When it comes to the Lexus ES 350, most model years have been known for their reliability and performance. However, there are a few years that have had some reported issues that potential buyers might want to be cautious about. One such year is the 2007 model, which had some complaints regarding engine oil leaks and dashboard rattling. Additionally, the 2013 model year saw some problems with the transmission, specifically with harsh shifting. While these issues aren't universal across all vehicles from these years, it's always a good idea to thoroughly research and potentially test drive any used car, regardless of its reputation for reliability.