Syncup Drive

So I purchased the Syncup Drive a few days ago and I live near the border and I was told the device would work even if I went to Mexico. I didn't tested it up until now my car doesn't show up where I'm actually at, it got literally stuck on the U.S side. I'm honestly not satisfied about this because I regularly go to Mexico in my car. Is there anything I have to do on the settings or this thing doesn't work at all outside of the U.S?