look. The taillight design also receives a refreshed layout for improved visibility and modern appeal.

The Clarity’s distinctive silhouette — defined by its aero-optimized rear wheel covers, flush door handles, and active airflow panels — reduces drag and contributes to superior efficiency. The 18-inch alloy wheels have also been updated with a lighter construction, helping to improve range and overall ride smoothness.

Interior and Feature Updates

Inside, the 2021 model introduces upgraded materials and better cabin insulation for quieter driving. The center console features a more ergonomic design, while the infotainment display receives a software refresh with faster processing and improved touch sensitivity. Honda has also expanded Apple CarPlay and Android Auto support across all trims.

The cabin design remains modern and uncluttered, using eco-conscious materials such as ultrasuede inserts and plant-derived leather alternatives, emphasizing sustainability throughout the interior.

Model Range and Key Revisions

The 2021 Clarity lineup continues to be available in two distinct versions — Plug-in Hybrid (PHEV) and Fuel Cell (FCEV) — both offering exceptional efficiency. Honda improved the battery management system and refined the regenerative braking calibration for smoother energy recovery in the hybrid model, while the FCEV version benefits from enhanced hydrogen storage efficiency and slightly reduced refueling time.

Version	Powertrain Type	Range (EPA est.)	Transmission	Drivetrain
Clarity Plug-in Hybrid	1.5L I4 + Electric Motor	340 miles total (47 EV miles)	E-CVT	FWD
Clarity Fuel Cell	Hydrogen Fuel Cell	360 miles	Single-Speed	FWD

Key Highlights

• Aerodynamic redesign with improved lighting and wheel design
• Enhanced cabin insulation and upgraded infotainment system
• Expanded smartphone connectivity features
• Refined hybrid and fuel cell systems for smoother performance
• Maintains leadership in eco-friendly sedan innovation

The 2021 Honda Clarity evolves into a more polished and advanced version of Honda’s sustainability vision, combining innovation, comfort, and environmental responsibility in a sleek and efficient package.

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Engine Options and Performance Efficiency

The 2021 Honda Clarity delivers a unique powertrain lineup that reflects Honda’s technological depth in sustainable mobility. Available in Plug-in Hybrid (PHEV) and Fuel Cell Electric Vehicle (FCEV) configurations, the Clarity provides smooth, efficient, and quiet performance — proving that environmentally friendly cars can also be refined and enjoyable to drive.

Plug-in Hybrid (PHEV) Powertrain

The Clarity Plug-in Hybrid features a 1.5-liter Atkinson-cycle 4-cylinder gasoline engine combined with a 17.0 kWh lithium-ion battery and a dual electric motor system. Together, they deliver a total system output of 212 horsepower, offering smooth and responsive performance for both city and highway driving.

The PHEV can travel up to 47 miles on pure electric power, making it ideal for short commutes and urban driving. Once the battery is depleted, the gasoline engine seamlessly engages, extending the total driving range to 340 miles.

Specification	Clarity Plug-in Hybrid
Engine Type	1.5L I4 Atkinson-Cycle Gasoline
Electric Motor Output	181 hp / 232 lb-ft torque
Combined Power Output	212 hp (system total)
Battery Capacity	17.0 kWh Lithium-ion
Transmission	E-CVT (Electronic Continuously Variable Transmission)
Drivetrain	Front-Wheel Drive (FWD)

The E-CVT transmission ensures smooth power transitions, while regenerative braking captures kinetic energy to recharge the battery during deceleration. The hybrid system also allows EV, Hybrid, and Engine Drive modes for optimized performance depending on driving conditions.

Fuel Cell (FCEV) Powertrain

The Clarity Fuel Cell utilizes hydrogen fuel cell technology, which converts hydrogen and oxygen into electricity with water vapor as the only emission. It produces 174 horsepower and 221 lb-ft of torque, delivering instant response through its single-speed direct-drive motor.

Hydrogen refueling takes approximately 3–5 minutes, providing an EPA-estimated 360-mile range. The lightweight carbon-fiber hydrogen tanks are engineered for maximum safety and efficiency.

