2018 Honda Clarity Plug-In Hybrid engine problems
25 owner complaints filed with NHTSA name the engine on the 2018 Honda Clarity Plug-In Hybrid — 19% of all complaints for this model year.
What owners report
“I will first start with our problems/concerns. We had experienced a complete lost power in freeway speed (65 mph) when the battery is depleted, that is when the battery bar goes to zero bar instead of 2 bars usually. I attached a photo from the video I took for your reference. This experience was…”
filed May 15, 2026
“Since fuel pump recall fix by dealership, “Emission System Problem” started appearing in my car due to the way fuel pump recall was fixed. They already attempted to fix the issue 5 times but unable to provide permanent fix. Honda corporate office also not willing to help. This is a safety issue as…”
filed Feb 25, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Service Bulletin - There is a software problem in the PCM, which may cause the MIL to come on with DTC P26A3 (electric water valve malfunction), DTC P100C (electric VTC motor speed signal circuit malfunction) and/or…
A18-090 · Service Bulletin/Repair Instructions · issued Oct 17, 2019Owner Notification Letter - On Clarity Plug-in Hybrid vehicles, there is a software problem in the climate control unit when running the heater, which may turn the malfunction indicator light on.
ONL6SV03262019 · Service Bulletin/Repair Instructions · issued Mar 26, 2019
Engine problems in other Clarity Plug-In Hybrid years
| Year | Reports | Share |
|---|---|---|
| 2019 Clarity Plug-In Hybrid | 10 | 24% |
Other reported problem areas on the 2018 Honda Clarity Plug-In Hybrid
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.