Car starts when it wants to. Put in key secruity light goes off still doesnt start. Whewn it does start strong crank etc. Want to disable passkey 3 system,no newrockies pro system wont work car not listed. DO not want to pay a dealer 1000 dollars for a car not worth that much wan to disable system....anything that will work?

Cars & Trucks - Buick - LeSabre - 2001 Buick LeSabre