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 mpg dropped from 44 to 24.7.
The worst 2018 Honda Clarity Fuel Cell problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Acceleration1
- Fuel system1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Acceleration1
- Fuel system1
Recalls 2
Equipment: electrical
- What is wrong
- 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.
- Remedy
- 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.
Recall number 19V315000 · Recall details
Electrical system: software
- What is wrong
- 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.
- Remedy
- 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.
Recall number 18V921000 · Recall details
Technical service bulletins for the 2018 Honda Clarity Fuel Cell 20
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Owner's Notification Letter
- Dealer Message
- The customer cannot refuel the vehicle completely at certain hydrogen stations.
- The MIL comes on with DTC P1FBF (air pump controller failure [internal failure warning]) during startup.
- Water improperly discharged inside the fuel cell (FC) stack mixes with hydrogen and oxygen, generating...
- The fuel cell (FC) system uses an electric water pump to circulate insulating fluid and remove excess heat...
- Water improperly discharged inside the fuel cell stack mixes with hydrogen and oxygen, generating hydrogen...
- ServiceNews Article
- Owner Notification Letter
- The telematics system is reporting deterioration of the fuel cell stack
What 2018 Honda Clarity Fuel Cell owners say
Most recent owner complaints, unedited.
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 car and restarting, it had the same error with low battery only. Then we turned off, waited about ten minutes, restarted the car, and the fuel cell system seemed fine. The battery began to charge. We have not been able to reproduce the problem since then. This car has previously already had all recalls completed, including the software update to address power system failures last year.
Compare the 2018 Honda Clarity Fuel Cell
Other model years
20172018
Questions about the 2018 Honda Clarity Fuel Cell
Is the 2018 Honda Clarity Fuel Cell reliable?
Owners have filed 2 complaints about the 2018 Honda Clarity Fuel Cell, fewer than a typical Clarity Fuel Cell model year.
What is the most common problem with the 2018 Honda Clarity Fuel Cell?
Acceleration and speed control, with 1 complaint. Next is fuel system (1).
How many recalls does the 2018 Honda Clarity Fuel Cell have?
2 recalls, covering equipment and electrical system.
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