Headlights problems of the 2008 Cadillac DTS

Tl the contact owns a 2008 Cadillac Dts. While inspecting the vehicle, the contact noticed that the headlights were projecting too much heat and caused the plastic covers to burn and melt from the inside. The vehicle was taken to riley Chevrolet Buick GMC (2033 christy dr, jefferson city, mo 65101, (573) 298-6142) where the contact was informed that the failure was cosmetic. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was 105,000.

Dash lighting is dimmed when ever headlights are on during daylight hours. Automatic system does not return panel light levels to daylight brightness. This makes the dash invisible in bright daylight. Condition exists until the sun is high in the sky. Dealer says this is a design issue! owners manual says that "parade dimming" capability in car electronic is intended to prevent this from happening. This is a major safety hazzard. I have taken the car to the dealer several times, they have no cure. I have called the customer assistance number. No one ever returns my call. E-mail are also unanswered.