One problem related to starter solenoid 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.
Transmission no longer shifts into 3rd or overdrive. With shifter in overdrive and in stopped position once you take your foot off the brake to begin acceleration the torque converter slams to a stop and the engine shuts off. Transmission fluid full at all times, engine warmed up. Repeated stalling, repeated tachometer quits. Repeated engine quits when you place in overdrive from neutral. Must start movement by placing in lower gears 1 2 or 3. This transmission never shifts out of second gear. Put it on code analyzer and got 2 codes that indicated pc solenoid torque converter solenoid issues. Seems like these 2000 Buicks have recurring defects and gm won't standby their product. Why on earth would a company that designs cars ever put a battery under a car seat. One spark with hydrogen gas under that seat could kill an infant in a car seat if it exploded. . Come on!!!.