I saw that there were others with the same problem. I called the dealership to see if it might be a recall - they did not have the time to even look it up / or even tell me they were aware of the problem. I know of another owner who informed me of the problem - that was 9 months ago. I had just purchased the car. I have had Buick's for 20 years and never had a problem with the lighting regulator. GM has really gone down on customer service.