2021 Lexus LS500h

The 2021 Lexus LS 500h is a luxury hybrid sedan known for its smooth ride, quiet cabin, and advanced technology. The hybrid powertrain consists of a 3.5-liter V6 engine paired with two electric motors, producing a combined 354 horsepower. While the LS 500h is praised for its fuel efficiency and luxurious features, some owners have reported specific issues. Some drivers love the quietness and smooth ride quality, while others find the infotainment system clunky and the styling somewhat bland. This response will outline common issues reported by owners, separated by vehicle components.

Electrical

• Infotainment System Freezing/Crashing
  • Description/Symptoms: The infotainment system, including the navigation, audio, and climate controls, may freeze or crash unexpectedly, requiring a restart of the vehicle or system reset.
  • Solution: Software updates from Lexus can often resolve these issues. If the problem persists, the infotainment unit may need to be replaced.
  • Estimated Cost to Fix: $0 (software update) - $1,000+ (unit replacement)
  • Recalls: None Found
• Adaptive Cruise Control Malfunctions
  • Description/Symptoms: The adaptive cruise control system may disengage unexpectedly or provide inaccurate distance readings, leading to potentially unsafe driving conditions.
  • Solution: A recalibration of the radar sensors or replacement of faulty sensors.
  • Estimated Cost to Fix: $300 - $800+
  • Recalls: None Found

Interior

• Sunroof Rattling/Creaking
  • Description/Symptoms: A rattling or creaking noise emanating from the sunroof area, particularly when driving over uneven surfaces.
  • Solution: Tightening or lubricating the sunroof mechanism components. In some cases, replacement of the sunroof seals or entire sunroof assembly may be necessary.
  • Estimated Cost to Fix: $100 - $1,500+
  • Recalls: None Found

Exterior

• Automatic Trunk Malfunction
  • Description/Symptoms: The automatic trunk may fail to open or close properly, or the trunk may open and close without being prompted.
  • Solution: A recalibration of the trunk sensors, inspection of the hydraulic or electric struts, or replacement of the trunk motor.
  • Estimated Cost to Fix: $200 - $1,000+
  • Recalls: None Found

Engine

3.5L V6 Hybrid

• Hybrid Battery Degradation
  • Description/Symptoms: Reduced fuel economy, decreased electric motor assistance, and a warning light indicating a problem with the hybrid battery.
  • Solution: Replacement of the hybrid battery pack.
  • Estimated Cost to Fix: $4,000 - $8,000+
  • Recalls: None Found
• Fuel Injector Leaks
  • Description/Symptoms: Rough idling, reduced fuel economy, and the smell of fuel coming from the engine bay.
  • Solution: Replace faulty fuel injectors.
  • Estimated Cost to Fix: $800 - $1,500+
  • Recalls: None Found

Transmission

3.5L V6 Hybrid

• No Issues Found

Suspension

• Air Suspension Problems (If Equipped)
  • Description/Symptoms: The air suspension system may fail to maintain the proper ride height, resulting in a bumpy ride or uneven vehicle stance.
  • Solution: Replacement of the air struts, compressor, or ride height sensors.
  • Estimated Cost to Fix: $800 - $2,000+ per strut
  • Recalls: None Found

Summary

The 2021 Lexus LS 500h generally enjoys a reputation for reliability, though some owners have reported issues with the infotainment system, sunroof, air suspension (if equipped), and hybrid battery. The severity and cost of these issues can vary, with hybrid battery replacement being the most expensive potential repair. Addressing these potential issues early can help to minimize repair costs and ensure a smooth and enjoyable ownership experience.