While in Sentry Mode, Model Y may shift through three
states as a response to its surroundings-Standby, Alert,
and Alarm:
Standby. Model Y is automatically "on standby" when
you activate Sentry Mode. The cameras constantly
monitor the surrounding area for possible security
threats.
Alert.
The charge port is located on the left side of Model Y,
behind a door that is part of the rear tail light assembly.
Park Model Y to ensure that the charge cable easily
reaches the charge port.
With Model Y unlocked (or a recognized key is within
range) and in Park, press and release the button