Specification	Clarity Fuel Cell
Power Output	174 hp / 221 lb-ft torque
Range	360 miles (EPA est.)
Refueling Time	≈5 minutes
Drivetrain	FWD (single-speed drive)
Emissions	Zero (water vapor only)

Performance and Driving Dynamics

Both versions emphasize refinement over aggressiveness. Acceleration is smooth and linear, particularly in EV mode where torque is instantly available. The car’s low center of gravity, achieved through battery and hydrogen tank placement under the floor, enhances stability and cornering balance.

The Clarity PHEV also benefits from a multi-link rear suspension, providing excellent ride comfort and control over uneven roads. Noise levels are minimal, aided by active sound insulation and aerodynamic optimization.

Key Highlights

• 212 hp hybrid system with 47-mile EV range
• Zero-emission FCEV version with 360-mile hydrogen range
• Smooth E-CVT transmission and regenerative braking
• Low center of gravity for enhanced handling and comfort
• Instant torque delivery and silent acceleration

The 2021 Honda Clarity proves that eco-conscious driving does not mean sacrificing power or refinement. With its advanced hybrid and fuel cell systems, it combines environmental responsibility with everyday usability and comfort.

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Driving Experience and Handling Comfort

The 2021 Honda Clarity delivers a composed and effortless driving experience that aligns with its eco-friendly mission. It combines quiet operation, smooth acceleration, and balanced handling, making it one of the most comfortable and refined plug-in hybrids and fuel-cell sedans available.

Ride Quality and Refinement

From the moment you start the Clarity, its refinement is evident. The electric motor provides instant torque, ensuring quick yet silent acceleration, particularly in EV mode. The cabin remains serene, with minimal road or wind noise thanks to Honda’s extensive use of acoustic glass, aero-efficient underbody panels, and sound-absorbing insulation.

In the Plug-in Hybrid (PHEV) version, transitions between electric and gasoline operation are nearly imperceptible. The E-CVT manages power delivery smoothly, while regenerative braking ensures a natural pedal feel without abrupt deceleration.

Handling and Steering Precision

The Clarity features a rigid chassis and low-mounted battery/hydrogen system, giving it a low center of gravity that enhances cornering stability and composure. Its independent MacPherson strut front suspension and multi-link rear suspension deliver a perfect balance between comfort and agility.

The electric power steering system is tuned for precision and feedback, making the car feel light yet confident in city driving and stable on highways. The turning radius is compact enough to handle tight parking situations easily — a practical advantage for urban drivers.

Drive Modes and Performance Flexibility

Drivers can choose between multiple drive modes to tailor the experience:

• EV Mode: Prioritizes electric-only driving for quiet urban use.
• HV Mode: Maintains battery charge using the gasoline engine when needed.
• HV Charge Mode: Uses the engine to recharge the battery during longer drives.
• Sport Mode: Enhances throttle response and regenerative braking for dynamic performance.

In Fuel Cell models, throttle response is instant and consistent, similar to an electric vehicle. The single-speed direct-drive system ensures uninterrupted power flow, creating a relaxed and linear driving feel.

Braking and Stability Systems

The Clarity incorporates Honda’s Vehicle Stability Assist (VSA), Electronic Brake Distribution (EBD), and Anti-lock Braking System (ABS) to maintain control in varied road conditions. The regenerative braking system captures energy efficiently while keeping brake response smooth and predictable.

Driving Comfort Summary

Feature	Benefit
Low Center of Gravity	Enhanced stability and cornering precision
Electric Drive Modes	Quiet and efficient operation
Adaptive Suspension Tuning	Balanced ride comfort
Acoustic Insulation	Cabin remains silent at highway speeds
Regenerative Braking	Smooth deceleration and energy recovery

Key Highlights

• Exceptionally quiet cabin and smooth power delivery
• Balanced multi-link suspension for refined handling
• Multiple drive modes for efficiency or sportiness
• Instant torque from electric motor ensures responsive acceleration
• Advanced stability systems enhance confidence and safety

The 2021 Honda Clarity delivers a sophisticated driving experience that perfectly aligns with its sustainable philosophy. It feels stable, smooth, and refined — offering comfort and control that rival traditional premium sedans while operating with the serenity of a next-generation electric vehicle.

