Buyers researching the best and worst years of alternative fuel vehicles will find that the 2021 and 2020 models are the strongest choices.
Early Honda Clarity Plug-In Hybrid models require extra caution due to first-year electrical faults and higher complaint volumes.
While no used Clarity is flawless, verifying recall completion and inspecting the air conditioning system are critical steps for a reliable purchase.
Rankings among these model years are comparative, meaning even the best years require a thorough pre-purchase inspection.
Maintenance history and overall vehicle condition ultimately matter more than the badge on the trunk.
Meaningful differences exist between the Clarity’s configurations.
The Plug-In Hybrid is the most common on the used market, while the 2017 model year was limited to Electric and Fuel Cell variants that were mostly restricted to California leases.
Quick Navigation
Best and Worst Honda Clarity Years at a Glance
| Model Year | Verdict | Main Reason | Buyer Guidance |
|---|---|---|---|
| 2021 | Best Choice | Final production year with mature software | Verify fuel pump recall completion |
| 2020 | Good Choice | Solid reliability with minor updates | Inspect AC condenser for leaks |
| 2019 | Good With Inspection | Carryover year with known TSBs | Check for Hybrid System Failure codes |
| 2018 | Approach Carefully | First-year PHEV with higher complaint volume | Demand full service and TSB records |
| 2017 | Configuration-Specific | EV and Fuel Cell only, limited availability | Only consider if local infrastructure exists |
Key Takeaways
- The 2021 and 2020 model years are the top recommendations for used buyers.
- The 2018 model year requires extra scrutiny due to early-production hybrid system faults.
- The Clarity Plug-In Hybrid was introduced for the 2018 model year and discontinued after 2021.
- A vulnerable AC condenser is a known issue across all PHEV years.
- Always verify that open safety recalls have been completed using the VIN.
How We Evaluated the Honda Clarity Model Years
Our analysis reviews official NHTSA recalls, manufacturer service campaigns, technical service bulletins, and consumer complaint patterns.
We weigh the severity and recurrence of powertrain and electrical faults against the vehicle’s overall ownership experience.
Consumer complaints are not confirmed failure rates, and a recall does not automatically make a vehicle unreliable if the remedy is applied.
Recent or low-production models like the Clarity have less long-term data than mainstream sedans, so we prioritize verified mechanical evidence over isolated reports.
Best Honda Clarity Years
2021 Honda Clarity
The 2021 model year represents the final iteration of the Clarity Plug-In Hybrid, benefiting from several years of software refinement and manufacturing adjustments.
It offers an impressive 47 miles of EPA-estimated electric range, making it highly practical for daily commuting.
Buyers should still verify that all open recalls have been addressed by a dealer.
2020 Honda Clarity
The 2020 Clarity remains a very strong option, sharing the same dependable powertrain as the 2021 model.
It features a spacious, premium-feeling cabin and excellent ride comfort.
The primary focus during inspection should be confirming that the fuel pump recall has been performed.
Best Year by Buyer Type
- Best Overall: 2021 Honda Clarity Plug-In Hybrid
- Best Budget Option: 2019 Honda Clarity Plug-In Hybrid (with verified TSB repairs)
- Best Commuter Alternative: Honda Accord Hybrid
Years to Approach Carefully
2018 Honda Clarity
As the inaugural year for the Plug-In Hybrid configuration, the 2018 model experienced more growing pains than later years.
Owners and technicians have documented instances of the “Hybrid System Failure” message appearing on the dash, often linked to the generator motor inverter.
A comprehensive diagnostic scan is essential before purchasing.
2019 Honda Clarity
The 2019 model improved upon the 2018, but it remains susceptible to the same AC condenser vulnerabilities and inverter faults.
It is a good choice only if a pre-purchase inspection confirms the hybrid system is healthy and the air conditioning blows consistently cold.
Worst Honda Clarity Years
We do not assign a strict “Avoid” verdict to any Clarity PHEV year, as the platform is generally sound when properly maintained.
However, the 2018 model year demands the highest level of caution.
If a 2018 example lacks documented proof of Technical Service Bulletin compliance or shows active hybrid system codes, buyers should walk away.
