2024 Lexus LC Problems: 1 Issues Every Owner Should Know
2024 model year · 800+ owner reports · Updated April 2026
According to Au7o's analysis of 800+ owner reports, the 2024 Lexus LC has 1 documented known issues. No issues are rated critical, indicating generally reliable ownership. The most commonly reported issue is Exhaust Drone at Highway Cruising RPM with 800 owner reports. Across all issues, repair costs range from $200 to $1,500. DIY maintenance guides at au7o.io.
All 1 Known Issues
On the 2018-2025 Lexus LC, the LC500 V8 produces a prominent exhaust drone in the 1,800-2,200 RPM range, which corresponds to 65-80 MPH highway cruising in the 10-speed automatic. The drone is a resonance issue where exhaust frequency coincides with cabin structural resonance, creating a low-frequency hum that becomes fatiguing on long highway drives.
Common Symptoms
- Low-frequency humming at highway cruising speeds
- Drone occurs specifically at 1,800-2,200 RPM
- Noise reduces in Sport mode at higher RPM
- Fatiguing cabin resonance on long drives
How to Fix
Install aftermarket exhaust resonators or a Helmholtz resonator to cancel the drone frequency. Some owners have had success with Dynamat sound deadening material applied to the trunk floor and rear firewall. Switching to Sport mode forces lower gears and higher RPM that avoids the drone window.
What Owners Are Using
Parts and tips from 800+ owners who fixed this issue
- TipAdding Dynamat Xtreme to the trunk floor and wheel wells significantly reduces the drone. Two boxes cover the key areas and the difference is immediate.