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2018 Honda Clarity PLUG-IN Hybrid

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

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When problems were reported

Mileage at the reported incident

64 reports with mileage · 70 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Engine. Review the 25 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Fuel/propulsion System. Review the 23 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 19 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

9 crash reports1 fire reports3 injury reports

Engine complaints

25 reports
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4,418 miles · Feb 27, 2019
EnginePower Train

TL* THE CONTACT OWNS A 2018 HONDA CLARITY PLUG-IN HYBRID. THE CONTACT STATED THAT ONCE THE HYBRID VEHICLE FINISHED ELECTRIC POWER, IT WOULD SWITCH TO GAS. WHILE IN GAS MODE, THE TRANSMISSION SLIPPED AND THE VEHICLE WOULD NOT ACCELERATE UP A HILL. IN ADDITION, THE ENGINE REVVED EXTREMELY HARD AND WOULD NOT GO INTO GEAR. THERE WER…

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TL* THE CONTACT OWNS A 2018 HONDA CLARITY PLUG-IN HYBRID. THE CONTACT STATED THAT ONCE THE HYBRID VEHICLE FINISHED ELECTRIC POWER, IT WOULD SWITCH TO GAS. WHILE IN GAS MODE, THE TRANSMISSION SLIPPED AND THE VEHICLE WOULD NOT ACCELERATE UP A HILL. IN ADDITION, THE ENGINE REVVED EXTREMELY HARD AND WOULD NOT GO INTO GEAR. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE DEALER AND MANUFACTURER WERE NOT CONTACTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS 4,418. THE VIN WAS UNKNOWN.

NHTSA ODI #11182859

12,000 miles · Feb 25, 2019
Electrical SystemEngine

CAR REVS UP WHEN DRIVING DOWN THE HIGHWAY BUT DROPS SPEED TO 10MPH. IT HAS DONE THIS 2 TIMES ONCE IN TOWN AND ONCE ON US 23 WHILE DRIVING 70MPH. THEIR ARE SEVERAL COMPLAINTS ABOUT THE CAR DOING THE SAME THING TO OTHER CLARITY OWNERS AND THIS IS A HIGHLY DANGEROUS SITUATION THAT HONDA SHOULD TAKE CARE OF! REINEKE HONDA IN FINDLAY…

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CAR REVS UP WHEN DRIVING DOWN THE HIGHWAY BUT DROPS SPEED TO 10MPH. IT HAS DONE THIS 2 TIMES ONCE IN TOWN AND ONCE ON US 23 WHILE DRIVING 70MPH. THEIR ARE SEVERAL COMPLAINTS ABOUT THE CAR DOING THE SAME THING TO OTHER CLARITY OWNERS AND THIS IS A HIGHLY DANGEROUS SITUATION THAT HONDA SHOULD TAKE CARE OF! REINEKE HONDA IN FINDLAY OHIO HAD MY CAR FOR ABOUT 3 WEEKS AND WHILE TEST DRIVING IT THE CAR DID THE SAME THING FOR THE SERVICE MANAGER MIKE STEVENS. THEY TOOK A CONTROL BOX OFF A BRAND NEW CLARITY PER HONDA'S SUGGESTION AND I AM DRIVING THE CAR AND HAD NO NEW PROBLEMS SO FAR. THEY WERE NOT SURE THIS WOULD FIX THE ISSUE BUT SO FAR IT HASN'T HAPPENED AGAIN. THIS IS A DANGEROUS FAILURE IN THE CAR AND I AM LUCKY I WASN'T DRIVING IN COLUMBUS, OHIO THE 2ND TIME THE CAR DID IT OR I WOULD HAVE BEEN REAR ENDED! HONDA NEEDS TO MAKE SURE THIS PROBLEM IS FIXED!!!

