2018 Lexus GS300

2018 Lexus GS300

The 2018 Lexus GS300 is a midsize luxury sedan renowned for its refined design, comfortable interior, and advanced technology. It is offered with a single engine and transmission option: a 3.5-liter V6 engine paired with an 8-speed automatic transmission. The V6 engine produces 241 horsepower and 233 lb-ft of torque.

While the 2018 Lexus GS300 is generally praised for its performance and reliability, it is not without its fair share of issues. Here’s a comprehensive list of the specific problems reported by owners:

Engine

• 3.5-liter V6 Engine
  • Oil Leaks from Valve Covers:
    • Description/Symptoms: Oil leaks from around the valve covers, leading to a decrease in oil levels and potential engine damage.
    • Solution: Replacement of valve cover gaskets.
    • Estimated Cost to Fix: $500 - $1,000+
    • Recalls: None Found
  • Timing Chain Noise:
    • Description/Symptoms: Excessive noise from the timing chain, particularly during startup or acceleration.
    • Solution: Replacement of the timing chain and related components.
    • Estimated Cost to Fix: $2,000 - $3,000+
    • Recalls: None Found

Transmission

• 8-Speed Automatic Transmission
  • Shifting Delays:
    • Description/Symptoms: Hesitation or delay in shifting gears, particularly when accelerating or decelerating.
    • Solution: Updating transmission software or replacing the transmission control module.
    • Estimated Cost to Fix: $500 - $1,500+
    • Recalls: None Found

Suspension

• No Issues Found

Electrical

• Infotainment System Glitches: * Description/Symptoms: Random freezes, restarts, or lagging of the infotainment system. * Solution: Updating the software or replacing the infotainment unit. * Estimated Cost to Fix: $500 - $1,500+ * Recalls: NHTSA Campaign Number 18V605000

Exterior

• Rust on Exhaust System: * Description/Symptoms: Rust formation on the exhaust system components, particularly the muffler and tailpipe. * Solution: Replacement of affected exhaust parts. * Estimated Cost to Fix: $1,000 - $2,000+ * Recalls: None Found

Interior

• Panoramic Sunroof Rattling: * Description/Symptoms: Excessive rattling noises from the panoramic sunroof when driving over uneven surfaces. * Solution: Adjustment or replacement of the sunroof frame or seals. * Estimated Cost to Fix: $500 - $1,000+ * Recalls: None Found
• Navigation System Inaccurate: * Description/Symptoms: Incorrect or outdated map data, leading to inaccurate navigation. * Solution: Updating the navigation software or replacing the navigation module. * Estimated Cost to Fix: $500 - $1,000+ * Recalls: None Found

Summary

The issues reported with the 2018 Lexus GS300 are generally moderate in severity and cost of repair. While some issues can be more expensive to fix, such as timing chain noise or transmission problems, many others can be addressed at a relatively low cost. Overall, the 2018 Lexus GS300 is a reliable and well-built vehicle, but it is still susceptible to certain mechanical and electrical problems that should be considered before purchasing.