Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › 2002 Buick LeSabre won’t crank/ won’t start › 2002 Buick LeSabre won’t crank/ won’t start October 13, 2019 at 4:08 am #894672 Richard KirshyParticipant Just spit balling here.. But if after disconnecting the battery for some time the issue resolves itself. I would be looking towards the BCM and its connections. That vintage GM was noted for having issues with there BCMs BTW