NHTSA ODI #11182295

100 miles · Feb 21, 2019
Electrical SystemEnginePower Train

3 DAYS AFTER PURCHASE I WAS DRIVING ON AN INTERSTATE WHEN THE CAR SUDDENLY LOST ALL POWER. I MANAGED TO PULL TO A SLOW LANE BUT THE LACK OF POWER CONTINUED FOR ANOTHER 5 MINUTES. IT HAD BEEN RUNNING ON BATTERY JUST PRIOR AND I HAD 2 BARS OF POWER LEFT. THE OUTSIDE TEMPERATURE WAS ABOUT 15 DEGREES. THE INTERNAL COBUSTION ENGINE B…

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3 DAYS AFTER PURCHASE I WAS DRIVING ON AN INTERSTATE WHEN THE CAR SUDDENLY LOST ALL POWER. I MANAGED TO PULL TO A SLOW LANE BUT THE LACK OF POWER CONTINUED FOR ANOTHER 5 MINUTES. IT HAD BEEN RUNNING ON BATTERY JUST PRIOR AND I HAD 2 BARS OF POWER LEFT. THE OUTSIDE TEMPERATURE WAS ABOUT 15 DEGREES. THE INTERNAL COBUSTION ENGINE BEGAN TO RACE BUT ONLY BEGAN TO GIVE ADEQUATE POWER TO THE WHEELS AFTER 5 MINUTES. A TERRIFYING EXPERIENCE. HONDA CHECKED OUT THE CAR AND SAID NOTHING WAS WRONG. I AM HEARING OF OTHER CASES BEING REPORTED LIKE MINE.

NHTSA ODI #11181572

100 miles · Feb 5, 2019
EnginePower TrainVehicle Speed Control

WHEN VEHICLE IS IN ANY MODE THAT REQUIRE THE INTERNAL COMBUSTION ENGINE, IT PERSISTENTLY GETS STUCK IN A HIGH REV, HIGH RPM, STATE AT ANY SPEED. THIS CAUSES POWER FLUCTUATIONS AND EXTREME ENGINE NOISE. THIS CREATES CHALLENGING AND POTENTIALLY UNSAFE DRIVING CONDITIONS DUE TO THE SENSITIVE STATE OF THE ENGINE WHEN STUCK IN THIS…

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WHEN VEHICLE IS IN ANY MODE THAT REQUIRE THE INTERNAL COMBUSTION ENGINE, IT PERSISTENTLY GETS STUCK IN A HIGH REV, HIGH RPM, STATE AT ANY SPEED. THIS CAUSES POWER FLUCTUATIONS AND EXTREME ENGINE NOISE. THIS CREATES CHALLENGING AND POTENTIALLY UNSAFE DRIVING CONDITIONS DUE TO THE SENSITIVE STATE OF THE ENGINE WHEN STUCK IN THIS MODE.

NHTSA ODI #11174607

895 miles · Feb 3, 2019
EnginePower Train

LOSS OF POWER AND ENGINE COMES ON WITH HIGH REVS WHILE CAR IS MOVING. IN HV MODE ENGINE REVS ARE CONTINUES EVEN THOUGH I HAVE 20 MILES OF EV RANGE. I HAD POWER LOSS TWICE NOW IN SLOW SPEED AROUND 30 MILES/HR ANDT 65 MILES/HR

NHTSA ODI #11173847

500 miles · Jan 29, 2019
Engine

I AM SUBMITTING MY ONLYCOMPLAINT ABOUT MY NEW HONDA CLARITY. THIS IS A KNOWN ISSUE BY HONDA THAT IS ALL OVER THE INTERNET YET IT APPEARS HONDA IS IGNORING THE ISSUE. THE CLARITY LOOSES POWER WHEN IT CONVERTS FROM BATTERY TO ENGINE POWER UPON LOW BATTERY STATUS. THIS IS DRASTICALLY NOTICED IF THE VEHICLE IS TRAVELING AT A HIGH…

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I AM SUBMITTING MY ONLYCOMPLAINT ABOUT MY NEW HONDA CLARITY. THIS IS A KNOWN ISSUE BY HONDA THAT IS ALL OVER THE INTERNET YET IT APPEARS HONDA IS IGNORING THE ISSUE. THE CLARITY LOOSES POWER WHEN IT CONVERTS FROM BATTERY TO ENGINE POWER UPON LOW BATTERY STATUS. THIS IS DRASTICALLY NOTICED IF THE VEHICLE IS TRAVELING AT A HIGH SPEED SUCH AS THE 75 MPH SPEED LIMIT OF OUR INTERSTATES IN NEBRASKA OR IF THE VEHICLE IS UNDER HARD ACCELERATION SUCH AS WHEN I WAS ENTERING THE INTERSTATE FROM THE ON RAMP. INSTEAD OF MERGING INTO 75 MPH TRAFFIC I BECAME AN ACCIDENT WAITING TO HAPPEN AS THE CAR WOULD NOT ACCELERATE BEYOND ABOUT 40-50 MPH FOR APPROXIMATELY 1 MILE. MY DEALER SAID HONDA IS DENYING THAT THIS IS A PROBLEM EVEN THOUGH THERE ARE MANY SIMILAR COMPLAINTS ON THE INTERNET. SOMEONE IS GOING TO GET IN A BAD ACCIDENT DUE TO THIS MAJOR MANUFACTURER DEFECT.

