I think its terrible the updates don't come but every 1-1/2 to 2 years. My 2013 JGC built in 2012 june, still has no updates. THAT SUCKS !!!! When my wife and I were on our trip out west in April/May the GPS took us on a detour of approx. 75 miles out in the desert in New Mexico/Arizona that no longer existed. If you wanted to see someone Pissed off it was me. It seems to me that GPS system in my 2013 GPC is obsolete if you can't update it more often. Its CRAP !!! I would think On Star has a big lead over this GPS system in my 2013JGC. With all the technical advances today in I Phones (I don't have one but will soon) that would have directed me better. Had we had an update that would not have happened. The rest of the performance of the GPS was good, actually very good but that's the kind of thing that makes it secondary.