Join Date: May 2017
Location: Prescott, Arizona
I can't address the Stelvio specifically but I'm pretty sure that many modern technology packed cars do this to some extent.
My 2017 Golf R has every tech bell and whistle under the sun and does a faint beeping and occasional buzz when parked in the garage. My wife drives a new GTI and it has a similar set of noises.
Just think of it as "robots dreaming of electric sleep."
1991 S4 Spider "Gabriela", 2017 VW Golf R, 2018 VW GTI,
Previous obsessions; 2006 Mustang GT, 2006 BMW Z4M, 5 other Bimmers, Capri V6, Renault 5, Lotus Cortina, Sunbeam Alpine, Ducati Diana Mk 3, Norton Commando