NHTSA ODI #11172789

6,000 miles · Jan 23, 2019
Engine

I HAVE ADVISED THE DEALERSHIP THAT I ONLY HAD ABOUT 3 HOURS OF HIGHWAY MILES ON MY ICE BUT AT 6000 MILES THE CAR ALERTED ME TO BRING IN MY CAR FOR SERVICE. I WANT TO TAKE CARE OF MY CAR BUT THE MINTAINANCE COST AND NEEDLESLY CHANGING THE ENGINE OIL AND FITER STEERS ME AWAY FROM TRUSTING THE MAINTANANCE SUGGESTED TO US BY HOND…

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I HAVE ADVISED THE DEALERSHIP THAT I ONLY HAD ABOUT 3 HOURS OF HIGHWAY MILES ON MY ICE BUT AT 6000 MILES THE CAR ALERTED ME TO BRING IN MY CAR FOR SERVICE. I WANT TO TAKE CARE OF MY CAR BUT THE MINTAINANCE COST AND NEEDLESLY CHANGING THE ENGINE OIL AND FITER STEERS ME AWAY FROM TRUSTING THE MAINTANANCE SUGGESTED TO US BY HONDA. EVERYONE KNOWS DEALERS MAKE MORE PROFIT FROM MAINTANANCE THAT FROM SALES. IF CLARITY CUSTOMERS (AND ALL HYBRID CARS THAT USE A COMBINATION OF ELECTRIC PROPULSION AND INTERNAL CUMBUSTION) ARE NEEDLESSLY PAYING DEALERSHIPS FOR MAINTAINANCE I SEE A FORM OF CUSTOMER DECIEPT. I WOULDNT BE SURPRISED IF HONDA WOULD SHOW ME A DOCUMENT PROVING TO DEALERSHIPS THAT THE SALE OF THIS CAR WILL MAKE MAINTAINANCE FASTER, CHEAPER, AND REQUIRE LESS MECHANICALLY SKILLED LABOR TO SERVICE - THUS ALLOWING THE DEALERSHIP TO MAKE THE NECESSARY CHANGES TO THEIR SEVICE CENTERS.

NHTSA ODI #11171627

4,300 miles · Dec 18, 2018
EnginePower Train

I HAVE ONLY HAD THE CAR 2 MONTHS, BUT TWICE SO FAR, WHILE TRAVELING DOWNHILL AT 45 MPH, THE ENGINE BEGAN TO REV TO ITS REDLINE AND THERE WAS NO POWER TO ACCELERATE IN HV MODE. THIS WAS QUITE DANGEROUS IN ONE INSTANCE AS I WAS UNABLE TO ACCELERATE ONTO A HIGHWAY.

NHTSA ODI #11162362

10 miles · Nov 23, 2018
Engine

4 TIMES ENGINE WENT INTO EXTREME HIGH REV LIKE BEING STUCK WIDE OPEN IN FIRST GEAR WITH SUDDEN LOSS OF SPEED TWICE ON THE FREEWAY. EXTREMELY DANGEROUS. REPORTED TO HONDA, THEY DENIED EVERYTHING AND MAINTAINED THAT "HIGH REVS" IS NORMAL AS STATED IN THE OWNERS MANUAL. TIS IS EXTREME HIGH REVS AND SUDDEN LOSS OF SPEED, IT IS NOT N…