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Interior Design, Comfort, and Space Innovation

The 2021 Honda Clarity proves that environmentally responsible engineering can coexist with luxury and comfort. Its interior is built around sustainability, spaciousness, and modern design — offering a premium atmosphere that rivals higher-priced sedans. Every surface, control, and material has been carefully considered to promote relaxation and efficiency during every journey.

Cabin Design Philosophy

The Clarity’s cabin embraces Honda’s “Man Maximum, Machine Minimum” design approach, prioritizing occupant space over mechanical components. This philosophy allows a generous interior layout, making it one of the most spacious sedans in the plug-in hybrid and fuel-cell category.

The dashboard features a floating center console design with open storage underneath, giving a light and airy feel to the cabin. The dual-screen setup — an 8-inch infotainment display and a 7-inch digital instrument cluster — keeps key driving information easily accessible without distraction.

High-quality materials define the space, including ultrasuede inserts, soft-touch panels, and eco-conscious leather alternatives. The minimalist design and matte-finish accents give the interior a calm, premium character.

Seating Comfort and Space

Both front and rear seats are exceptionally supportive, designed for long-distance comfort. The driver’s seat offers 8-way power adjustment, while the front passenger seat provides 4-way power movement. Heated front seats come standard, and climate-controlled options are available in higher trims.

The rear seats are spacious enough for three adults, offering generous legroom and headroom thanks to the car’s wide-body platform and smart roofline design. The elevated seating position also improves outward visibility.

Interior Measurement	2021 Honda Clarity
Seating Capacity	5 passengers
Front Headroom	39.1 in (993 mm)
Rear Headroom	37.1 in (942 mm)
Front Legroom	42.2 in (1072 mm)
Rear Legroom	36.2 in (919 mm)
Cargo Capacity (PHEV)**	15.5 cu ft (439 liters)

The Fuel Cell model offers slightly less trunk space (approx. 11.8 cu ft) due to hydrogen tank packaging but maintains the same overall comfort levels.

Climate and Cabin Ambience

Honda equips the Clarity with a dual-zone automatic climate control system featuring Plasmacluster ion technology, which helps purify cabin air. The quiet cabin design and soft ambient lighting contribute to a sense of serenity — perfect for long commutes or city drives.

The acoustic windshield and triple-sealed doors further isolate the cabin from outside noise. Materials throughout the interior are designed not only for aesthetics but also for sustainability, with bio-based fabrics and plant-derived materials used wherever possible.

Key Highlights

• Eco-conscious materials and minimalist design
• Spacious five-passenger cabin with superior visibility
• Floating center console adds openness and storage space
• Dual digital displays for infotainment and driver data
• Dual-zone climate control with advanced air filtration

The 2021 Honda Clarity offers one of the most refined and environmentally aware interiors in its class. With a harmonious blend of sustainable materials, digital sophistication, and class-leading comfort, it sets a new benchmark for modern eco-luxury sedans.

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Safety and Driver Assistance Systems

The 2021 Honda Clarity continues Honda’s long tradition of prioritizing safety, offering advanced driver assistance systems and a strong structural foundation designed to protect passengers in all driving situations. Both the Plug-in Hybrid and Fuel Cell models come equipped with Honda Sensing, a comprehensive suite of intelligent technologies aimed at preventing accidents before they happen.

Active Safety and Driver Assistance

The Honda Sensing package is standard across all Clarity trims, integrating sensors, cameras, and radar systems to assist the driver. These technologies enhance awareness, reduce fatigue, and actively intervene when necessary to avoid collisions.

Honda Sensing Includes:

• Collision Mitigation Braking System (CMBS): Detects obstacles ahead and applies brakes automatically if a frontal collision is imminent.
• Road Departure Mitigation (RDM): Warns and assists if the vehicle unintentionally drifts off the road.
• Lane Keeping Assist System (LKAS): Gently adjusts steering to keep the vehicle centered in its lane.
• Adaptive Cruise Control (ACC): Maintains a safe distance from the vehicle ahead and can bring the car to a full stop in traffic.
• Forward Collision Warning (FCW): Alerts the driver to potential front-end collisions.
• Traffic Sign Recognition (TSR): Detects and displays road signs on the driver’s display.

Together, these systems make the Clarity exceptionally easy to drive in urban and highway environments, providing confidence and reducing stress behind the wheel.

