2021 Toyota Prius

The 2021 Toyota Prius is a popular hybrid vehicle known for its exceptional fuel efficiency and reliability. It comes standard with a 1.8-liter four-cylinder engine paired with an electric motor, producing a combined 121 horsepower and 120 lb-ft of torque. Some owners appreciate the Prius for its fuel economy and dependability, while others find its acceleration and driving dynamics to be uninspiring.

Engine

1.8L 2ZR-FXE I4 Hybrid

• Excessive Oil Consumption
  • Description/Symptoms: Some owners have reported higher-than-normal oil consumption, requiring them to add oil between scheduled oil changes. Symptoms include low oil level warnings, and potentially, blue exhaust smoke.
  • Solution: The issue may be related to piston ring design, PCV valve malfunction, or valve stem seals. Replacing the affected components (piston rings, PCV valve, or valve stem seals) is the common fix.
  • Estimated Cost to Fix: $2,000 - $4,000+ depending on extent of repairs.
  • Recalls: None Found

Transmission

ECVT (Electronically Controlled Continuously Variable Transmission)

• No Issues Found
  • Description/Symptoms: N/A
  • Solution: N/A
  • Estimated Cost to Fix: N/A
  • Recalls: None Found

Suspension

• Rear Suspension Noises
  • Description/Symptoms: Some owners have reported clunking or squeaking noises coming from the rear suspension, especially when going over bumps or uneven road surfaces.
  • Solution: Inspect and potentially replace the rear shock absorbers, sway bar links, and bushings.
  • Estimated Cost to Fix: $200 - $800, depending on the parts needing replacement.
  • Recalls: None Found

Electrical

• 12V Battery Drain
  • Description/Symptoms: The 12V auxiliary battery can drain prematurely, especially if the car is not driven frequently or if aftermarket accessories are installed. This can lead to difficulty starting the car or a completely dead battery.
  • Solution: Ensure all aftermarket accessories are properly installed and not drawing excessive power when the vehicle is off. Replace the 12V battery with a high-quality AGM battery if the original is failing.
  • Estimated Cost to Fix: $150 - $300+ for battery replacement.
  • Recalls: None Found
• Infotainment System Freezing/Rebooting
  • Description/Symptoms: The infotainment system (touchscreen display) may occasionally freeze, lag, or spontaneously reboot.
  • Solution: Check for available software updates for the infotainment system and install them. If the problem persists, the head unit may need replacement.
  • Estimated Cost to Fix: $0 for software update (if available); $500 - $1500+ for head unit replacement.
  • Recalls: None Found

Exterior

• Water Leaks through Taillights
  • Description/Symptoms: Water can leak through the taillight assemblies, potentially causing damage to the electrical components or the interior of the trunk.
  • Solution: Replace the taillight gaskets or the entire taillight assembly.
  • Estimated Cost to Fix: $100 - $400+ depending on the extent of the repair.
  • Recalls: None Found

Interior

• HVAC Blower Motor Noise
  • Description/Symptoms: The HVAC blower motor may develop a whining or squealing noise, especially at lower speeds. This is often caused by a failing blower motor bearing.
  • Solution: Replace the HVAC blower motor.
  • Estimated Cost to Fix: $200 - $500
  • Recalls: None Found

Summary

The 2021 Toyota Prius generally enjoys a reputation for reliability, but some owners have reported issues such as excessive oil consumption, rear suspension noises, 12V battery drain, infotainment system glitches, water leaks, and HVAC blower motor noise. The severity and cost of these issues vary, with engine-related repairs being the most expensive. While most of the issues are not widespread, potential buyers should be aware of them and consider a pre-purchase inspection.