2016 LEXUS ES Power Train Problems

In April 2022, the timing cover seal on my 2016 Lexus ES 350 was replaced due to a leak. This was completed under warranty at approximately 84,785 miles. In February 2025, less than three years and roughly 56,000 miles later, I was informed by the same Lexus dealership during a routine service that the exact same issue—leaking from the timing cover—had reoccurred. There were no warning lights, engine performance issues, or visible signs of oil loss leading up to this. During my prior service appointment in December 2024, I was told the car was in excellent condition with no issues. I service my vehicle at every Lexus-recommended interval and maintain a full history of service records. The dealership has confirmed the new timing cover leak but has not been able to explain why the seal failed again. This is a major engine component that should not require a second repair...