2014 LEXUS IS Structurebody Problems

I've owned my 2014 Lexus IS 250 for over 10 years. I've almost always kept my car covered in a garage at work and at home, and I've never had a problem with the dashboard until now. Just last month (October 2025), my dashboard started melting and getting extremely shiny and sticky during the day - so much so that I can't see out my front windshield because of the glare from the shiny dashboard, making it very dangerous to drive. After my car is out of the sun for a while (like my garage), the dashboard eventually cools down and is no longer shiny or sticky. It has a cloudy, smudged look. However, once I start driving again during the day, the sticky, melting, and shiny dashboard returns. I've tried calling Lexus Corporate to assist with this serious safety issue, but they refuse to help, claiming my car wasn't...