tthompso

Dropped our 2015 Yukon denali off on July 25 for an oil change and to check an error code. They say it was the temperature sensor - they ordered the wrong part and have now been waiting 3+ weeks for the correct part and harness to come in. Still no ETA on when parts will be in. Did some more digging and found this - TSB from last week- 18-NA-355 recommending fluid flush to resolve shuddering. I've been told it isnt related. So far all covered under warranty and loaner car provided but it sure isn't a Denali and its driving my wife nuts.