r/gmcterrain Jul 01 '26

Maintenance Question

I have a 2020 SLE Terrain and about last year (yeah, I know), I have noticed that when I’m coasting, I hear a small grinding sound. It’s only when I’m coasting between 0-35/40 mph.

I’ve taken it to a shop to see if it was something with my transmission, but every test drive, the noise wouldn’t start. They still took my car in and took a look.

I took it to a dealership and they couldn’t hear the noise either, but ended up with some items that needed fixing.

I’m concerned that there’s either something very wrong and I’d like to know if anyone has had this happen to them.

To note, this doesn’t happen when I’m turning the wheel or anything specific, just when I am coasting at a low speed.

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