One problem related to tail light switch has been reported for the 2000 Buick Lesabre. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 Buick Lesabre based on all problems reported for the 2000 Lesabre.
I had to change the burned out bulb in the left rear tail light/turn indicator. The socket was so charred and melted that I had to purchase a complete new socket. I am concerned as to why this socket got so hot! I have not looked at the right side. I have possession of the burned part.