The 2018 Honda Clarity Fuel Cell has 2 NHTSA recall campaigns affecting an estimated 2,164 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 2 complaints with NHTSA, most often about the fuel/propulsion system. Last updated July 5, 2026.
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.
A failure of the water pump can cause the vehicle to stall, increasing the risk of crash.
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.
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…
A loss of power can increase the risk of a crash.
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.
Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.
“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…”
“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…”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2018 Honda Clarity Fuel Cell as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.