Passive Safety and Structural Integrity

The Advanced Compatibility Engineering (ACE) body structure forms the foundation of the Clarity’s impressive crash performance. The chassis is designed to distribute impact energy evenly across the frame, protecting passengers in frontal, side, and rear collisions.

Passive Safety Highlights:

• Eight standard airbags, including side curtain and driver’s knee airbags
• High-strength steel frame for improved rigidity and durability
• Reinforced hydrogen tank (FCEV) and protective battery housing (PHEV)
• Whiplash-mitigating front head restraints
• Child seat anchors (LATCH) and safety locks for family use

Honda’s engineers also incorporated hydrogen leak detection sensors and automatic shut-off systems in the Clarity Fuel Cell, ensuring maximum safety for hydrogen storage and operation.

Driver Awareness and Convenience

In addition to active and passive systems, the Clarity offers several convenience technologies designed to make driving safer and more intuitive:

• Multi-angle rearview camera with dynamic guidelines
• Auto high-beam headlights that adjust to traffic conditions
• Electronic parking brake with Brake Hold for smooth starts on inclines
• Rain-sensing wipers and acoustic windshield for visibility and comfort

Safety Ratings and Validation

While the 2021 Honda Clarity Plug-in Hybrid was not re-tested for that model year, earlier versions received top ratings in NHTSA and IIHS crash tests, reflecting the model’s excellent protection standards.

Key Highlights

• Standard Honda Sensing suite across all trims
• Eight airbags and reinforced ACE body structure
• Adaptive Cruise Control and Lane Keeping Assist for relaxed driving
• Hydrogen leak and shut-off systems for FCEV safety
• Multi-angle camera system and automatic braking assist

The 2021 Honda Clarity combines Honda’s signature safety engineering with futuristic clean-energy technology. Whether in hybrid or fuel-cell form, it ensures peace of mind through intelligent protection, precision sensors, and robust structural strength.

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Technology and Infotainment Features

The 2021 Honda Clarity merges sustainability with smart connectivity, offering an advanced suite of digital features designed to keep drivers informed, connected, and entertained. Both the Plug-in Hybrid and Fuel Cell variants come equipped with an upgraded infotainment interface, intuitive controls, and seamless smartphone integration — ensuring that technology enhances, rather than complicates, the driving experience.

Infotainment System Overview

At the heart of the Clarity’s cabin technology is the 8-inch Display Audio touchscreen, standard across all trims. The system is powered by a faster processor for smoother navigation through menus and improved responsiveness. The interface has been simplified for 2021, featuring larger icons and a customizable home layout for easy access to frequently used functions.

Core Infotainment Features:

• Apple CarPlay and Android Auto (standard on all trims)
• Bluetooth HandsFreeLink and audio streaming
• Voice command recognition for phone, navigation, and music control
• Multi-view rear camera integrated with display guidelines
• HD Radio, SiriusXM, and Pandora compatibility

Navigation-equipped trims benefit from Honda Satellite-Linked Navigation with 3D mapping and real-time traffic updates, ensuring efficient route planning.

Audio and Sound System

The Clarity provides premium audio quality through its 8-speaker sound system, with clear output even at higher volumes. The Plug-in Hybrid Touring trim and Fuel Cell model feature a premium 12-speaker audio system with subwoofer, offering an immersive surround experience. The acoustic tuning is optimized for the Clarity’s quiet cabin, taking advantage of its electric drivetrain’s minimal noise.

Driver Interface and Digital Display

The 7-inch TFT digital instrument cluster provides real-time data such as:

• Energy flow between the engine, battery, and wheels
• Remaining EV range and fuel economy
• Active Honda Sensing alerts
• Driving mode indicator and regenerative braking feedback

In the Fuel Cell variant, the display also shows hydrogen consumption, battery charge, and fuel-cell power output, allowing drivers to monitor efficiency precisely.

