How do I turn off the alarm going off when I try to reconnect the battery?

To turn off the alarm when reconnecting the battery, first, ensure that you have the correct key or remote to disarm the alarm system. If your vehicle has a manual override, refer to the owner's manual for specific instructions. Alternatively, you can disconnect the battery again, wait for a few minutes, and then reconnect it while simultaneously pressing the alarm disarm button on your remote. If the issue persists, consult a professional or the manufacturer for further assistance.