Two problems related to transmission solenoid have been reported for the 2000 Buick Lesabre.
2000 Buick Lesabre developed problems with shifting properly. The p/c solenoid switch failed which caused the vehicle to shift erratically while being driven. The consumer contacted the manufacturer about this problem but the since the vehicle was out of warranty they provided no financial assistance.
Transmission failure, causing hard shifts and shuddering when driving. Gm has a TSB out for this sympton but denies any problem with the transmission. Dealership tech confirmed with diagnostic test and refered to bullitin #00-07-30-002b pressure control solenoid valve assembly. Gm refuses to pay for even a portion of the repairs inspite of their TSB indicating a problem with this perticular make and model. The vehicle was purchased used from my father inlaw with 81k miles on it. 12/26/04 and was very well maintained. Iif they issue a TSB for this specific problem, they should take some responsibility iin corrective repairs as laid out in their own TSB. Gm refuses to own up to this problem.