I have been fooling around with the Superchips tech help people for weeks in attempts to get my Flashpac's TPMS to accept a new tire pressure. I have become aware in another forum that others may also have this issue. The only advise I get is to download the latest software, which has not helped in 3 or 4 attempts, and that they will call me when they have a fix. Mine was defective new out of the box. When I suggested they replace the Flashpac, I was told they did not think this would help, which I translate as the software is screwed. The issue may apply to 2013 Wranglers. Not positive.