2021 Lexus RX450h

Introduction

The 2021 Lexus RX450h is a luxury midsize SUV that has been loved for its potent V6 engine and fuel efficiency from its hybrid powertrain. It features a 3.5-liter V6 engine paired with two electric motors, producing 308 horsepower. The RX450h also offers impressive safety features, a spacious and comfortable interior, and a smooth ride. However, it has faced some issues that owners should be aware of.

Engine

• 3.5-liter V6
  • Cracked Exhaust Manifolds:
    • Description/Symptoms: Leaks in the exhaust system; reduced engine performance; exhaust noise
    • Solution: Replace exhaust manifolds
    • Estimated Cost to Fix: $1,000 - $1,500
  • Oil Burning:
    • Description/Symptoms: Excessive engine oil consumption; blue smoke from exhaust
    • Solution: Replace piston rings or engine overhaul
    • Estimated Cost to Fix: $3,000 - $5,000
• Electric Motor:
  • No Issues Found

Transmission

• Continuously Variable Transmission (CVT)
  • Slipping Gears:
    • Description/Symptoms: Difficulty shifting; lack of power; transmission noises
    • Solution: Replace or rebuild transmission
    • Estimated Cost to Fix: $2,000 - $3,500
  • Premature Wear:
    • Description/Symptoms: Rough shifting; transmission hesitation; loss of gears
    • Solution: Replace or rebuild transmission
    • Estimated Cost to Fix: $4,000 - $6,000

Suspension

• Front Control Arms:
  • Premature Wear:
    • Description/Symptoms: Clunking noises over bumps; reduced steering control
    • Solution: Replace control arms
    • Estimated Cost to Fix: $500 - $1,000

Electrical

• Electrical Harness:
  • Short Circuits:
    • Description/Symptoms: Electrical system malfunctions; intermittent power loss
    • Solution: Repair or replace electrical harness
    • Estimated Cost to Fix: $600 - $1,200

Exterior

• Headlights:
  • Premature Fogging:
    • Description/Symptoms: Moisture buildup in headlights; reduced visibility
    • Solution: Replace headlights
    • Estimated Cost to Fix: $800 - $1,200

Interior

• Infotainment System:
  • Software Glitches:
    • Description/Symptoms: Freezing; slow response; navigation errors
    • Solution: Software updates
    • Estimated Cost to Fix: $0 - $200

Summary

The 2021 Lexus RX450h presents some concerns, primarily centered around the engine, transmission, and suspension components. These issues range from minor annoyances like software glitches to more severe and expensive problems like cracked exhaust manifolds and premature transmission wear. While the RX450h remains a popular choice, potential buyers should be aware of these issues and factor in the potential costs of repairs.