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OnStar customer service doesn't seem to know anything about how their system works. I've called repeatedly to have them turn off the text messaging (that alerts me when my volt is fully charged); they stated that it will take 3 to 5 business days (!!) to click a simple button. I asked to speak with a supervisor; the placed me on hold and never came back. Even though I had given them my cell number in case we were cut off, after 3 days I've heard nothing (and their system keeps texting me when the car reaches full charge (usually about 3:30 in the morning). Terrible customer service from OnStar!


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