Running lights on 1989 Olds Regency will not go out any ideas on how to disconnect or fix the problem?

If the running lights on your 1989 Olds Regency won't turn off, first check the headlight switch and ensure it's fully off or not stuck in the "on" position. If that doesn't work, inspect the wiring for any shorts or corrosion, especially around the light switch and fuse box. You can temporarily disconnect the battery to turn off the lights until you diagnose the problem further. If the issue persists, consider consulting a mechanic or an automotive electrician for a thorough inspection.