ODB Jscan is an app for modern Jeeps. It's like an ODB scanner tool and more. I am not sure what it does for the Grand or Liberty etc. But for the JK it can do a lot.
for example. it will let you adjust tire size. it will let you set tpms threshold for wheeling. it can change your DRL to the fog lights if you want. and much more. Like simply push a button to activate your rubicon lockers in 4hi low whatever, same with sway bar disco.http://jscan.net/https://www.facebook.com/obdjscan/
app on the google or itunes stores.https://play.google.com/store/apps/details?id=net.clever.obd4uhttps://apps.apple.com/pl/app/obd-jscan/id1445903514
it's $28 per person , $20 for three vehicles or $17 each for 5 vehicles.
It is VIN locked not app locked so can swap phones or tablet or whatever for life of your ownership. I have watched this app for a long time and it is always getting better and with the release of Trail View it is getting so much better. You can download the app and play with it for free or just demo mode and see what all it can do.
Let me know if you want in , would be nice to get 5 people during the show and shine but if you want in and cant make the show and shine still can do it.
let me know here.
** almost forgot the most important thing lol.
Needs a ODB dongle to connect to.
i bought this one a few years ago, 2016 and it has worked with every app I connect to it with.https://www.amazon.ca/gp/product/B011NSX27A/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
and it is on the supported and tested list you can see here. If you have one already, it may work and there is a diag tool to test it in the app as well.http://jscan.net/supported-and-not-supported-obd-adapters/
if you want to try it, i will have the dongle at the show and shine you can connect and see it working.