Apple CarPlay in 2018 Hyundai Elantra

After almost 7 years of using my Apple I - Phone with my 2018 Hyundai Elantra Apple Carplay has suddenly stoped working. I have used 3 different charging cords, all of which appear to be working and disconnected my I - Phone from the car network and reconnected it several times! Nothing works! Why is Apple Carplay no longer working? What can be done to fix it. Apple customer support has been unable to resolve this issue!