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2017 Toyota Mirai Maintenance guide

2017 Toyota Mirai Maintenance guide
v1.0Updated May 30, 2026·Ryan Davis4 Sources Analyzed
MAINTENANCE SUMMARY

The 2017 Toyota Mirai requires diligent attention to its unique hydrogen fuel cell system, particularly the fuel cell radiator's vulnerability to road debris. Regular inspections are paramount to prevent power loss.

View Critical Issue: Fuel Cell Radiator Damage
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Reliability Score

9.1/ 10

Est. Annual Maintenance Cost

Not available

TSBs & Recalls

85 TSBs | 0 Recalls

SummaryMaintenance & CostsCommon FailuresSymptoms & PreventionKeep ReadingFAQSources

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Key Takeaways

  • The fuel cell radiator is a critical component requiring regular inspection for damage from road debris due to its exposed location. Failure can result in vehicle power loss.
  • The automatic emergency braking (AEB) system has shown erratic behavior, including unintended activations. Verification of its proper function and warnings is essential.

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Critical service intervals
Common failure analysis
Symptoms and prevention guidance
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MethodologyHow we score →

Scores are derived from NHTSA recalls and owner complaints, normalized by vehicle segment averages.

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Full ownership breakdown for the 2017 Toyota Mirai.

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Shop Parts

Quick links for routine service and common repair parts.

  • Cabin Air Filter
  • DOT 3 Brake Fluid
  • DOT 3 Brake Fluid
  • Fuel Cell Radiator
  • AEB Sensor

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