Help! GX rear electronic sway control? (1 Viewer)

[slowhogg]

I have this on the 150 page but wanted to know if any of you know about this:

I was in my driveway loading my golf cart on a trailer when going in the garage I heard a faint motor running under the rear end of my wife's 2015 GX 460? It had not been driven in several hour and it does not have rear air suspension so I crawled under it.

So the second pic is the box/pump making noise? and it's goes to the piston in third pic attached to rear sway bar?

Anyone know why this motor/pump would be running hours after last use?

Any help would be appreciated,

150 page link here:
2015 GX 460 rear sway bar control/pump/piston?

 

[GXO]

KDSS leak? May be adjusting to the change in height with the unload.

 

[slowhogg]

So apparently it is normal and is a check release several hours after use, from 150 page response:

That's completely normal. About 3-4 hours after shut down your vapor canister leak check occurs and makes some noise.

Car buzzing when ignition off - ClubLexus - Lexus Forum Discussion
GX - 2nd Gen (2010-present) - Car buzzing when ignition off - To be more precise, the car made a rather low-pitched, faint buzzing noise from the rear of the car (somewhere near the rear wheels) after the car has been sitting in the garage for a few hours. The buzzing continued for about a...
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