Honda Clarity Reliability by Generation
The modern Clarity was produced from 2017 through 2021 as a single generation.
While the 2017 model year introduced the nameplate, it was exclusively available as an Electric or Fuel Cell vehicle, primarily in California.
The Plug-In Hybrid arrived for 2018 and became the volume seller.
Because the PHEV powertrain remained largely unchanged from 2018 to 2021, reliability is tied more to build-date software revisions and recall compliance than to major mechanical overhauls.
Common Honda Clarity Problems
Hybrid System Inverter Faults
Some 2018 through 2020 models may trigger a “Hybrid System Failure” warning on the instrument cluster.
This is often associated with diagnostic trouble code P1D8D, indicating a potential short or fault in the generator motor inverter.
Honda issued technical service bulletins to address this, so buyers must verify if the software update or component replacement was performed.
AC Condenser Refrigerant Leaks
The AC condenser on the Clarity is positioned in a way that makes it vulnerable to road debris and corrosion.
Owners across all PHEV model years have reported refrigerant leaks and a subsequent loss of cabin cooling.
Honda has acknowledged this issue and extended warranty coverage for the condenser in certain markets.
Fuel Pump Impeller Failure
Like many Honda vehicles from this era, the Clarity is subject to a major safety recall regarding the Denso fuel pump.
The impeller inside the pump can deform, causing the fuel pump to fail and the engine to stall.
This affects 2018 through 2021 models and requires a free replacement at a dealership.
What to Check Before Buying a Used Honda Clarity
- Verify the VIN: Check for open recalls, specifically the fuel pump and any airbag notices.
- Scan for Hybrid Codes: Use an OBD-II scanner capable of reading Honda hybrid-specific codes to check for pending inverter faults.
- Test the Climate Control: Run the AC at maximum cold to ensure the condenser is not leaking and the system holds pressure.
- Inspect the Charge Port: Check the charging door and connector for signs of water intrusion or physical damage.
- Review Service Records: Confirm that all Honda-issued software updates and Technical Service Bulletins have been applied.
- Check the 12-Volt Battery: PHEVs rely heavily on the 12V battery for system boot-up; verify its age and health.
Related Buying Guides
- Honda Accord years to avoid: Explore which years of Honda’s flagship hybrid sedan struggle with transmission and infotainment issues.
- Honda Civic years to avoid: Learn which generations of this compact staple suffer from oil dilution and CVT complaints.
- Honda Fit best and worst years: Discover the most reliable model years for Honda’s ultra-practical subcompact hatchback.
- Honda HR-V best and worst years: Find out which subcompact crossover years offer the best longevity and which suffer from reliability faults.
Frequently Asked Questions
What is the best year for the Honda Clarity?
The 2021 Honda Clarity Plug-In Hybrid is the best choice, as it is the final production year with the most mature software and hardware refinements.
Why was the Honda Clarity discontinued?
Honda discontinued the Clarity after 2021 to streamline its electrified lineup, shifting focus toward newer hybrid systems and dedicated EV platforms.
Does the Honda Clarity have transmission problems?
The Clarity uses an e-CVT system that is generally reliable, but inverter faults can mimic transmission failures by triggering a hybrid system warning.
Is the Honda Clarity expensive to maintain?
Routine maintenance is comparable to a standard Honda sedan, but out-of-warranty hybrid battery or inverter repairs can be costly if not covered by recalls.
How long does the Clarity battery last?
The high-voltage battery is designed to last the life of the vehicle, and Honda provides an extensive hybrid component warranty in most regions.
Can I charge the Clarity at home?
Yes, the Plug-In Hybrid can be charged using a standard 120-volt household outlet or a faster 240-volt Level 2 home charging station.
Which Honda Clarity Year Should You Buy?
The 2021 and 2020 Honda Clarity Plug-In Hybrid models offer the most dependable ownership experience, combining excellent electric range with a comfortable cabin.
Buyers should approach the 2018 model year with caution and demand proof of hybrid system updates.
Regardless of the year, verifying recall completion and conducting a thorough pre-purchase inspection are essential for a smart purchase.
