I have had these fail in a few vehicles. The problem is not GM specific. They are oil filled. Last set was replaced by my service advisor right in the bay in 5 minutes ... didn't even need a tech. They are relatively inexpensive to replace and are generic units. Just like windshield wiper refils, just make sure you get the right length after your vehicle is out of warranty.
Founding member of the "No Hummer Krew"
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Founding member of the \"No Hummer Krew\"
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