Buick Lesabre owners have reported 2 problems related to automatic transmission control module (under the power train category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Buick Lesabre based on all problems reported for the Lesabre.
Transmission does not drop into 1st gear when auto stops. When accelerating trasmission drops into 1st gear with a loud "bang". Buick service manager says is pressure valve or electronics controlling pressure valve is the cause. Problem is intermittent and, because of this service dept. Has been unable to identify exact problem through computer evaluation. Service manager states repair will require removal and partial disassembly of transmission to accurately diagnose problem.
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all problems of the 1999 Buick Lesabre
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Abs warning light and traction control light stay on while driving.
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all problems of the 1997 Buick Lesabre
🔎.