2017 Toyota Mirai 1HM (XW50)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Hydrogen refueling infrastructure limited
• Fuel cell stack sensitivity to impurities

First checks

• Check hydrogen fuel quality and pressure
• Inspect high-voltage components for insulation integrity

Antes de cambiar piezas

• Save fault codes and freeze-frame data before clearing anything.
• Check engine oil, coolant and transmission fluid using the correct temperature and service procedure.
• Verify power, ground, connectors, hoses, leaks and live data before replacing expensive parts.

Important notes

• The 2017 Toyota Mirai is a hydrogen fuel cell electric vehicle available initially in Japan, California (USA), and limited European markets.
• Engine code '1HM' denotes the fuel cell stack used in this model.