Table 1 shows two common other fuel system related problems of the 2018 Lexus LS.
| Problem Category | Number of Problems |
|---|---|
| Other Fuel System Pump problems | |
| Other Fuel System problems |
Vehicle hesitates while driving. Recall announced to us 1/20/2020. Have attempted numerous times to have dealership do the free recall repair. Even while there for oil changes and regular services throughout this year. Have been told each time they need to order the part and they will call me. 10 months of this now and car is unsafe- they keep stalling on doing the repair that is a safety risk for myself and family. Want this documented if something happens to us and we have an injury or death because the car has been hesitating and they continue to tell us they don't have the fuel pump to do the repair.
VIN: [xxx] current mileage: 70,440 vehicle: 2018 Lexus Ls500 in November 2021, I purchased this vehicle with approximately 19,000 miles. Routine maintenance was performed every 7,500 miles. At approximately 44,000 miles (in 2023), the vehicle experienced severe engine failure following warning lights for parking support brake malfunction, secondary collision brake system malfunction, check engine, reduced engine power, and traction control off. The vehicle lost power and stalled. The engine began emitting smoke and was replaced under manufacturer warranty in March 2024 at a Lexus dealership. The repair exceeded $50,000 and included a new engine block and related components. Shortly after receiving the vehicle back, additional major failures occurred: fuel pump failure resulting in “reduced engine power” and restricted speed (~20 mph). The pump was replaced under warranty (approx. $4,600 cost). Brake system failure occurring three days after that repair (January 2024). As of October 28, 2025, the vehicle has again failed and is currently at christian brothers automotive with the following findings: “fuel pressure sensor located under the intake manifold is actively leaking fuel when the engine is running. This creates a fire hazard and can affect engine performance and fuel pressure regulation. Immediate attention required. ” this repeated pattern of engine and fuel-system failures within a short period after a full engine replacement raises serious concerns about component reliability, workmanship, and safety. Fuel leakage near the intake manifold poses a significant fire risk. There are currently no open recalls addressing this defect. I request that NHTSA investigate potential defects or systemic issues in the engine or fuel-delivery systems of the 2018 Lexus Ls500, as these failures appear premature, hazardous, and recurrent despite dealer and manufacturer repairs. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).