Connectivity and Smart Integration

The Clarity seamlessly integrates digital life with vehicle operation through multiple connectivity tools:

• HondaLink App for remote monitoring, battery charging status, and route planning
• Over-the-air software updates for infotainment and navigation systems
• Wi-Fi hotspot capability for passenger connectivity
• Two USB ports and 12V accessory outlets in front and rear sections
• Wireless smartphone charging pad (Touring trim)

Convenience and Digital Comfort

To complement its smart systems, the Clarity offers additional comfort-focused tech features:

• Smart Entry with Walk-Away Auto Lock
• Push-button start with key proximity detection
• Auto-dimming rearview mirror
• Dual-zone automatic climate control with cabin pre-conditioning (via HondaLink)

Key Highlights

• 8-inch Display Audio touchscreen with Apple CarPlay and Android Auto
• 12-speaker premium audio system on higher trims
• HondaLink App for remote access and charging control
• 7-inch digital instrument cluster with real-time power data
• Advanced voice recognition and navigation integration

The 2021 Honda Clarity proves that eco-friendly vehicles can also deliver advanced digital sophistication. Its intelligent infotainment design, paired with a quiet cabin and user-friendly connectivity, makes daily driving both intuitive and enjoyable.

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Fuel Economy and Electric Range Performance

The 2021 Honda Clarity sets an impressive standard for fuel efficiency and electric range within the eco-sedan category. With its Plug-in Hybrid (PHEV) and Fuel Cell (FCEV) variants, the Clarity demonstrates Honda’s expertise in blending sustainable energy systems with real-world usability. It delivers not only exceptional economy but also flexibility — letting drivers choose between battery charging or hydrogen refueling depending on preference and availability.

Plug-in Hybrid Efficiency

The Clarity Plug-in Hybrid pairs a 1.5-liter gasoline engine with an electric motor powered by a 17.0 kWh lithium-ion battery. This configuration provides the ideal balance between electric-only driving and hybrid efficiency.

EPA-Rated Efficiency Figures:

Mode	MPGe / MPG	Range
Electric-Only (EV mode)	110 MPGe	47 miles
Hybrid (gasoline + electric)	42 mpg combined	340 miles total

The Clarity can operate solely on electric power for most daily commutes, while the gasoline engine activates automatically for longer trips, ensuring extended range without the need for frequent charging.

Charging is convenient — the battery can be recharged to full capacity in 2.5 hours using a 240V Level 2 charger, or overnight with a standard household outlet.

Efficiency Technologies:

• Regenerative braking for energy recovery
• EV and HV driving modes for intelligent power management
• Electric-only start capability for quiet operation in neighborhoods
• Eco Assist system with color-coded feedback for efficient driving

Fuel Cell (FCEV) Efficiency

The Clarity Fuel Cell uses compressed hydrogen to generate electricity through an advanced proton-exchange membrane fuel cell. It produces zero tailpipe emissions, releasing only water vapor while delivering a refined and responsive driving experience.

EPA-Rated Efficiency Figures:

Metric	Clarity Fuel Cell
Power Output	174 hp / 221 lb-ft torque
Driving Range	360 miles (EPA est.)
Fuel Economy	68 MPGe combined
Refueling Time	≈5 minutes

The FCEV model provides the convenience of quick refueling compared to battery-electric vehicles, making it highly practical for drivers in regions with accessible hydrogen stations.

Real-World Efficiency and Range Consistency

Owners report that the Clarity’s real-world electric range typically matches or exceeds EPA estimates under moderate conditions. The Eco Assist system provides feedback through the instrument cluster, encouraging more efficient acceleration and braking habits.

Drivers can also enable HV Charge Mode, which uses the gasoline engine to recharge the battery while driving — a helpful feature on long road trips.

Environmental Benefits

Both Clarity versions play a key role in reducing environmental impact:

• The PHEV cuts CO₂ emissions significantly compared to standard gasoline vehicles.
• The FCEV produces zero emissions and operates quietly, contributing to cleaner air and reduced noise pollution.

Key Highlights

• 47-mile EV range with 340-mile total range in hybrid mode
• 68 MPGe combined for Fuel Cell variant with 5-minute refueling
• Regenerative braking and Eco Assist feedback improve efficiency
• Zero tailpipe emissions in Fuel Cell model
• Fast charging and flexible range options for daily or long-distance driving

The 2021 Honda Clarity demonstrates that eco-friendly driving doesn’t have to mean compromise. Its hybrid and fuel-cell technologies deliver remarkable economy, effortless usability, and long-range practicality in a single forward-thinking package.

