2021 Toyota Prius Prime

The 2021 Toyota Prius Prime is a plug-in hybrid vehicle known for its excellent fuel efficiency and electric-only driving range. It comes with a 1.8L 4-cylinder engine paired with an electric motor, producing a combined 121 horsepower. The Prius Prime is only available with an Electronically controlled Continuously Variable Transmission (ECVT). Owners generally appreciate its fuel economy, comfortable ride, and advanced safety features. However, some common complaints revolve around the infotainment system’s complexity and the limited cargo space due to the larger battery pack.

Electric Motor

Electric Motor

• Reduced EV Range
  • Description/Symptoms: Some owners report a noticeable reduction in the electric-only range over time, particularly in colder weather conditions. The range may drop below the advertised 25 miles.
  • Solution: A software update or battery replacement might be necessary to restore the original range. In some cases, it may also be due to driving habits and climate conditions.
  • Estimated Cost to Fix: For software updates, usually Free. For battery replacements, it can range from $3,000 - $8,000+ depending on the extent of the damage.
  • Recalls: None Found

Battery

• Battery Degradation
  • Description/Symptoms: Premature battery degradation. Some owners have reported diminished battery capacity and reduced driving range sooner than expected, possibly due to hot weather or improper charging habits.
  • Solution: Replacing faulty battery.
  • Estimated Cost to Fix: $3,000-$8,000
  • Recalls: None Found

Transmission

Electronically controlled Continuously Variable Transmission (ECVT)

No Issues Found

Suspension

No Issues Found

Electrical

• Infotainment System Freezing/Lagging
  • Description/Symptoms: The infotainment system can occasionally freeze, lag, or become unresponsive. This can affect navigation, audio, and climate control functions.
  • Solution: Performing a system reset, updating the software, or replacing the unit may be necessary.
  • Estimated Cost to Fix: $0 (reset) - $150 (software update) - $500 - $1500+ (replacement)
  • Recalls: None Found
• Connectivity Issues (Apple CarPlay/Android Auto)
  • Description/Symptoms: Intermittent connection problems with Apple CarPlay or Android Auto, including dropped connections or failure to connect at all.
  • Solution: Trying a different USB cable, updating the phone’s software, or updating the infotainment system software.
  • Estimated Cost to Fix: $0 (cable/software update) - $150+ (diagnostic and repair)
  • Recalls: None Found

Exterior

• Windshield Cracking
  • Description/Symptoms: Some owners reported a high incidence of the windshield cracking with only minor impacts.
  • Solution: Windshield replacement
  • Estimated Cost to Fix: $300-$500+
  • Recalls: None Found

Interior

• Seat Comfort Issues
  • Description/Symptoms: Some drivers find the seats uncomfortable on longer trips, lacking sufficient lumbar support or adjustability.
  • Solution: Using aftermarket seat cushions or lumbar supports can improve comfort. In some cases, replacing the seats might be considered.
  • Estimated Cost to Fix: $20 (cushions) - $200+ (seat replacement)
  • Recalls: None Found

Summary

The 2021 Toyota Prius Prime generally exhibits few major mechanical issues. The most common complaints revolve around electrical issues, specifically with the infotainment system, and interior comfort. Battery degradation is also a concern for some owners. The costs associated with these issues can range from minimal (software updates, resets) to significant (battery or infotainment system replacement), but are typically less severe than some other vehicles in its class.