The Lexus RX 330, introduced in 2004, generally enjoys a reputation for reliability and luxury. However, like any vehicle, there are certain model years prone to common issues. Among them, the 2004 and 2005 models have been noted for transmission problems, particularly concerning harsh shifting or slipping gears. These issues often stem from faulty transmission solenoids or fluid leaks, leading to potential costly repairs if not addressed promptly. Additionally, some owners have reported issues with the vehicle's electrical system, including malfunctioning navigation screens or intermittent power window failures, more prevalent in earlier model years. While these problems aren't universal, prospective buyers may want to exercise caution and thoroughly inspect any potential purchase, paying close attention to maintenance records and conducting a comprehensive pre-purchase inspection to mitigate these potential concerns.