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Dimensions, Practicality, and Cargo Capacity

The 2021 Honda Clarity delivers the practicality of a midsize sedan combined with the comfort and usability of a family car. Designed around aerodynamic efficiency and cabin spaciousness, the Clarity offers generous room for passengers and ample cargo storage while maintaining its sleek, futuristic silhouette.

Exterior Dimensions

Despite its eco-focused engineering, the Clarity’s proportions remain elegant and well-balanced. Its low, wide stance gives it a stable road presence while maximizing aerodynamics for better efficiency.

Measurement	2021 Honda Clarity
Overall Length	4895 mm (192.7 in)
Overall Width	1877 mm (73.9 in)
Overall Height	1470 mm (57.9 in)
Wheelbase	2750 mm (108.3 in)
Ground Clearance	140 mm (5.5 in)
Curb Weight	≈ 1840 kg (PHEV) / 1875 kg (FCEV)

The aerodynamic body design — featuring a full underbody cover and partially enclosed rear wheels — contributes significantly to fuel efficiency and cabin quietness.

Interior Space and Passenger Comfort

Honda designed the Clarity’s interior to prioritize both comfort and accessibility. Wide-opening doors, a low step-in height, and generous dimensions ensure ease of entry for all occupants.

Interior Measurement	2021 Honda Clarity
Seating Capacity	5 passengers
Front Headroom	39.1 in (993 mm)
Rear Headroom	37.1 in (942 mm)
Front Legroom	42.2 in (1072 mm)
Rear Legroom	36.2 in (919 mm)
Shoulder Room (Front/Rear)	59.1 / 57.3 in

The Clarity’s flat floor design provides ample legroom even for rear passengers, while the high-quality seat cushioning ensures long-distance comfort.

Cargo and Storage Capacity

Practicality remains one of the Clarity’s strengths. The Plug-in Hybrid (PHEV) model offers a large trunk, whereas the Fuel Cell (FCEV) version sacrifices some space due to hydrogen tank placement.

Configuration	Cargo Volume
Clarity Plug-in Hybrid	15.5 cu ft (439 liters)
Clarity Fuel Cell	11.8 cu ft (334 liters)

The wide trunk opening and flat load floor make it easy to store large suitcases, groceries, or sports equipment. Folding rear seatbacks (in the PHEV) further improve cargo flexibility.

Everyday Usability and Visibility

The Clarity’s large glass surfaces, low beltline, and high seating position provide excellent outward visibility. Combined with front and rear parking sensors and a multi-angle rearview camera, maneuvering in tight spaces is easy.

Storage compartments throughout the cabin — including a floating center console, deep door pockets, and covered cupholders — ensure practical convenience for daily use.

Key Highlights

• Spacious five-passenger interior with class-leading comfort
• Large 15.5 cu ft cargo area in Plug-in Hybrid version
• Aerodynamic yet practical design with wide trunk opening
• Excellent visibility aided by sensors and camera systems
• Ample storage compartments and functional cabin layout

The 2021 Honda Clarity combines futuristic efficiency with real-world practicality. It offers the space and functionality expected from a family sedan, while maintaining the elegant, aerodynamic form that defines Honda’s forward-thinking engineering.

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Common Issues and Reliability Overview

The 2021 Honda Clarity upholds Honda’s reputation for reliability, offering durable hybrid and fuel-cell systems engineered for long-term use. Both the Plug-in Hybrid (PHEV) and Fuel Cell (FCEV) variants benefit from proven mechanical components, extensive testing, and low-maintenance electrified drivetrains. While the Clarity lineup is known for dependability, a few minor quirks have been observed — most of which are software-related and easy to address through dealer updates.

Reliability and Engineering Quality

Honda’s attention to engineering consistency is a key factor behind the Clarity’s reliability. The 1.5-liter Atkinson-cycle engine in the PHEV version has been tested across multiple global markets and optimized for hybrid efficiency. Similarly, the electric motors and lithium-ion battery pack are derived from Honda’s experience with the Accord Hybrid, ensuring robust and predictable performance.

The Fuel Cell Electric Vehicle (FCEV) variant uses a next-generation proton exchange membrane stack with simplified architecture and fewer moving parts, improving both durability and efficiency.

