Re: 2007 GC Limited
It's not a maintenance related message, but rather the electronics have picked up a problem.
The 2005-2006s had a TSB related to this message occurring unnecessarily, but I don't think that it applies to the 2007+
If you take it to the dealership, they will be able to see exactly what is causing the message. I home scanner will not be able to read those codes.
I'm sure others on this forum have dealt with this issue and may be able to provide more advice, plus, do a search and I am sure some threads will pop up.