Window regulator in left rear door failed at 36,799 miles.
Transmission failed at 39,067 miles, the planetary gears were welded according to dealer service department.
I bought the automobile based on my good service results from the previous Buick Century I had. The ride is good, but the problems I have had so far are not up to the standards I thought were Buick's.
I too had a problem with the rear windows. 2001 Custom model cost around $400 to fix each one! Buick should step up and rebate this problem.