Vehicle problem research

2018 Honda Clarity problems and repair guidance

Read 3 documented issue files for the 2018 Honda Clarity, including symptoms, source-defined vehicle scope and the published repair or diagnostic steps. A matching model name does not diagnose your car or confirm VIN eligibility.

This profile contains problem research. Model-specific warranty cost estimates and aggregate NHTSA complaint counts are not included for this model year.

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Honda Clarity model-year research

Model-year coverage varies. Each page shows the available problem files and identifies whether warranty estimates and federal report counts are included.

Problem research and repair guidance

2018 Honda Clarity: symptoms, affected vehicles and documented fixes

Match the symptom and the exact vehicle scope before arranging work. These files preserve the FixCatalogue research, with the manufacturer position, safe checks and original evidence available here.

3documented issue files
3vehicle systems

3 recall files · 0 other manufacturer files. These are editorial file counts, not distinct campaign totals, failure rates or a complete recall history.

Electrical & software

Official safety recall2017, 2018Campaign 19V315000

Electrical or software fault may disable vehicle functions

Internal components may corrode and cause the water pump to fail.

NHTSA campaign 19V315000 includes certain 2017 to 2018 Honda Clarity vehicles. Honda (American Honda Motor Co). is recalling certain 2017-2018 Clarity Fuel Cell vehicles. A failure of the water pump can cause the vehicle to stall, increasing the risk of crash.

Symptoms to compare
  • Warning messages, a blank display, a no-start condition or loss of a vehicle function may occur
  • An open campaign appears when the complete VIN is checked
  • Some recalled vehicles may show no advance warning before the component fails

Other ways owners describe it: dashboard lit up with warnings; car electronics stopped working; screen keeps rebooting; car will not start after update; electrical problem with no warning; software recall.

Which vehicles the source covers
  • 2017 to 2018 Honda Clarity
  • NHTSA campaign 19V315000
  • The manufacturer filing lists 1,082 potentially affected units across the complete campaign.
  • VIN eligibility determines whether this recall applies to an individual vehicle

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.

Component in the source: EQUIPMENT:ELECTRICAL

Published recall 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.

Use the official recall remedyAuthorised dealer · Confirm with VIN

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.

Limit: Do not buy parts from the campaign description alone. VIN scope, superseded remedies and parts availability can change.

Check the complete VIN before arranging workBasic check · 5 minutes

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.

Limit: A year, make and model match does not prove that every vehicle is included. The VIN result controls eligibility.

Evidence for this issue

Fuel system

Official safety recall2018, 2019Campaign 23V858000

Fuel pump or delivery fault may cause a stall

The fuel pump inside the fuel tank may fail.

NHTSA campaign 23V858000 includes certain 2018 to 2019 Honda Clarity vehicles. Honda (American Honda Motor Co). is recalling certain 2013-2023 Honda Accord, Civic Coupe, Civic Sedan, Civic Hatchback, Civic Type R, CR-V, HR-V, Ridgeline, Odyssey, Acura ILX, MDX, MDX Hybrid, RDX, RLX, TLX, 2019-2022 Honda Insight, Passport, 2020 Honda CR-V Hybrid, 2018-2019 Honda Clarity PHEV, Fit, and 2015-2020 Honda Accord Hybrid, Pilot, Acura NSX vehicles. Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.

Symptoms to compare
  • The engine may hesitate, fail to start, stall or lose power if fuel delivery is interrupted
  • An open campaign appears when the complete VIN is checked
  • Some recalled vehicles may show no advance warning before the component fails

Other ways owners describe it: fuel pump stopped working; car stalls without warning; engine cranks but will not start; car loses power while driving; fuel system warning; engine dies at speed.

Which vehicles the source covers
  • 2018 to 2019 Honda Clarity
  • NHTSA campaign 23V858000
  • The manufacturer filing lists 2,490,460 potentially affected units across the complete campaign.
  • VIN eligibility determines whether this recall applies to an individual vehicle

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.

Component in the source: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

Published recall remedy

Dealers will replace the fuel pump module, free of charge. Owner letters were mailed September 6, 2024. Owners may contact Honda customer service at 1-888-234-2138.

Use the official recall remedyAuthorised dealer · Confirm with VIN

Dealers will replace the fuel pump module, free of charge. Owner letters were mailed September 6, 2024. Owners may contact Honda customer service at 1-888-234-2138.

Limit: Do not buy parts from the campaign description alone. VIN scope, superseded remedies and parts availability can change.

Check the complete VIN before arranging workBasic check · 5 minutes

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.

Limit: A year, make and model match does not prove that every vehicle is included. The VIN result controls eligibility.

Evidence for this issue
  • 23V858000: Official campaign record for Honda Clarity

    NHTSA safety recall · Dec 18, 2023

    NHTSA campaign data lists the defect, safety consequence and manufacturer remedy. The manufacturer filing lists 2,490,460 potentially affected units across the complete campaign.

Transmission & drivetrain

Official safety recall2017, 2018Campaign 18V921000

Hybrid propulsion system may lose power

The previous software remedy may have been incomplete.

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.

Symptoms to compare
  • 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

Other ways owners describe it: hybrid system warning; hybrid car suddenly loses power; EV mode stopped working; car will not go ready; hybrid battery warning; propulsion system fault.

Which vehicles the source covers
  • 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

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.

Component in the source: HYBRID PROPULSION SYSTEM

Published 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.

Use the official recall remedyAuthorised dealer · Confirm with VIN

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.

Limit: Do not buy parts from the campaign description alone. VIN scope, superseded remedies and parts availability can change.

Check the complete VIN before arranging workBasic check · 5 minutes

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.

Limit: A year, make and model match does not prove that every vehicle is included. The VIN result controls eligibility.

Evidence for this issue

Confirm who pays before authorizing work

A recall remedy follows the campaign and VIN eligibility. A service bulletin provides diagnosis or repair instructions; it does not by itself promise payment. Manufacturer warranty extensions and support programs have their own conditions.

Compare recalls, bulletins and warranty extensions →

Keep a current problem separate from future coverage

These files do not supply a shop quote. Ask for a diagnosis and written estimate, then check recall remedies or existing coverage. A new vehicle service contract generally excludes pre-existing conditions.

Prepare a useful description for the mechanic →

Each file retains its original source review date. Historical remedy wording can change; check the current manufacturer notice and NHTSA VIN lookup for your vehicle. The separately dated NHTSA counts elsewhere on this page use a different dataset and scope.

Read the evidence for this vehicle

What can the data tell you about 2018 Honda Clarity?

No model-specific individual-repair price keys are retained for Honda Clarity in this library. Generic parts and labor estimates, public records and separate annual cost references may still be available.

Individual-repair price scopeGeneric inputs

Model-level range presence is a source-coverage check. It does not confirm that a repair fits every engine or model year.

EPA configuration matchNo confirmed match

An unmatched specification is an information gap. Do not borrow an engine or drivetrain from another year.

Documented repair pathsCheck the source

Recall and communication counts describe records. They cannot establish a breakdown probability or current VIN status.

Price-key audit reviewed October 12, 2026; EPA source snapshot 2026-08-07. Individual-repair ranges and annual repair-budget references are different datasets.