2018 Honda Clarity Fuel Cell problems, complaints & recalls
Most-reported problem areas: Vehicle Speed Control (1) · Fuel/Propulsion System (1)
Safety recalls (2)
Equipment:electrical 2019-04-18 · campaign 19V315000 · 1,082 vehicles
Defect: Honda (American Honda Motor Co.) is recalling certain 2017-2018 Clarity Fuel Cell vehicles. Internal components may corrode and cause the water pump to fail.
Risk: A failure of the water pump can cause the vehicle to stall, increasing the risk of crash.
Fix: Honda will notify owners, and dealers will replace the water pump, free of charge. The recall began June 10, 2019. Owners may contact Honda customer service at 1-888-234-2138. Honda's number for this recall is L4N.
Hybrid Propulsion System 2018-12-20 · campaign 18V921000 · 1,082 vehicles
Defect: Honda (American Honda Motor Co.) is recalling certain 2017-2018 Clarity Fuel Cell vehicles previously repaired under recall 18V-068. The previous software remedy may have been incomplete. As a result, the fuel cell control unit (FC-ECU) may misinterpret a small cell voltage drop, causing the vehicle to have a partial or complete loss of power.
Risk: A loss of power can increase the risk of a crash.
Fix: Honda has notified owners, and dealers will update the FC-ECU software, free of charge. The recall began February 14, 2019. Owners may contact Honda customer service at 1-888-234-2138. Honda's number for this recall is A3O.
Service bulletins (20)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Electrical System 2022-09-21 · ONL6CK09212022 · Service Bulletin/Repair Instructions
owner's notification letter - product update - our records indicate that a product update has not been completed on this vehicle (vehicle identification number xxxxxxxxxxxxxxxxx). the software that monitors the temperature in the fuel cell tank may not be up to date. this may cause the vehicle to in
Electrical System 2022-09-16 · A22090A · Service Bulletin/Repair Instructions
dealer message - in the event you experience a sub tank wire harness rodent damage on the 2017â2020 clarity fcv, after repairing / replacing the wire harness, wrap the areas shown below with rodent deterrent tape, p/n 4019-2317.
Fuel System, Gasoline 2020-12-09 · A20-092 · Service Bulletin/Repair Instructions
service bulletin - the customer cannot refuel the vehicle completely at certain hydrogen stations.
Fuel System, Diesel:storage:tank Assembly 2020-10-21 · A20-061 · Service Bulletin/Repair Instructions
service bulletin - the mil comes on with dtc p1fbf (air pump controller failure [internal failure warning]) during startup.
Fuel System, Other:storage:tank Assembly 2020-09-02 · A20-061 · Service Bulletin/Repair Instructions
service bulletin - the mil comes on with dtc p1fbf (air pump controller failure [internal failure warning]) during startup.
Fuel System, Diesel:storage:tank Assembly 2020-04-06 · A19-054_version3 · Service Bulletin/Repair Instructions
service bulletin - the fuel cell (fc) system uses an electric water pump to circulate insulating fluid and remove excess heat from the fuel cell stack. during manufacturing, the water pump's magnetic surface was not treated for corrosion resistance. over time, the corrosion may prevent the water pum
Showing the 6 most recent of 20 bulletins. Search all of them free at nhtsa.gov.
What owners report
2020-05-21 · Vehicle Speed Control“2018 honda clarity. consumer writes in regards to vehicle not accelerating over 30 mph. *ld *js the consumer stated the vehicle sat in park for 30 minutes, after which it would not accelerate past 30mph and the rpms escalated to rpms. the vehicle was taken to 3 different repair shops none were able to make the repairs. the consumer stated the mp…”
2020-04-30 · Fuel/Propulsion System · 16,193 mi“2018 honda clarity fuel cell experienced a sudden reduction in power due to a failure of the fuel cell power generation. the car displayed an error message "power system problem. stop driving when safe" while driving at freeway speeds on the freeway. the car then had low power and was running off the battery. after pulling over and turning off the …”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.