2019 Honda Clarity Plug-In Hybrid Engine Problems
- Complaints
- 10about this part
- Share
- 24%of 42 total for the year
- Median mileage
- 350miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 10 complaints about the engine of the 2019 Honda Clarity Plug-In Hybrid, 24% of the 42 complaints for this model year. Where a mileage was given, the median is 350 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“My car is losing power and getting loud noise while driving on an uphill road. I have shown my car to 3 different dealers and they couldn't fix it. I have seen many online reviews with the same problem and still, Honda is not helping its customer.”
NHTSA complaint #11330558, filed 2020-06, 12,500 miles“July 4, 2020 drove with our family of 2 babies on a local highway with a maximum speed of 50mph and traveling a round-trip distance of 52 miles. Outside temperatures were about 89℉. After driving for about 20 minutes, the engine would rev at a high RPM at 40mph. It could be heard and felt over the radio's music. Giving more gas didn't make the car drive faster. On the way home, about 40 minutes into the drive, the engine revved high again at 40mph, lost of power, and this time making the car's speed slow to 30mph because we were approaching a red light, luckily. …”
NHTSA complaint #11337549, filed 2020-07, 20 miles“The car drives fine when there is sufficient battery. When battery level drops to low (2 bars) the car does not respond to accelerator. The engine becomes sluggish and revs up quite a bit. I have driven ~650 miles so far and this has happened 4 times already. Luckily it happened only once in the highway where this would have been dangerous and life threatening.”
NHTSA complaint #11204059, filed 2019-04, 600 miles“7.25.2020 - when car is running for 45 minutes, 85 degrees f, EV on, econ off, engines loses power and revs high after 40mph. 7.18.2020 - when car is running for 45 minutes, 89 degrees f, EV off, econ on, engines loses power and revs high after 40mph. 2015 toyota prius plug-in had the similar issue of the car losing power after driving faster than 62 MPH with EV mode on. A relay switch recall occurred that fixed this issue.. So far.”
NHTSA complaint #11341513, filed 2020-07, 30 miles“When driving in gas mode, the engine is revving high as in high rpm . I am not sure if the gear is shifting or has problems. The car revs high and the more I push the accelerator the louder the engine sound.”
NHTSA complaint #11503147, filed 2023-01Engine: other model years
Other parts of the 2019 Honda Clarity Plug-In Hybrid
12 complaintsVehicle speed control
9 complaintsElectrical system
7 complaintsOther or unknown
7 complaintsTransmission and drivetrain
4 complaintsBrakes
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsAir bags
2 complaintsExterior lighting
2 complaintsForward collision avoidance
2 complaintsLane departure
2 complaintsSeat belts
2 complaints
← All problems reported for the 2019 Honda Clarity Plug-In Hybrid
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology