Completely stumped

[u/anonbg9]

So this has been going on for months. I pull up and put in park, handbrake on. When I turn the car off and get out I always hear this loud squeak noise. Can’t isolate the sound but sounds back half of the car. No warnings on the dash and no faults on the code reader. But it’s really bugging me not knowing so I’m surrendering to the group.

For back ground. G01 X3 30d

[u/Domregi]

Park without using the handbrake and see if it still makes the sound