2006 Toyota Highlander Hybrid lighting problems

Tl*the contact owns a 2006 toyota highlander hv. She noticed that there was a round circle around the lens area on both headlights. The vehicle was taken to an authorized dealer where she was informed that the lens on both headlights were melting. The vehicle was not repaired. The failure mileage was 51,000 and the current mileage was 51,876.

I own two highlander hybrids, 2006. One was purchased in september 2005, the other in september 2006. On the older of the two, in front of the daytime running lights I have exactly the same melted plastic shown in multiple pictures I found online. On the newer one, you can see imperfections forming on one side, and a smaller fully melted area in the other. I am in touch with toyota and they are offering new lens parts and I must pay labor.