UPDATE: Just got it back today. They did the transmission flush. Everything seems to be OK so far. They ended up covering the cost of it since I was only a 1,000 miles out of warranty.
I'm sure this has been discussed on here before but recently in the past week I have been noticing a shudder in the transmission. A quick search online tells me this is a known issue with the 8 speed and has a class action lawsuit pending along with multiple TSB's released by GM. I have the...
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