All the documents state that it will remember the last settings if Bluetooth is lost. Once it is set, the only reason you would need Bluetooth is if you needed to apply the brakes manually.
To the OP.......not sure what you've done since the email from your dealer but.....if nothing, much cheaper to download the jscan app, purchase a VIN license and the below items. This will allow you to do a bunch of things.
I updated the tire size on mine and the shift points are much better...
Dan here from Southern Maine. After many many years of owning Ford trucks, I've downsized to a Gladiator. So far pretty happy with this rig. Many more mods to come, so far I've added some fog/driving lights, tonneau cover, LED headlights and backup lights in the bumper reflector pockets