2002 Buick Lesabre. VIN [xxx]. vibration in steering wheel, floor, and hard surfaces of interior, at speeds starting at 60 mph. The tires have been replaced twice. Redesigned upper control were installed. None of these have corrected the problem. On 7/25/2003 the Buick service conducted a roar test with an electronic vibration analyzer and found readings of 02 to 03 hertz. The "standard" should be below 07. Why would they do all the previous work if they could of done this test earlier and saved a lot of money. I believe they made this standard to avoid fixing the problem. I found 4 Buick tsb's ( #00310007A, 10/01/01, #000310007B, 06/01/02, #000310007C, 08/01/02, and #000310007D, 03/01/03) tat refer to a vibration problem. I have contacted Buick by letter and telephone ( service request #1-238363526, August, 2004). I filed a complaint (and lost) with the BBB [xxx]. I feel that Buick has stonewalled me by refusing to provide me with the "luxury" car I paid for. There is a thump/popping sound felt in the left front and right front seat at shoulder height as if shifts forward when coming to a stop. Dealership tried to lube but no change. Replaced bearing mount shield strut and seat to eliminate noise. Passenger side seat back support pushes into lower back of passenger when coming to a stop. Passenger seat back horizontal support replaced. Updated 07/24/2012 information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6)

- Levittown, PA, USA