What the source says
The documented condition
NHTSA campaign 18V921000 includes certain 2017 to 2018 Honda Clarity vehicles. Honda (American Honda Motor Co). is recalling certain 2017-2018 Clarity Fuel Cell vehicles previously repaired under recall 18V-068. A loss of power can increase the risk of a crash.
Source component: HYBRID PROPULSION SYSTEM
Compare the pattern
Symptoms and vehicle scope
Words owners may use
- hybrid system warning
- hybrid car suddenly loses power
- EV mode stopped working
- car will not go ready
- hybrid battery warning
- propulsion system fault
Symptoms in the record
- A hybrid-system warning, reduced propulsion or a no-start condition may occur
- An open campaign appears when the complete VIN is checked
- Some recalled vehicles may show no advance warning before the component fails
Vehicles and limits
- 2017 to 2018 Honda Clarity
- NHTSA campaign 18V921000
- The manufacturer filing lists 1,082 potentially affected units across the complete campaign.
- VIN eligibility determines whether this recall applies to an individual vehicle
Manufacturer position
What the official procedure directs
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.
Mileage context
Safety recall eligibility is based on the VIN and campaign scope, not ordinary warranty mileage. Check the complete VIN even when the vehicle is outside its original warranty.
Original evidence
Open the documents behind this record.
NHTSA safety recall · 18V921000 · Dec 20, 2018
Official campaign record for Honda Clarity
NHTSA campaign data lists the defect, safety consequence and manufacturer remedy. The manufacturer filing lists 1,082 potentially affected units across the complete campaign.
Repair paths and safe checks
Match the action to the evidence.
Use the official recall 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.
Do not buy parts from the campaign description alone. VIN scope, superseded remedies and parts availability can change.
Check the complete VIN before arranging work
Enter the 17-character VIN in NHTSA's recall lookup and ask the manufacturer or an authorised dealer to confirm whether the campaign is open for this vehicle.
A year, make and model match does not prove that every vehicle is included. The VIN result controls eligibility.
Record reviewed in the source on August 3, 2026. Confirm the current document and VIN instructions before arranging work.
How we check a problem · All records for the 2017 Honda Clarity