RoadVitals

2019 Honda Clarity Plug-In Hybrid Engine Problems

Owner-reported complaints naming the engine system, filed with NHTSA

Data refreshed

Engine reportsComplaints 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.
10
Latest Nov 18, 2024
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
24%
of 42 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
0
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
0

What this page shows

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components. Every record below is an owner-reported complaint about the 2019 Honda Clarity Plug-In Hybrid submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 10 reports on file name it.

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

Owner reports naming engine

Shown in the owner’s own words, exactly as filed

EngineFuel system
Filed Nov 18, 2024

I am writing to express my serious concern regarding the safety recall for my 2019 Honda Clarity (VIN: [XXX] ). The recall, dated February 2024, pertains to a potential fuel pump failure that could cause engine stalling while driving, posing a significant safety risk. Despite the severity of this issue, I have encountered significant delays and difficulties in getting the necessary repairs completed at my local Honda dealerships. When I contacted them about the recall immediately after receiving notice, I was informed that they do not have the required parts in stock. Furthermore, the date at which the dealers said that they would be receiving the parts continues to get pushed back from the estimated timeframe for receiving these parts, initially stating it would be 2-3 months, but this has been an ongoing issue with no resolution in sight and well past 60 days. This prolonged delay is unacceptable given the potential safety implications. The recall notice clearly states that a fuel pump failure could lead to an engine stall while driving, increasing the risk of a crash. I am deeply concerned about my safety and that of my passengers while operating this vehicle. I respectfully request that Honda take immediate action to: 1. Expedite the delivery of the necessary parts to my local dealership. 2. Provide a firm date for when the recall repair can be completed on my vehicle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID
11625961
Incident
Feb 1, 2024
Driver assistanceEngine
Filed Aug 20, 2024

The contact owns a 2019 Honda Clarity Plug-In Hybrid. The contact stated while driving at an undisclosed speed, the vehicle lost motive power while depressing the accelerator pedal. There was no warning light illuminated. The vehicle was taken to a local dealer to be diagnosed; however, the failure could not be duplicated. The vehicle was taken to another local dealer, Honda of Escondido (1700 Auto Park Way Escondido, CA 92029); where the vehicle was diagnosed but the failure could not be duplicated. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 125,000.

NHTSA ID
11609826
Incident
Apr 15, 2024
Mileage
125,000 mi
EnginePowertrain (other)
Filed Jan 23, 2023

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 ID
11503147
Incident
Jan 21, 2023
Engine
Filed Nov 22, 2022

This is a 2019 Honda Clarity hybrid vehicle, with 53000 miles at the time of incident. I was driving up hill going about 55 miles per hour, all of the sudden the speed kept dropping even though the gas pedal remained pressed. Pressing the gas pedal more had no effect on speed, except to increase the engine RPM and the high-pitched noise. Luckily I was on the right lane. Pulled the car over to the shoulder and turned it off. The problem went away after restart. From researching on google, this seems to be a quite common occurrence with Honda Clarity. Since it couldn't be replicated at will, it's difficult to solve. There are speculations online that it could be software related, but my honda dealer wouldn't document the issue.

NHTSA ID
11494624
Incident
Nov 21, 2022
EngineFuel system
Filed Jan 22, 2022

Car engine makes loud banging noise when it is running on gas instead of electrical battery. I had asked Honda dealer to review but they say they can not do anything about it. It is feels as if car making so much banging noise from engine has inherent issue and will eventually catch fire.

NHTSA ID
11448485
Incident
Jan 22, 2022
Engine
Filed Jul 26, 2020

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 ID
11341513
Incident
Jul 25, 2020
Mileage
30 mi
Engine
Filed Jul 5, 2020

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. THIS ISSUE OCCURRED BEFORE ON JULY 27,2020 WHEN MY WIFE DROVE THE CAR AND CONPLAINED ABOUT IT DRIVING SLOW AND ENGINE REVVING LOUD. THIS CAR HAS ONLY 1,884 MILES ON IT AND WAS BOUGHT IN JANUARY 2020. LEMON LAW.

NHTSA ID
11337549
Incident
Jul 4, 2020
Mileage
20 mi
Driver assistanceEngine
Filed Jun 24, 2020

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. *TR

NHTSA ID
11330558
Incident
Jun 15, 2020
Mileage
12,500 mi
Engine
Filed Oct 16, 2019

TL* THE CONTACT OWNS A 2019 HONDA CLARITY PLUG-IN HYBRID. WHEN THE VEHICLE SWITCHED FROM RUNNING ON THE BATTERY TO FUEL, THE VEHICLE LOST POWER. IN ADDITION, THE ENGINE RAN ON VERY HIGH RPMS AND THE VEHICLE LOST POWER WITHOUT WARNING AND CAME TO A COMPLETE STOP WHILE DRIVING 65 MPH. THE CONTACT COASTED THE VEHICLE TO THE SIDE OF THE ROAD AND POWERED OFF THE ENGINE. THE VEHICLE WAS RESTARTED, BUT THE FAILURE RECURRED. THE CONTACT STATED THAT THE FAILURE RECURRED TWICE, BUT THE VEHICLE WAS NOT TAKEN TO A DEALER OR AN INDEPENDENT MECHANIC FOR DIAGNOSTIC TESTING. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 100.

NHTSA ID
11268872
Incident
Oct 4, 2019
Mileage
100 mi
Driver assistanceEngine
Filed Apr 26, 2019

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 ID
11204059
Incident
Apr 21, 2019
Mileage
600 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.

Other components reported on this vehicle

Categories with enough reports to have a page of their own

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .