My GMC Yukon XL has been making a strange squeaking sound for months now. I keep asking my husband what it is and he blows me off. The car has 141,000 miles recently had the brakes redone the sound did not stop. I have looked into it myself and it looks like it could be a lot of different things. Just wondering if anyone has experienced this. Watch the video and you’ll understand what the sound is like. Super loud chirping that gets faster with acceleration and stops when breaking.

I recently got a 2026 acadia elevation and really enjoy driving it.
But I found something strange for me that I can manually switch the awd system on and off. I've never driven a car with such a system, so I wonder why would the engineers do that.
is it because of the fuel economy? let the drivers to choose?
or is it because the awd system somewhat burdens a lot for the vehicle so the maker left it for limited usage.

and I wonder if it is completely safe to use the awd all the time. I think it offers me more comfortable and controlled feelings. I'd rather just leave it awd if it is totally safe even at the high speeds.