Built from official NHTSA complaint and recall data · data through 07/12/2026
Elevated complaint levelIts most-reported problem — Engine — runs 1.5× the fleet median for that category across the 2583 model-years tracked on this site.
130Complaints
1Recalls
9Crashes
1Fires
3Injured
0Deaths
Source: U.S. NHTSA complaint & recall data. Complaints are unverified reports from vehicle owners — a complaint is not a confirmed defect.
Is this problem acknowledged?
The most-reported problem — Engine (19.2% of complaints) — recall and investigation status for this vehicle is currently unavailable.
Engine complaints here are 1.5× the median for that category across the 2583 model-years tracked on this site.
Complaint category
Reports
Official status
Reference
Engine
25 · 19.2%
not available
—
Fuel/propulsion System
23 · 17.7%
Recalled
Recall 23V858000
Power Train
19 · 14.6%
not available
—
Electrical System
16 · 12.3%
not available
—
Fuel System, Gasoline
15 · 11.5%
Recalled
Recall 23V858000
Vehicle Speed Control
11 · 8.5%
not available
—
Recalled = an NHTSA safety recall covers this category, so a free repair exists. Under investigation = NHTSA has an open probe but no recall yet. Investigation closed = NHTSA examined it and closed the probe — this is not a defect finding; where a closed probe led to a recall we name the campaign. Not available = recall or investigation data could not be confirmed for this vehicle — it is not a “no”. Categories are matched by NHTSA's top-level component. Check your VIN at nhtsa.gov/recalls.
Percentages are the share of the 130 complaints citing each component; one complaint can cite several components. “Unspecified / other” is NHTSA’s own catch-all category — we show it rather than hide it.
Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash. Recall repairs are free at authorized dealers.
PARK-IT: NO · PARK-OUTSIDE: NO · OVER-THE-AIR FIX: NO
Park itPark outside Specimen badges — shown on a recall card only when NHTSA sets the flag. None of the campaigns above carries either flag. Always check your own vehicle by VIN at nhtsa.gov/recalls.
What owners report
“WHILE I WAS CHECKING THE ENGINE OIL LEVEL, I SMELLED A STRONG GASOLINE ODOR. SINCE THIS PARTICULAR ENGINE HAS A KNOWN OIL DILUTION PROBLEM I…”NHTSA complaint 11405237 — filed 03/28/2021 · ENGINE
“FEW TIMES IT HAS HAPPENED ESPECIALLY IN EXTREME COLD WEATHER, THERE WILL BE LOSS OF POWER/ACCELERATION EVEN THOUGH YOU ARE TRYING TO ACCELERATE THE VEHICLE…”NHTSA complaint 11394934 — filed 02/06/2021 · ENGINE
“WHILE DRIVING ON THE INTERSTATE THROUGH THE MOUNTAINS, THE CAR WAS ABLE TO KEEP UP WITH TRAFFIC AT THE BOTTOM OF THE MOUNTAIN. HOWEVER, AS…”NHTSA complaint 11385163 — filed 12/27/2020 · ENGINE
Excerpts are shortened and scrubbed of personal details; they are individual, unverified reports.
Complaint trend by year filed
Frequently asked questions
What are the most common problems with the 2018 Honda Clarity Plug-in Hybrid?
Engine issues are the most-reported category, cited in 25 of 130 NHTSA complaints (19.2%), followed by fuel/propulsion system (23), power train (19), unspecified/other issues (18). Complaints are unverified owner reports.
How many complaints does the 2018 Honda Clarity Plug-in Hybrid have?
130 complaints were on file with NHTSA as of 07/12/2026. Of those, 9 involved a crash, 1 involved a fire, and 3 reported injuries. No deaths were reported.
Does the 2018 Honda Clarity Plug-in Hybrid have any recalls?
Yes — 1 NHTSA safety recall campaign, including campaign 23V858000. Recall repairs are free at authorized dealers. Check your specific vehicle by VIN at nhtsa.gov/recalls.
Has NHTSA acted on the 2018 Honda Clarity Plug-in Hybrid's reported problems?
Recall or investigation data is partly unavailable for this vehicle right now — check your VIN at nhtsa.gov/recalls for the authoritative answer.
Is a complaint proof of a defect?
No. Complaints are reports submitted by consumers to NHTSA. NHTSA does not verify individual complaints, and a complaint is not proof that a defect exists.
About this data — Complaint figures on this page are consumer reports submitted to the National Highway Traffic Safety Administration (NHTSA), a U.S. government agency. NHTSA does not verify individual complaints; a complaint is not proof that a defect exists, and counts reflect what owners chose to report, not confirmed failure rates. Recall information comes from official NHTSA safety recall campaigns; recall repairs are free at authorized dealers. Always check your specific vehicle by VIN at nhtsa.gov/recalls. CarModelProblems.com is an independent site and is not affiliated with NHTSA or any vehicle manufacturer. Data through 07/12/2026.
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