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2015gmcowner

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Everything posted by 2015gmcowner

  1. Well let me help you all out. So my 2015 Sierra was doing the same thing. Not starting, starting then shutting off, theft deterrent system on the dashboard. So my GMC dealer helped me out and asked if there was a scan type fob on my keychain, like for a gym, laundromat, or whatever. As soon as he said that it hit me. I had just joined a gym and put a fob on my keychain. Take it off and everything will be just fine.
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