One problem related to window regulator failed has been reported for the 2002 Buick Lesabre. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Buick Lesabre based on all problems reported for the 2002 Lesabre.
I also have experienced window regulator failure, passenger front side went down and that?s where it stayed. A search on the internet has proven out that this is a major problem on Buicks of this era as well as other models using the regulator mechanisms from the supplier to gm. My bill ended up over 500 dollars for repair at a gm dealership. This is a major problem, verified by one of their mechanics. I called gm customer satisfaction department and spoke with a gentleman who also verified it is a major problem, but gm will not stand behind them after expiration of the warranty. I love this car but am seriously considering trading as I am fearful of what the future holds with the other windows after researching the problem.