Two problems related to transmission gear slipping have 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.
When the vehicle gets warmer during transit, the transmission begins to slip. It gets worse and the duration of the slip begins to. Last longer.
Autoatice transmission slips.