Whirring Noise

[marpel]

2022 Sierra 2500HD SLE.

 

Whenever I unlock the door(s) (fob in pocket, push button on handle), I hear a whirring noise emanating from below the vehicle, just behind the rear door (at least that is where it seems to be coming from). This noise occurs when I unlock by the front or rear door (driver's side, haven't yet tried passenger doors). The first time I heard this noise, I half expected to see an automatic side-step fold out from under the side of the truck, however, I have factory applied stationary steps, so obviously not that, but that's what the sound reminds me of.

 

Can anyone advise what this noise is from? It only lasts for a couple seconds, and not long enough for me to bend down and look under the truck to see if anything is moving.

 

Thanks,

 

Marv

[CamGTP]

Fuel pump.

 

It's self priming the system when the door in unlocked/opened like that.

[gemarsh]

Yep, fuel pump.

[marpel]

Excellent. Thanks for the responses.

 

Marv

[sheath]

Rats!  I was hoping the truck was arming the "Mother-In-Law Ejection Seat System." (MILES System).  Pretty sure that is in the Discomfort Settings Menu, or at least it should be.

 

To the moon Alice!