To find it, you'll likely need to:
1. Consult your owner's manual: This is the best place to start. The manual should have a fuse and relay diagram showing the location.
2. Look for the fuse box: Many Cadillacs have the fuse box under the dashboard, often on the driver's side. The flasher relay is often mounted near or within the fuse box itself.
3. Look for a small, square or rectangular relay: The flasher relay is a small electrical component. It may be labeled, but it often isn't. You may need to compare it to pictures online to be sure.
If you can't locate it using these methods, searching online for "1996 Cadillac [Your Model] fuse box diagram" or "1996 Cadillac [Your Model] turn signal flasher location" with images may help. A mechanic or auto parts store can also assist.