Fan-like noise while off

[mmmhhhmmmmmm]

On more than one occasion I've noticed some kind of noise, possibly a fan, coming from the LC after it has been off and parked for hours. I'll go out into the garage and something is spinning/blowing/generating a noise. It eventually stops, but I wouldn't know how long it was happening. It might be coming from the rear of the car.

Any ideas what function this might be? It's getting cold here, so I don't think it would be heat related.

 

[KyLandcruiser]

This is probably the evap canister running a leak test. This test is normal operation.

 

[Pepco]

Yes Ive heard it. Our RAV4 does the same.

 

[mmmhhhmmmmmm]

This is probably the evap canister running a leak test. This test is normal operation.

Ahh yep there it is in the manual ... I was unaware of this system and didn't know what to search for. Thanks!