When I first start driving up to ~35 mph I get a squeal that sounds very similar to the squeal you hear when you have older brakes that need replacement. It is not very loud but It is definitely coming from the rear. It is not consistent/doesn't happen after I have been driving for a while.

Does anyone have any thoughts or had something similar happen?

 

I had a similar issue recently from the driver's side rear wheel. Turned out to be that the brake pads were not installed properly with missing hardware. Not sure how that created the squealing sound as they were working fine for the past 20k miles, but maybe they became misaligned and started dragging on the rotor? Had them re-installed with the appropriate shims and clips and the noise went away. I ended up replacing the rotors and pads when I got back home (I was on a road trip at the time), using as a guide and have not had any further issues since.

 

Possibly a caliper piston not retracting when the wheel cools off overnight, and then rubs a bit until it heats back up on the next trip,

 

Thank you. This honestly was my first thought but I couldn't wrap my head around it just randomly starting. Appreciate the video too.

 

That is a good one too, thank you, I will take a look. Appreciate it.

 

Year ? ... Mileage ?

 

2019, 106,880. Bought at about 72k 2.5 years ago.

 

The calipers are known to be somewhat (internal) corrosion sensitive ... to the piston sticking comment above ... so best to flush the Brake Fluid every 3-years to purge moisture and keep the system clean ... or use test strips to stay just ahead ...

 

As mentioned - most certainly brake related - but you can also look to the rear U-Joint as a potential culprit...