2011 Lexus GS450h

Here is a breakdown of common issues and complaints reported by owners of the 2011 Lexus GS450h. This luxury hybrid sedan combines performance with fuel efficiency. The 2011 GS450h is only available as a hybrid model. The hybrid system combines a 3.5L V6 engine with an electric motor and a continuously variable transmission (CVT). The hybrid system produces a combined 335 horsepower. Many owners appreciate the vehicle’s smooth ride, luxurious interior, and relatively good fuel economy for its class. Common complaints often revolve around the hybrid system’s complexity, the infotainment system’s dated interface, and the relatively small trunk space due to the hybrid battery pack.

Electric Motor

No Issues Found

Transmission

CVT Transmission

• Transmission Slipping/Hesitation
  • Description/Symptoms: Owners report experiencing hesitation or slipping during acceleration, particularly at higher mileage. This can manifest as a delay in response when pressing the accelerator or a feeling that the engine is revving without a corresponding increase in speed.
  • Solution: Diagnosis by a qualified technician is necessary. This may involve a transmission fluid flush/replacement, or in more severe cases, CVT rebuild or replacement.
  • Estimated Cost to Fix: $200 (fluid flush) to $4,000+ (rebuild/replacement)
  • Recalls: None Found

Battery

• Hybrid Battery Failure
  • Description/Symptoms: Gradual decrease in fuel economy, warning lights on the dashboard (e.g., “Check Hybrid System”), reduced power, or complete failure of the hybrid system. This is a common issue as the battery ages.
  • Solution: Replacement of the hybrid battery pack. Some owners opt for refurbished batteries as a more cost-effective alternative, but this may come with a shorter lifespan.
  • Estimated Cost to Fix: $2,500 - $8,000
  • Recalls: None Found

Suspension

• Air Suspension Failure (If Equipped)
  • Description/Symptoms: The Lexus GS450h is sometimes equipped with air suspension in the rear. Air suspension failure can lead to vehicle sagging, uneven ride height, a bumpy ride, and error messages on the dashboard. This can be caused by leaks in the air springs or a failing air compressor.
  • Solution: Replacement of the failed air spring(s) or air compressor.
  • Estimated Cost to Fix: $800 - $2,000+
  • Recalls: None Found

Electrical

• Navigation System/Infotainment Issues
  • Description/Symptoms: The navigation system can become outdated, slow, or experience glitches. Bluetooth connectivity issues and general infotainment malfunctions are also reported.
  • Solution: Software updates, replacement of the head unit (if available), or aftermarket infotainment upgrades.
  • Estimated Cost to Fix: $100 (software update) to $1,000+ (replacement/upgrade)
  • Recalls: None Found
• Power Window/Door Lock Malfunctions
  • Description/Symptoms: Intermittent or complete failure of power windows or door locks.
  • Solution: Replacement of the affected window motor, door lock actuator, or wiring repair.
  • Estimated Cost to Fix: $200 - $500 per window/door.
  • Recalls: None Found

Exterior

• Headlight Condensation
  • Description/Symptoms: Moisture buildup inside the headlight housing, leading to reduced visibility and potential damage to the headlight assembly.
  • Solution: Replacing the headlight assembly. Sealing the headlight may be a temporary solution.
  • Estimated Cost to Fix: $300 - $800 per headlight.
  • Recalls: None Found

Interior

• Dashboard Cracking
  • Description/Symptoms: Some owners report cracking of the dashboard, especially in warmer climates.
  • Solution: Replacement of the dashboard (very expensive) or installation of a dashboard cover.
  • Estimated Cost to Fix: $1,500 - $3,000+ (dashboard replacement), $50 - $200 (dashboard cover).
  • Recalls: None Found

Summary

The 2011 Lexus GS450h, while generally reliable, does have some common issues. The most concerning and potentially costly issue is hybrid battery failure and CVT transmission issues. Air suspension failures can also be costly. Electrical problems with the infotainment system can be frustrating, but are typically less expensive to address. Overall, potential buyers should be aware of these potential issues and factor in the cost of maintenance and potential repairs when considering this vehicle. Regular maintenance, especially of the hybrid system and cooling system, is crucial to extending the lifespan of the vehicle and minimizing potential problems.