Buick LeSabre (1999) - fuse box diagram - Auto Genius Jan 25, 2017Buick LeSabre (1999) – fuse box diagram. Year of production: 1999. Driver’s Side Fuse Block. The driver’s side fuse block is to the left of the steering wheel, under the instrument panel. Buick LeSabre - 1999 Fuse Box Diagram Buick; LeSabre - 1999 Fuse Box; yellow. blue . 2-17. If the SECURITY light comes on for one minute and. then shuts off while the ignition is on, the security. system has detected a problem with itself. See your. dealer for service. If a door or the trunk is opened without the key or remote.