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4 TIMES ENGINE WENT INTO EXTREME HIGH REV LIKE BEING STUCK WIDE OPEN IN FIRST GEAR WITH SUDDEN LOSS OF SPEED TWICE ON THE FREEWAY. EXTREMELY DANGEROUS. REPORTED TO HONDA, THEY DENIED EVERYTHING AND MAINTAINED THAT "HIGH REVS" IS NORMAL AS STATED IN THE OWNERS MANUAL. TIS IS EXTREME HIGH REVS AND SUDDEN LOSS OF SPEED, IT IS NOT NORMAL. 5 OR 6 OTHER CLARITY OWNERS ARE COMPLAINING ABOUT THIS ISSUE AND ABOUT HONDA IGNORING THE ISSUE. I REQUESTED THROUGH ARBITRATION TO BE REIMBURSED AS I BROUGHT MY CAR FOR REPAIR 4 TIMES (2 DIFFERENT DEALERS) AND FOR A MULTITUDE OF ELECTRONIC ISSUES RELATED TO HV. HONDA DENIED EVERYTHING AND FOUND EXCUSES FOR EVERY SINGLE ISSUE. I WAS DENIED REIMBURSEMENT AND NOW I AM STILL STUCK WITH THE SAME PROBLEMS THAT CONTINUE EVERY DAY! I HAVE DETAILED NOTES, DATES, VIDEOS, PHOTOS, TESTIMONIES OF OTHER OWNERS THAT I WOULD BE HAPPY TO SHARE. THE DAY OF THE ARBITRATION THE CAR WOULD NOT START BUT ARBITRATOR SAID HE COULD NOT USE IT AS IT WAS NOT PART OF THE ORIGINAL ISSUE. SOMETHING NEEDS TO BE DONE BEFORE SOMEONE GETS KILLED DRIVING THIS VEHICLE. I EVEN OPENED A CLAIM WITH MY INSURANCE AGENCY IN CASE I GET INTO AN ACCIDENT BECAUSE OF THE CAR DOING WHATEVER IT WANTS. THANKS

NHTSA ODI #11153434

4,000 miles · Oct 26, 2018
Electronic Stability Control (esc)Engine

MOSTLY ALL THE TIME, THE ENGINE KICKS IN (CHARGE MODE) EVEN THE BATTERY IS AT FULL CHARGE. MOSTLY ALL THE TIME, HIGHWAY DRIVING OR JUST PICKING UP.. THE ENGINE IS AT ECO MODE, THE GAS ENGINE IS WORKING AT HIGH RPM. SOUNDS JUST LIKE A REGULAR ENGINE CAR AT 8RPM SOUND. SPEED AT 65MPH.

NHTSA ODI #11142774

Official recalls

1

23V858000 · Fuel System, Gasoline:delivery:fuel Pump

Dec 18, 2023

Honda (American Honda Motor Co.) is recalling certain 2013-2023 Honda Accord, Civic Coupe, Civic Sedan, Civic Hatchback, Civic Type R, CR-V, HR-V, Ridgeline, Odyssey, Acura ILX, MDX, MDX Hybrid, RDX, RLX, TLX, 2019-2022 Honda Insight, Passport, 2020 Honda CR-V Hybrid, 2018-2019 Honda Clarity PHEV, Fit, and 2015-2020 Honda Accord Hybrid, Pilot, Acura NSX vehicles. The fuel pump inside the fuel tank may fail.

Consequence & remedy

Consequence: Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.

Remedy: Dealers will replace the fuel pump module, free of charge. Owner letters were mailed September 6, 2024. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are KGC and KGD. This recall is an expansion of NHTSA recall numbers 21V-215 and 20V-314.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

1

DP22005 · Pedestrian Alert Sounds

Opened Jan 27, 2023 · Closed Aug 7, 2023

Status: closed (inferred from source dates) · Electrical System:propulsion System

NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after March 1, 2021.On January 27, 2023, NHTSA opened Defect Petition (DP) 22-005 to evaluate the subject matter described in the petition. On June 24, 2023 and as supplemented on June 25, 2023, the petitioner notified NHTSA he was withdrawing his petition. The petitioner indicated that, based on his review of data, there is no justification for asserting potential benefits that could be derived from actions sought by my petition. Based on the petitioner's withdrawal, DP22-005 is closed. Closure of this DP does not represent a determination by NHTSA regarding the subject matter of the petition.