Brand New, Humming Along...even when parked/off. ???

I just bought a 2019 TRD ORP last week. It's got 266 miles on it. I most recently took it for a quick drive...maybe 15 miles into town and back. It's cold out today - maybe 38 degrees during my drive. But I parked in my garage and turned it off (I feel like that should be obvious...but JIC). Anyway, about 5 hours later, I walk into the garage and my new beauty is humming. Sounds like it's coming from the back of the vehicle. Double checked...it's not on. I see no warnings. The garage is probably 50 degrees...so I doubt after 5 hours it's cooling anything. Any ideas?

 

It’s the fuel system checking for leaks. Normal

 

^^ this. Something about fuel evaporation. Freaked me out the first time I heard mine doing it.

 

Maybe a bees nest?

 

Thank you @SCMountaineer & @Ramrod88

 

Np bro anytime...

 

It's part of the NSA/CIA/FBI tracking mode that comes free on all new vehicles.

 

You left your Crash Test Dummies song on repeat.....doy

 

Yep it's normal. Freaked me out when I slept in the back last year though haha.

 

Makes me want to go trade the runner for a mini bike straight up