Safety Recall NHTSA · 18V921000 Reported December 20, 2018

Vehicle may lose power

Honda (american Honda Motor Co.) · Electrical System · 1,082 vehicles potentially affected

NHTSA ID
18V921000
Manufacturer Campaign
A3O
Component
Electrical System
Vehicles Affected
1,082
Recall Type
Vehicle
Report Received
December 20, 2018
Completion Rate
98.33

Defect Summary

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.

Safety Consequence

A loss of power can increase the risk of a crash.

Corrective Action

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.

What you should do

  1. Look up your VIN at nhtsa.gov/recalls to confirm this recall applies to your vehicle.
  2. Contact an authorized Honda (american Honda Motor Co.) dealer and reference recall ID 18V921000 or campaign A3O.
  3. Schedule the free repair. By federal law, the manufacturer must remedy the defect at no cost.
View Official NHTSA Notice →
Related

Similar Recalls

Other recalls from Honda (american Honda Motor Co.) or involving Electrical System.

FAQ: Recall 18V921000

Your rights, the repair process, and what each field on this page means.

What is recall 18V921000?

NHTSA recall 18V921000 was issued by Honda (american Honda Motor Co.) on December 20, 2018. It addresses: Vehicle may lose power. The recall affects approximately 1,082 vehicles, with the defect involving the Electrical System component.

How do I get this recall repaired?

Contact any authorized Honda (american Honda Motor Co.) dealer and reference NHTSA recall ID 18V921000 or the manufacturer campaign number A3O. Under federal law, the repair is completely free regardless of vehicle age or owner history.

Is my vehicle included in this recall?

The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.

How long do I have to get a recall repair done?

There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.

Where does the data on this page come from?

All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.