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2020 Honda Clarity Plug-In Hybrid Owner Complaints

Reports submitted to NHTSA by owners and drivers, shown in full

Data refreshed

Complaints on fileComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
6
Latest May 12, 2026
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
1
Filed in the last 12 monthsReports filed with NHTSA in the trailing 365 days. Recent volume reflects attention and vehicle age as much as anything else.
2
Reports on file since Aug 30, 2020

What this page shows

Our database holds 6 NHTSA owner-reported complaints for the 2020 Honda Clarity Plug-In Hybrid. Each one is a report filed by an owner or driver and published by NHTSA without most of them being verified. A complaint is not a confirmed defect, not a recall and not a manufacturer bulletin. Narratives are shown exactly as filed.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Complaints, most recent first

Showing 1–6 of 6

Driver assistance
Filed May 12, 2026

The forward-facing multipurpose camera unit (ADAS camera) failed internally while driving, causing the simultaneous deactivation of multiple critical safety systems including Collision Mitigation Braking (CMBS), Road Departure Mitigation, and Lane Keeping Assist (LKAS). The failure is indicated by persistent dashboard warning messages stating 'System Fault' or 'Honda Sensing Problem'.A professional diagnostic scan confirmed DTC code U3000-49 (Multipurpose Camera Unit Internal Failure). The sudden and unpredictable loss of these automated safety features reduces the vehicle's ability to assist in avoiding collisions and increases the risk of a crash, particularly in emergency situations. This appears to be a widespread manufacturing defect in the camera hardware that poses an unreasonable safety risk to drivers and passengers.

NHTSA ID
11737243
Incident
Feb 2, 2026
Driver assistance
Filed Mar 22, 2026

The ADAS camera system failed causing multiple warnings and failures including lane departure system, forward collision system, adaptive cruise control and lane keeping assistance.

NHTSA ID
11726194
Incident
Mar 20, 2026
Driver assistanceElectrical
Filed Dec 31, 2024
Crash reported

During a U-turn, when I turned the steering wheel my vehicle suddenly accelerated unexpected. I suspect there may have been a malfunction in the vehicle's electronic control system that caused this sudden unintended acceleration. I did alert Honda North America to study the problem. On [XXX], while driving on a narrow street at a speed of less than 5 miles per hour, my vehicle suddenly accelerated as I was making a U-turn. In my nervous response, I pressed the accelerator pedal, which exacerbated the situation and caused my vehicle to hit the driveway bushes at [XXX]   Fortunately, the property damage was minor, affecting only the bushes, and there were no injuries. I believe it is important to report this Sudden Unintended Acceleration problem for your file. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID
11633288
Incident
Dec 22, 2024
Visibility
Filed Apr 12, 2024

A/C stopped working, so defrost is no longer working efficiently. Honda says they only cover the condenser under the extended warranty and not the evaporator and want to charge me over 2200 to repair. If they are extending A/C warranty for condenser it should cover the entire A/C system since everyone online that had an issue with the condenser eventually ends up with an evaporator issue as well and then the defrost or A/C do not work properly.

NHTSA ID
11582682
Incident
Apr 11, 2024
EnginePowertrain (other)
Filed Dec 23, 2022

Engine RPM's rise (near red line at times) with little to no propulsion. The slang I've found used in online forums, showing that this is a common problem, is "angry bees."

NHTSA ID
11498681
Incident
Dec 22, 2022
Driver assistanceEngine
Filed Aug 30, 2020

WHEN THE BATTERY IS LOW THE HONDA CLARITY'S RPM JUMP REALLY HIGH AND VEHICLE REVS REALLY HARD AND STARTS TO LOSE POWER. MY VEHICLE HAD TWO BATTERY BARS AND WHEN I TRIED TO CLIMB IT MOUNTAIN IT LOST SPEED. I WAS ALMOST HIT TWICE BECAUSE MY CAR KEPT LOSING SPEED AND IT WAS REVVING LIKE IT WAS STRUGGLING TO KEEP MOVING. VERY SCARY SITUATION TO BE IN WITH OTHER CARS AND LITTLE CHILDREN IN MY CAR. I HAVE A VIDEO OF THE CAR REVVING.

NHTSA ID
11352172
Incident
Aug 30, 2020
Mileage
3,060 mi

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Data sources

Data on this page last refreshed .