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2018 Honda CLARITY PLUG-IN HYBRID problems and owner complaints

Explore the records behind recurring owner reports.

Key facts

134 owner complaints analyzed

1 distinct recall campaigns

2,763 mi median reported failure mileage

Scope: 2018 model year. Data snapshot: . 64 complaints include usable failure mileage.

Owner-reported patterns

Most common problems

Engine is the most frequently named component, appearing in 25 of 134 complaints (18.7%). A complaint can name multiple components.

Recurring terms in complaint narratives
TopicMatching reportsShare of complaints
Braking behavior2317.2%
Electrical and battery issues2317.2%
Fuel system concerns118.2%
Engine operation107.5%
Transmission and shifting64.5%
Steering behavior43.0%

Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.

Component breakdown

Number of unique complaints naming each component. Top eight shown.

Engine
25
Fuel/Propulsion System
23
Unknown Or Other
20
Power Train
19
Electrical System
18
Fuel System, Gasoline
15
Vehicle Speed Control
11
Service Brakes
10
Component breakdown data
CategoryCount
Engine25
Fuel/Propulsion System23
Unknown Or Other20
Power Train19
Electrical System18
Fuel System, Gasoline15
Vehicle Speed Control11
Service Brakes10

Engine: 25; Fuel/Propulsion System: 23; Unknown Or Other: 20; Power Train: 19; Electrical System: 18; Fuel System, Gasoline: 15; Vehicle Speed Control: 11; Service Brakes: 10

Reported problems by failure mileage

Complaint counts in mileage bands. These are not failure rates per vehicle or mile.

Under 25,000
58
25,000 to 49,999
2
50,000 to 74,999
2
75,000 to 99,999
0
100,000 to 149,999
2
150,000 and above
0
Reported problems by failure mileage data
CategoryCount
Under 25,00058
25,000 to 49,9992
50,000 to 74,9992
75,000 to 99,9990
100,000 to 149,9992
150,000 and above0

Under 25,000: 58; 25,000 to 49,999: 2; 50,000 to 74,999: 2; 75,000 to 99,999: 0; 100,000 to 149,999: 2; 150,000 and above: 0

Under 25,000 miles has the most reports with usable mileage (58). 70 complaints have missing, zero or invalid mileage.

Complaints over time

Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.

2018
32
2019
23
2020
7
2021
5
2022
6
2023
6
2024
39
2025
5
2026
11
Complaints over time data
CategoryCount
201832
201923
20207
20215
20226
20236
202439
20255
202611

2018: 32; 2019: 23; 2020: 7; 2021: 5; 2022: 6; 2023: 6; 2024: 39; 2025: 5; 2026: 11

Pattern summary

Engine leads the component reports. Braking behavior appears in 23 complaint narratives. Electrical and battery issues appears in 23 complaint narratives. Fuel system concerns appears in 11 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.

Calculated from recorded counts. An AI narrative has not been published for this selection.

Complaint evidence

Examples provide context, not a representative sample or a verified diagnosis.

Owner report 11100139 · 2018-06-06 (June 6, 2018)

AT THE TIME OF THE OCCURRENCE THE VEHICLE HAD BEEN OWNED FOR APPROXIMATELY 90 DAYS AND HAD APPROXIMATELY 2500 MILES ON THE ODOMETER. WHEN INITIALLY STARTED IN A STATIONARY POISTION THE INFORMATION DISPLAY PROVIDED MULTIPLE APPARENTLY SPURIOUS ALARMS AND WARNINGS. THESE WARNINGS CONTINUED WHEN THE VEHICLE WAS IN MOTION. TURNING THE VEHICLER OFF AND RESTARTING THE VEHICLEWOULD NOT CLEAR THE WARNINGS. THE DISPLAY WOULD CYCLE DISPLAYING *ADAPTIVE CRUISE CONTROL PROBLEM*,*LANE DEPARTURE MITIGATION SYSTEM PROBLEM*, AND *EMMISSIONS CONTROL SYST…

Owner-reported narrative. 2,525 miles reported. Look up ODI 11100139 at NHTSA ↗

Owner report 11109834 · 2018-07-06 (July 6, 2018)

ALTHOUGH CAR LESS THAN ONE WEEK OLD AND UNDER 470 MILES, ALL THE WARNING INDICATORS ILLUMINATED ON THE INSTRUMENT PANEL WHILE VEHICLE WAS STATIONARY AFTER STARTING THE CAR: ENGINE SYSTEM PROBLEM, BRAKE SYSTEM PROBLEM, ADAPTIVE CRUISE CONTROL PROBLEM, ROAD DEPARTURE MITIGATION SYSTEM PROBLEM. TURNING CAR OFF AND RESTARTING ENGINE DID NOT CLEAR THE PROBLEM, AND LIGHTS REMAINED ON WHILE DRIVING. VEHICLE WAS TAKEN TO DEALERSHIP WHERE IT WAS PURCHASED (HONDA OF PASADENA).

