Headlights problems of the 2007 Cadillac DTS

The contact owns a 2007 Cadillac Dts. The contact stated while driving, the headlights failed. The vehicle was taken to a dealer but was not diagnosed or repaired. The manufacturer was made aware of the failure and informed that the VIN was not included in any recalls. The failure mileage was 78,276.

The issue was regarding the failure of the ballasts in the hid headlights which, per ntsb and other websites, has been a significant issue with this and other gm models. The issue seems to be diagnosed generally as water backing down the headlight assembly into the ballast causing the failure. . Read more...

The contact owns a 2007 Cadillac Dts. The contact stated that while driving 15 mph, the front passenger side headlight stopped illuminating. The contact stopped the vehicle and shut it off. Upon restart, the headlight began illuminating as normal. The failure recurred often. The vehicle was taken to an authorized dealer for diagnosis. The dealer stated that the entire headlight assembly needed to be replaced. The vehicle had not been repaired. The manufacturer was notified and they stated that they would only pay for half of the repair costs. The failure mileage was 27,000 and the current mileage was 29,560.

My lens covering is discoloring and has become clouded over. This was brought to the dealers attention under warranty. He said this is not covered. How can this be when now the headlights are significantly less effective through this cloudy lens. Other Cadillac owners in the dealer hear my conversation and they had the same problem. They had the lens replaced at a cost of over $350. A blind eye seems to be a true safety issue that should be a recall item.

The left headlamp assembly had to be replaced due to corrosion. Approximately a month later the right headlamp had to be replaced for the same reason. I have subsequently have learned that Cadillac put out a bulletin, document id #08014a, that addresses the problem with corrosion in the headlights. If the headlights failed out at night, in the rain, clearly it is a safety issue.

Like many other caddy owners are having problems with the twilight sensors operation. Problem being the headlamps come on too early and go off too late resulting in a dimming of the interior dash illumination. This causes the driver not to be able to determine vehicle speed. . . Especially if its still bright enough out for sun glasses to be used. My 2007 Dts and others. . Read more...