One problem related to vehicle shudder has been reported for the 2005 Buick Lesabre. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Buick Lesabre based on all problems reported for the 2005 Lesabre.
(1) started as intermittent problem when engine was cold and car was stationary - stepping on accelerator resulted in no motion followed by car lurching/jerking into first gear; the problem became more repeatable over a three year time period; just prior to failure, the car would shake and make noise when accelerating from a stop and when coming to a stop; at failure, the car would not move (forward or in reverse) (2) complete failure of automatic transmission - surprising because auto only had 22,300 miles on it when the transmission failed (3) replaced transmission.