Hi Debbie and welcome to the LOC.
First, congratulations on having the most unusual problem I've ran across. LOL But seriously, can you please come back with a more specific and detailed explanation regarding the problem of the melting dash. A photo or two would be very helpful.
You can also go to Lexus.com. From their home page you can navigate to other departments which may be able to provide some help.
Other members will log on today and offer their help. I am VERY interested in figuring this program.
Paul