Expiration date notification device and method for puncture repair liquid

An expiration date notification method for a puncture repair liquid, comprising:

• activating an expiration date notification device for a puncture repair liquid installed in a vehicle that comprises
• a storage unit that stores an expiration date of a puncture repair liquid contained in a container,
• a notification condition setting unit that sets a notification period and a notification manner for notifying of a replacement period of the puncture repair liquid based on the expiration date stored in the storage unit,
• a notifying unit that notifies of the replacement period of the puncture repair liquid,
• a control unit that controls the notifying unit based on settings of the notification condition setting unit, and
• an optical reading device reads the expiration date on the container of the puncture repair liquid;
• inputting the expiration date read by the optical reading device into the storage unit;
• and
• notifying a user of the vehicle of the replacement period of the puncture repair liquid within a preset notification period including before and after the expiration date of the puncture repair liquid via a preset notification manner.