Noise from rear when not running or plugged in

[Bsanders]

I walked downstairs and heard this noise. It’s been in the garage for hours, not plugged in and nothing showing on the dash. Anyone know what this is or heard yours doing this?
https://youtube.com/shorts/TcNxx21uYvw?feature=share

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[Jehovasfitness]

it's normal. Our new Rav4 Prime will have a sound near the muffler several hours after shutting down. I want to say it's an emissions thing. I want to say it's about 4-5 hrs after the car being turned off.

Sounded almost like a fuel pump constantly running. Heard it across my 3 car garage one night and was like "wtf is that noise"