Owner-reported narrative. 470 miles reported. Look up ODI 11109834 at NHTSA ↗

Owner report 11079907 · 2018-03-17 (March 17, 2018)

VEHICLE ENGINE RESPONDED TO ACCELERATOR PEDAL INPUT, BUT WOULD NOT TRAVEL AT GREATER THAN 25 MILES PER HOUR ON SLIGHT UPHILL. VEHICLE HAD BEEN STARTED AFTER BEING OFF FOR APPROXIMATELY TWO HOURS. HIGH VOLTAGE BATTERY WAS DRAINED AND VEHICLE WAS OPERATING EXCLUSIVELY ON GAS ENGINE. VEHICLE HAD BEEN ION "ON" CONDITION FOR SEVERAL MINUTES PRIOR TO STARTING DRIVING. VEHICLE HAD TO BE PULLED INTO NEARBY BUSINESS, SINCE IT COULD NOT MAINTAIN SPEED WITH FLOW OF TRAFFIC ON 50 MOH ROAD. PROBLEM RESOLVED AFTER APPROXIMATELY TWO MINUTES OF SLOW DRIVING. …

Owner-reported narrative. 3,500 miles reported. Look up ODI 11079907 at NHTSA ↗

Owner report 11091184 · 2018-05-01 (May 1, 2018)

I FILLED THE SEVEN GALLON GAS TANK YESTERDAY, AND THE DASHBOARD RANGE DISPLAY CALCULATED THE RANGE OF THE CAR ON GAS POWER AS 871 MILES. I HAVE BEEN DRIVEN MOSTLY ON ELECTRIC BATTERY POWER, BUT WITH ONLY SEVEN GALLONS OF GAS IN THE TANK, THAT RANGE IS ABSURD. NEW DRIVERS OF THE VEHICLES MIGHT BELIEVE THE RANGE AND INADVERTENTLY STRAND THEMSELVES SOMEWHERE.

Owner-reported narrative. 1,470 miles reported. Look up ODI 11091184 at NHTSA ↗

Owner report 11097193 · 2018-05-22 (May 22, 2018)

VEHICLE RANGE CALCULATION IS INCORRECT FOR HIGHWAY/LONG DISTANCE TRAVEL. THE RANGE ESTIMATE SHOWS OFF EVEN WHEN FUEL LEVEL IS VERY LOW. FOR EXAMPLE, WHEN STARTING A TRIP IT MIGHT SHOW 1000 MILES RANGE. ON THE HIGHWAY, THIS WILL COUNT DOWN VERY QUICKLY, 1 MILE DRIVEN MIGHT COUNT DOWN 4 MILES OF ESTIMATED RANGE. THE PROBLEM IS THAT THIS RANGE ESTIMATE DOESN'T UPDATE QUICKLY ENOUGH TO REFLECT THAT THE PLUG-IN HYBRID VEHICLE IS DRIVING ON A LONG TRIP INSTEAD OF AROUND TOWN AND THE RANGE WON'T BE NEAR AS MUCH SINCE IT ISN'T ADDING ELECTRICITY …

Owner-reported narrative. 6,000 miles reported. Look up ODI 11097193 at NHTSA ↗

Owner report 11129500 · 2018-09-14 (September 14, 2018)

THE CLARITY PHEV IS INCOMPATIBLE WITH PUBLIC CHARGING STATIONS (E.G. CHARGEPOINT) THAT FEATURE DUAL CHARGING PORTS AND AN ENERGY MANAGEMENT CONTROLLER (EMC). THE VEHICLE'S ONBOARD CHARGER WILL SHUT OFF WHEN IT SENSES THE CHARGING STATION'S EMC IS ACTIVATED WHEN BOTH PORTS ARE ENGAGED FOR SIMULTANEOUS CHARGING. MULTIPLE FAILED ATTEMPTS TO RESTART CHARGING WILL RESULT IN A "TOTAL SYSTEM FAILURE" WARNING FROM THE INSTRUMENT PANEL CAUSING THE VEHICLE TO NOT START AND DRIVE. OWNERS COULD BE STUCK IN A PARKING STALL FOR UP TO 4 HOURS TO ALLOW THE S…