Commonly Reported Minor Issues

Owners have reported few notable issues with the 2021 Clarity, and most are non-mechanical:

• Infotainment lag or touchscreen freeze: Occasionally experienced after software updates; resolved via system reset or dealership reprogramming.
• Charging connector sensitivity: Some users noted that the charging plug requires precise alignment; minor and easily addressed with routine maintenance.
• Battery performance in cold weather: Like all hybrids, slight efficiency reduction occurs in extremely low temperatures.
• Lane Keep Assist alerts: Overly sensitive in certain road conditions but adjustable via driver settings.

None of these issues affect long-term performance or safety. In most cases, updates are applied automatically during scheduled service visits.

Durability Testing and Quality Validation

Honda extensively tested both Clarity variants under diverse conditions:

• Hybrid and electric systems underwent over 300,000 km of simulated real-world driving.
• Hydrogen tanks (FCEV) passed extreme heat, pressure, and impact testing to exceed global safety standards.
• Battery management software monitors temperature, voltage, and charge cycles to extend longevity.

Maintenance Reliability

The Plug-in Hybrid system requires minimal maintenance, as the electric motor handles most of the driving load, reducing wear on mechanical components. The Fuel Cell system similarly benefits from having no internal combustion process, eliminating oil changes and many typical service items.

Key Reliability Components:

• Sealed lithium-ion battery with thermal management
• Direct-drive electric motors with no transmission wear
• Hydrogen fuel system with leak detection sensors and automatic shutoff
• ASSYST PLUS maintenance alerts for predictive servicing

Owner Feedback and Long-Term Value

Owner satisfaction scores for the Clarity remain high, with particular praise for its reliability, low operating costs, and quiet performance. The Plug-in Hybrid’s hybrid-electric flexibility is especially valued by urban and suburban drivers seeking dependable efficiency.

Key Highlights

• Proven hybrid and fuel cell systems designed for durability
• Minor issues limited to infotainment and software updates
• 300,000 km endurance testing ensures long-term reliability
• Minimal mechanical wear due to electric motor dominance
• High owner satisfaction for dependability and low maintenance

The 2021 Honda Clarity represents the best of Honda’s engineering reliability, blending advanced eco-technology with practical durability. Its low-maintenance design and excellent component quality make it one of the most dependable clean-energy sedans in its class.

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Maintenance and Ownership Experience

The 2021 Honda Clarity has been engineered for simplicity and cost efficiency when it comes to ownership. Whether you choose the Plug-in Hybrid (PHEV) or the Fuel Cell (FCEV) variant, both offer low running costs, minimal maintenance requirements, and a stress-free ownership experience — all backed by Honda’s well-established reliability and service network.

Maintenance Schedule and Service Intervals

Honda designed the Clarity’s maintenance system to reduce unnecessary servicing through intelligent monitoring. The Maintenance Minder system automatically tracks engine oil life, battery health, and system performance, alerting the driver when specific maintenance actions are required.

Recommended Service Intervals:

Service Item	Interval
Engine Oil & Filter (PHEV only)	Every 12 months or 10,000 miles
Air Filter Replacement	Every 20,000 miles
Cabin Air Filter	Every 15,000 miles
Brake Fluid Replacement	Every 3 years
Coolant Service	Every 5 years
Transmission Fluid (E-CVT)	Every 40,000 miles
Tire Rotation / Alignment	Every 10,000 miles
High-Voltage Battery Inspection	Every 12 months
Hydrogen System Check (FCEV)	Every 6 months

The Fuel Cell variant requires even less regular maintenance, as it has no oil, spark plugs, or exhaust system. Routine hydrogen system inspections ensure operational safety and efficiency.

Low Operating Costs and Efficiency

With the Plug-in Hybrid model’s ability to run purely on electric power for short trips, most daily commutes can be completed without using gasoline. This dramatically reduces fuel expenses. In the Fuel Cell model, hydrogen refueling costs are typically offset by manufacturer incentives or fuel credits in certain regions.

The regenerative braking system reduces brake wear, and electric motor operation minimizes stress on engine components, contributing to longer part life.

