2018 Toyota Mirai
The 2018 Toyota Mirai is a hydrogen-powered sedan that offers an impressive driving range of up to 312 miles on a single fill-up. It’s powered by a 151-horsepower, 197 lb-ft of torque electric motor that draws power from a hydrogen fuel cell stack. The Mirai also comes standard with a continuously variable transmission (CVT).
While the Mirai has received praise for its innovative powertrain and impressive range, it has also faced some reported issues.
Engine
- No Issues Found
Transmission
- CVT
Transmission Shuddering Description/Symptoms: The transmission shudders or hesitates when shifting gears. Solution: Replace the transmission fluid and filter. Estimated Cost to Fix: $150 - $300+ Recalls: None Found
Suspension
- No Issues Found
Electrical
12V Battery Failure Description/Symptoms: The 12V battery fails prematurely, causing the vehicle to lose power. Solution: Replace the 12V battery. Estimated Cost to Fix: $100 - $200+ Recalls: None Found
Fuel Cell Stack Issues Description/Symptoms: The fuel cell stack experiences internal leaks or other malfunctions, reducing the vehicle’s range and performance. Solution: Replace the fuel cell stack. Estimated Cost to Fix: $10,000+ Recalls: NHTSA Campaign Number 19V745, 21V483
Exterior
- No Issues Found
Interior
Infotainment System Freezing Description/Symptoms: The infotainment system freezes or becomes unresponsive. Solution: Update the infotainment software or replace the head unit. Estimated Cost to Fix: $100 - $500+ Recalls: None Found
Climate Control Issues Description/Symptoms: The climate control system fails to regulate temperature or experiences other malfunctions. Solution: Replace the climate control module or repair electrical connections. Estimated Cost to Fix: $200 - $500+ Recalls: None Found
Summary
The 2018 Toyota Mirai has received mixed reviews regarding reliability. While it offers an impressive range and innovative powertrain, it has also experienced some common issues. The transmission shuddering and 12V battery failures are relatively minor and inexpensive to fix. However, the fuel cell stack issues are a major concern, as they can be costly to repair. Overall, the Mirai is a well-received vehicle that has some potential reliability issues to be aware of before making a purchase decision.