Owner-reported narrative. 3,500 miles reported. Look up ODI 11129500 at NHTSA ↗

Owner report 11132244 · 2018-09-29 (September 29, 2018)

TWICE I EXPERIENCED EXTREME HIGH REVS (LIKE THE CAR WAS IN NEUTRAL AND YOU HAVE THE PEDAL TO THE METAL)WITH ABSOLUTE LOSS OF POWER AND SPEED DOWN TO 30 MPH FIRST TIME ON FREEWAY & 10 MPH SECOND TIME ON HIGHWAY. HAPPENED TWICE WHEN BATTERY WAS LOW (EACH TIME BATTERY DISPLAY ACTUALLY WENT DOWN TO 1 BAR WHICH I'VE BEEN TOLD BY DEALER THAT IT IS IMPOSSIBLE TO GO BELOW 2 BARS WHEN HV KICKS IN) AND ON SLIGHT INCLINE. SUPER SCARY DANGEROUS, FAMILY SCREAMING OF FEAR INSIDE VEHICLE)! ALSO HAVE RANGE DISPLAY ERROR, ENGINE TURNING ON WHEN BATTERY IS FULL …

Owner-reported narrative. 200 miles reported. Look up ODI 11132244 at NHTSA ↗

Owner report 11166782 · 2019-01-13 (January 13, 2019)

AFTER SEVERAL MILES AND DEPLETION OF ELECTRIC STORAGE AND WHILE CLIMBING A SIGNIFICANT GRADE THE TRANSMISSION FELT AS IF IT WAS SLIPPING NOT ABLE TO CLIMB THE GRADE. HAD TO MAKE AN EVASIVE MANEUVER CROSSING ON COMING TRAFFIC LANE (CLEAR) TO GET OFF THE HIGHWAY (101) . THE VEHICLE WOULD NOT PULL THE HILL AND SLOWED TO 25 MPH ON A TURN,IN A 55 MPH ZONE , TWO LANE , MOUNTAIN ROAD. TURNED OFF THE VEHICLE, AFTER STOPPING, NO CODES OR SERVICE LIGHTS ACTIVE. AFTER A FEW MINUTES I STARTED THE VEHICLE AND IT WAS RUNNING AT A HIGHER RPM THAN NORMAL …

Owner-reported narrative. 5,385 miles reported. Look up ODI 11166782 at NHTSA ↗

Owner report 11118738 · 2018-08-09 (August 9, 2018)

TL* THE CONTACT OWNED A 2018 HONDA CLARITY PLUG-IN HYBRID. WHILE DRIVING 30 MPH AND MAKING A RIGHT TURN INTO A PARKING LOT, THE VEHICLE ACCELERATED INDEPENDENTLY WITHOUT WARNING. THE STEERING WHEEL SEIZED AND THE CONTACT CRASHED INTO A STORE. THE FRONT DRIVER AND PASSENGER AIR BAGS FAILED TO DEPLOY. THE CONTACT SUSTAINED SHOULDER AND COLLARBONE INJURIES THAT REQUIRED MEDICAL ATTENTION. THE FRONT PASSENGER DID NOT SUSTAIN INJURIES. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO A TOW LOT. THE VEHICLE WAS NOT TAKEN TO A DEALER OR AN INDEPEND…

Owner-reported narrative. 1,100 miles reported. Look up ODI 11118738 at NHTSA ↗

Owner report 11171620 · 2019-01-23 (January 23, 2019)

INFOTAINMENT ISSUE: SCREEN FREEZING AND / OR NON RESPONSIVE. MANY HONDA CLARITY OWNERS ARE EXPERIENCING THIS AND DEALERS ARE AWARE OF OWNERS MENTIONING THIS ISSUE. NORMALLY, A "TECH" ISSUE IS EXPECTED IN THIS DAY AND AGE BUT SINCE THE CLIMATE CONTROL, THE REAR VIEW CAMERA AND THE BLIND SPOT CAMERA SAFETY MECHANISMS RELY ON THE MAIN INFOTAINMENT SYSTEM SCREEN ANY TYPE OF LAG OR FREEZING IS A DIRECT HAZARD TO OUR DAILY DRIVE AND TO OTHERS AROUND US. IT IS ONLY A MATER OF TIME BEFORE SOMEONE GETS HURT. WE ARE ASKING HONDA TO PROACTIVELY …

Owner-reported narrative. 100 miles reported. Look up ODI 11171620 at NHTSA ↗