One problem related to automatic transmission has been reported for the 2003 Buick Lesabre. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Buick Lesabre based on all problems reported for the 2003 Lesabre.
: the contact stated while pulling out from a stop sign or stop light, going 10-15 mph, the vehicle would not immediately accelerate. The vehicle eventually accelerated; sometimes taking 15-30 seconds and up to five minutes. The vehicle has been to the dealership five times. The dealership ran diagnostic tests and the tests failed to show any codes to indicate a problem. Updated 08/28/06.