Manually Closing the Frunk
WARNING   WARNING:  Do not allow people or pets to climb inside the luggage compartment, and do not shut the luggage compartment with a person or pet inside. Failure to follow this instruction could result in personal injury or death.

Lower the frunk and apply light pressure as it drops.
Note:   Before driving off, check the instrument cluster for a frunk ajar message or warning indicator. Failure to do this could result in unintentionally leaving the frunk open while driving.