Two problems related to power train have 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.
Fuel gauge false reading. Hard shift's.
Took vehicle with 55,100 miles to the authorized gm dealer after shuttering and barely beginning to move while driving in traffic. The authorized gm dealer stated "inspected, no codes in system, erratic shift points, delay shift thru 1st and 2nd gear, no 3rd gear, goes to 4th gear. Recommends srta trans (3yr/100,000 warranty) $3782. 64. ".