Not having much info to go on, have you contacted the manufacturer to inquire on a new dash? There are ways to plastic weld too. Can you take and post a picture of the iussue?
Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7