2024 Lexus GX550

Here’s a comprehensive breakdown of common issues and complaints reported for the 2024 Lexus GX 550, categorized by major components. This is based on currently available information from owner forums, NHTSA complaints, and early reviews. The 2024 Lexus GX 550 represents a significant redesign for the model, moving to a new platform and powertrain. It features a 3.4-liter twin-turbo V6 engine producing 349 horsepower and 479 lb-ft of torque, paired with a 10-speed automatic transmission. People generally appreciate the GX 550’s improved off-road capability, modern interior, and updated technology. Common dislikes include the sometimes-clunky infotainment system, and concerns regarding the fuel economy. No other engine or transmission options are available for the 2024 model year.

Engine

3.4L Twin-Turbo V6

• Turbo Lag
  • Description/Symptoms: Some owners report noticeable turbo lag at lower RPMs, leading to a delay in acceleration. This is most noticeable when pulling away from a stop or during low-speed maneuvers.
  • Solution: Currently, there’s no official fix. Some owners are hoping for ECU tuning updates from Lexus.
  • Estimated Cost to Fix: N/A
  • Recalls: None Found
• High Pressure Fuel Pump (HPFP) Noisy
  • Description/Symptoms: Some owners have reported a loud clicking sound coming from the HPFP, located under the hood. This is most noticeable at idle or low speeds. Some suspect it could be caused by the location of the pump next to the firewall.
  • Solution: Repair or replacement of the HPFP.
  • Estimated Cost to Fix: Unknown at this time.
  • Recalls: None Found

Transmission

10-Speed Automatic

• Harsh Shifting
  • Description/Symptoms: Some owners experience harsh or jerky shifting, particularly at lower speeds or during downshifts. This can manifest as a noticeable clunk or hesitation.
  • Solution: The most common fix is to have the ECU or Transmission Control Module (TCM) software updated/reflashed. It is also possible the transmission may need to be replaced.
  • Estimated Cost to Fix: $100-$300+ for software updates, significantly more for transmission replacement (>$5000).
  • Recalls: None Found

Suspension

• Adaptive Variable Suspension (AVS) Malfunction
  • Description/Symptoms: Some GX 550s equipped with AVS report warning lights and error messages indicating a problem with the system. This can result in a loss of variable damping, leading to a harsher ride.
  • Solution: Diagnosis to isolate faulty sensor or actuator. Replacement of affected components.
  • Estimated Cost to Fix: $500 - $1500+ depending on the failed part.
  • Recalls: None Found

Electrical

• Infotainment System Freezing/Lag
  • Description/Symptoms: The infotainment system can freeze, lag, or become unresponsive. This can affect navigation, audio, and climate controls.
  • Solution: Software update. In some cases, a full system reset or replacement of the head unit may be necessary.
  • Estimated Cost to Fix: $0 for software updates; potentially thousands for head unit replacement if not covered by warranty.
  • Recalls: None Found
• Wireless Phone Charger Issues
  • Description/Symptoms: Some owners have reported that the wireless phone charger either doesn’t work consistently or overheats their phone.
  • Solution: Inspection and potential replacement of the wireless charging pad.
  • Estimated Cost to Fix: Unknown at this time.
  • Recalls: None Found

Exterior

• Sunroof/Moonroof Rattling
  • Description/Symptoms: Reports of rattling noises coming from the sunroof or moonroof area, especially when driving on rough roads.
  • Solution: Adjustment and lubrication of the sunroof/moonroof mechanism. In some cases, replacement of worn components.
  • Estimated Cost to Fix: $100 - $500+ depending on the severity and required parts.
  • Recalls: None Found

Interior

• Dashboard Reflections
  • Description/Symptoms: The dashboard material causes distracting reflections on the windshield, particularly in bright sunlight.
  • Solution: Applying a matte finish dashboard cover or using polarized sunglasses.
  • Estimated Cost to Fix: $20 - $100+ depending on solution chosen.
  • Recalls: None Found

Summary

The 2024 Lexus GX 550 is a newly redesigned model, and as such, some early adopters are experiencing a range of issues. Some of the most concerning issues are turbo lag, a loud ticking sound from the HPFP, and harsh shifting, which could be considered moderate in severity and could be costly to repair if it requires engine or transmission replacement. Minor issues such as infotainment glitches and sunroof rattles are more common, less severe, and cheaper to fix. As the model year progresses and Lexus gathers more data, it’s expected that many of these issues will be addressed through software updates and revised parts.