Ownership Benefits and Support

Honda provides a comprehensive set of benefits designed to ensure confidence and convenience throughout ownership:

• 8-year / 100,000-mile warranty on hybrid and fuel-cell system components
• 3-year / 36,000-mile bumper-to-bumper warranty
• Complimentary 24-hour roadside assistance
• HondaLink app integration for service reminders and system diagnostics
• Nationwide Honda Service Network for hybrid and fuel-cell servicing

The Fuel Cell version also includes hydrogen refueling support, with dedicated service technicians and specialized safety inspections at authorized stations.

Long-Term Ownership Experience

Clarity owners consistently report high satisfaction due to its reliability, low maintenance needs, and quiet operation. The interior’s quality materials and durable components maintain their appearance even after years of use, and the electric drive system eliminates many traditional wear points found in gasoline vehicles.

Owner Advantages:

• Predictable, low annual maintenance costs
• Fewer mechanical components requiring service
• High resale value due to advanced technology and limited supply
• Digital service reminders via Maintenance Minder
• Environmentally responsible operation with long-term cost benefits

Key Highlights

• Maintenance Minder system automates service tracking
• 8-year hybrid/fuel-cell warranty for peace of mind
• Extremely low operating and servicing costs
• Minimal mechanical wear and extended part life
• HondaLink and roadside support enhance ownership convenience

The 2021 Honda Clarity makes ownership as easy as driving it. With its low-maintenance hybrid systems, predictive servicing technology, and strong warranty coverage, it delivers a premium, eco-friendly experience that’s as reliable as it is economical.

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Frequently Asked Questions About the 2021 Honda Clarity

What versions of the 2021 Honda Clarity are available?

The 2021 Honda Clarity is available in two main variants: the Plug-in Hybrid (PHEV) and the Fuel Cell (FCEV). The Plug-in Hybrid combines a gasoline engine with an electric motor for a total range of about 340 miles, while the Fuel Cell model uses hydrogen to generate electricity and offers a range of 360 miles with zero emissions.

How long does it take to charge the Clarity Plug-in Hybrid?

Using a Level 2 (240V) charger, the Clarity Plug-in Hybrid’s 17.0 kWh battery can be fully charged in about 2.5 hours. A standard household outlet (120V) takes approximately 12 hours for a full charge.

What is the electric-only driving range?

The Plug-in Hybrid version of the 2021 Clarity offers an EPA-rated 47 miles of pure electric range, allowing most daily commutes to be completed without using gasoline.

How efficient is the Clarity in real-world driving?

In combined driving, the Clarity Plug-in Hybrid achieves around 110 MPGe in electric mode and 42 mpg in hybrid operation. The Fuel Cell model returns about 68 MPGe combined, depending on driving conditions and hydrogen availability.

Is the 2021 Honda Clarity safe?

Yes. Every Clarity model comes standard with the Honda Sensing suite, which includes Adaptive Cruise Control, Lane Keeping Assist, Collision Mitigation Braking System, and Road Departure Mitigation. The body structure uses Advanced Compatibility Engineering (ACE) for superior crash protection.

What is the maintenance schedule like?

The Maintenance Minder system monitors service needs automatically. For the Plug-in Hybrid, oil changes are needed every 10,000 miles or 12 months, while the Fuel Cell version has no oil-related maintenance at all.

Does the Clarity require special servicing?

While the Fuel Cell variant must be serviced at authorized hydrogen-certified Honda dealers, the Plug-in Hybrid can be maintained at any Honda service center equipped for hybrid vehicles.

What warranty does Honda provide for the Clarity?

Honda offers an 8-year / 100,000-mile warranty on the hybrid battery and fuel-cell system, in addition to a 3-year / 36,000-mile limited warranty for general vehicle coverage.

How practical is the Clarity for daily use?

Very practical. The Plug-in Hybrid offers 15.5 cubic feet of trunk space, seating for five, and flexible power options. The Fuel Cell version, though slightly less spacious, is ideal for drivers with access to hydrogen refueling stations.

How does the Clarity compare to competitors?

The 2021 Clarity offers a smoother ride and longer electric range than most rivals like the Toyota Prius Prime and Hyundai Ioniq Plug-in, while the Fuel Cell version directly competes with the Toyota Mirai and offers comparable range with a more refined cabin.