My daughter brought her 2004 ES330 in because the ...

My daughter brought her 2004 ES330 in because the Check engine,VSC lights on and TRAC off warning came on. This is typically a message for the gas cap not being on correctly or a leak somewhere. I had previously put it on my error code reader and that is what it told me. I cleared out the error code and a week later it came back on. She brought it in to Lexus and they put on a new gas cap. A week later same thing happened and she brought it back and after talking to the service manager he agreed to re diagnose the car to help find out where the leak is coming from.Very happy with the resolution.