2016 Toyota Mirai

The 2016 Toyota Mirai is a hydrogen fuel cell electric vehicle (FCEV) that produces electricity from hydrogen and emits only water. It was offered with a single powertrain option: a 113 kW (151 hp) electric motor and a 114 kW (153 hp) fuel cell stack, providing 247 lb-ft of torque. Owners generally appreciate the Mirai’s zero-emission driving and unique styling. Common dislikes include limited range (compared to gasoline vehicles), the scarcity of hydrogen fueling stations, and the high cost of hydrogen fuel.

Electric Motor

113 kW Electric Motor

• Fuel Cell Stack Degradation
  • Description/Symptoms: Gradual decline in fuel cell performance, resulting in reduced range and power output. This may be indicated by error messages on the dashboard or a noticeable decrease in the vehicle’s acceleration.
  • Solution: Replacement of the fuel cell stack.
  • Estimated Cost to Fix: $55,000+
  • Recalls: None Found
• High Voltage Converter Failure
  • Description/Symptoms: The vehicle might display a “Check Hybrid System” or similar warning. Symptoms include a loss of power or inability to start.
  • Solution: Replacement of the high-voltage converter.
  • Estimated Cost to Fix: $3,000 - $5,000
  • Recalls: None Found

Electrical

• Hydrogen Leakage
  • Description/Symptoms: The hydrogen fuel system can develop leaks over time due to degradation of seals and connections. This can be detected by a sulfur or rotten egg smell near the fuel tank.
  • Solution: Replacement of fuel lines and connectors and inspection of the fuel tank.
  • Estimated Cost to Fix: $200 - $1,000+
  • Recalls: 17V-093 - Hydrogen Gas Leak
• Fuel Cell Cooling System Leak
  • Description/Symptoms: Coolant leaks in the fuel cell system can cause overheating or damage to the system. This may be indicated by a low coolant level and a warning light.
  • Solution: Replacement of the fuel cell cooling system components and coolant flush.
  • Estimated Cost to Fix: $1,000 - $4,000
  • Recalls: None Found

Exterior

No Issues Found

Interior

• Infotainment System Freezing/Lagging
  • Description/Symptoms: The infotainment system can become unresponsive or slow to react, leading to frustration while trying to use navigation, audio, or other features.
  • Solution: Software update or replacement of the infotainment system.
  • Estimated Cost to Fix: $500 - $2,000
  • Recalls: None Found

Suspension

No Issues Found

Summary The 2016 Toyota Mirai, while innovative, has a few notable issues. The primary concern revolves around the hydrogen fuel cell stack, which can degrade over time. Addressing these issues can be costly, particularly the fuel cell stack replacement. Other issues include fuel cell cooling system leaks and infotainment system problems. Addressing these issues can range from moderate to very expensive, potentially impacting the overall cost of ownership. While hydrogen leakage is a concern, it can be mitigated by addressing the safety recall.