1990 Cadillac Brougham you changed the battery now the odometer reads error how do you get it to read mileage again?

To reset the odometer error on a 1990 Cadillac Brougham after changing the battery, you may need to disconnect the battery again and leave it disconnected for about 10-15 minutes to reset the vehicle's computer. After reconnecting the battery, check if the odometer resets itself. If the error persists, consult the vehicle's manual or a mechanic for specific procedures or diagnostic tools needed to address the issue.