2018 Honda Clarity Plug-In Hybrid Fuel System Problems

Mileage when the problem started

• Under 25k
  1179%
• 25k–50k
  00%
• 50k–75k
  17%
• 75k–100k
  00%
• 100k–150k
  214%
• 150k+
  00%

Owner reports

Selected complaints filed with NHTSA by 2018 Honda Clarity Plug-In Hybrid owners, lightly cleaned up (personal details are redacted by NHTSA).

The contact owns a 2018 Honda Clarity Plug in Hybrid. The contact received notification of NHTSA Campaign Number: 23V858000 (Fuel System, Gasoline) however, the part to do the recall repair was not yet available. The contact stated that his wife informed him that the vehicle failed to start upon pushing the "Push to Start" button. The contact stated that his wife was able to start the vehicle after several attempts. Additionally, the contact stated while his wife was driving at an undisclosed speed downhill and depressing the accelerator pedal, the engine revved, but the vehicle failed to respond. The contact was unaware if there any warning light was illuminated. The contact's wife was able to drive to her destination. The vehicle was taken to the dealer, where the failure could not be duplicated. The vehicle was not diagnosed or repaired. …

Here is an update to the issue I had raised with your office in March-April 2026: Honda Van Nuys performed the 35,000-mile routine maintenance on the Honda Clarity on February 24, 2026. At that time, Honda Van Nuys recommended (and I approved) that they clean the throttle. The odometer read 33,882 miles. I drove the car 337 miles when the unintended acceleration accident occurred on March 18, 2026 - 2.5 weeks after Honda Van Nuys cleaned the throttle. The airbags deployed. The throttle seems to be the part that failed based on the attached EDR report. The odometer read 34,219 at that time. The car is now considered totaled by GEICO. In addition, Honda Van Nuys has done all maintenance work on the Honda Clarity, including some major removal of the dashboard and back seats, since I purchased the car there in 2018, as outlined in the attachment. …

The contact owns a 2018 Honda Clarity Plug-In Hybrid. The contact stated while driving 10 MPH, the check engine warning light illuminated. The contact received notification of NHTSA Campaign Number: 23V858000 (Fuel System Gasoline); however, the part to do the recall repair was unavailable. The dealer was made aware of the failure; however, the contact was informed that the parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure. The failure mileage was 120,000. Parts distribution disconnect.

The contact owns a 2018 Honda Clarity Plugin Hybrid. The contact stated that after an extensive driving period, there was an abnormal sewage odor coming from the vehicle without warning. The contact was then alerted by a passenger in the vehicle that the odor was coming from the toxic gases coming from the battery. The manufacturer was notified of the issue. Upon investigation, the contact was concerned that an improper hybrid battery was installed in the vehicle. The vehicle was not repaired. The failure mileage was approximately 120,000. The VIN was not available.

The contact owns a 2018 Honda Clarity Plug-in-Hybrid. The contact stated while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that the RPM increased significantly. The vehicle was taken to the dealer where it was diagnosed with fuel pump failure. The contact was informed that the fuel pump needed to be replaced. The vehicle was not repaired. Additionally, the contact stated that the failure had occurred when the vehicle was first purchased, and the failure had become persistent. The contact received notification of NHTSA Campaign Number: 23V858000 (Fuel System, Gasoline) however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. …

The contact owns a 2018 Honda Clarity Plug-In Hybrid. The contact received notification of NHTSA Campaign Number: 23V858000 (Fuel System, Gasoline); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that due to a limited supply of parts, the manufacturer was prioritizing the repair of vehicles experiencing symptoms related to the recall first. The manufacturer was made aware of the issue and confirmed the prioritizing of the repair of vehicles experiencing symptoms related to the recall. The contact had not experienced a failure. Parts distribution disconnect.

The contact owns a 2018 Honda Clarity Plug-in-Hybrid. The contact received notification of NHTSA Campaign Number: 23V858000 (Fuel System, Gasoline); however, the part to do the recall repair was unavailable. Additionally, several dealers were contacted, and the contact was informed that the parts were unavailable. The contact was informed that a diagnostic test was needed to confirm a failure, due to the limited parts that were available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure and a case was filed. The contact had not experienced a failure. Parts distribution disconnect.

The contact owns a 2018 Honda Clarity Plug-In Hybrid. The contact received notification of NHTSA Campaign Number: 23V858000 (FUEL SYSTEM, GASOLINE); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that occasionally the check engine warning light was illuminated. The vehicle was taken to a dealer and was inspected but not diagnosed. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

The contact owns a 2018 Honda Clarity Plug-In Hybrid. The contact received notification of NHTSA Campaign Number: 23V858000 (Fuel System, Gasoline); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure. VIN tool confirms parts not available.

The contact owns a 2018 Honda Clarity Plug-In Hybrid. The contact received notification of NHTSA Campaign Number: 23V858000 (Fuel System, Gasoline) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure. VIN tool confirms parts not available.

Related recalls

Fuel System complaints in other Clarity Plug-In Hybrid years