When I first bought the truck, I had played around with saving locations and renaming them to access later. Favorite restaurants, locations, car washes, etc. There was some confusion on my part as to what exactly they were saved as - Favorites or POI's?? There is a difference in what they're saved as and how you access them. I just never figured it out.
I've only had the truck for about 2 weeks, but I am a pretty heavy GPS user. Here is what I have figured out: When you manually save a position, like you've driven to your favorite new restaurant and you want to save it for later navigation (by pressing the vehicle's location on the map and pressing the Save button), it gets saved to the vehicle's
(not the phone, obviously) contacts. Not only that, but you must go in to the Vehicle Contacts (which means changing contacts from your phone to your vehicle), finding what you just saved....with might be something as meaningless as "city-name", or it could be an address (123 Main Street).
The next step is to select position/contact you just saved, which is often, but not always, at the top of your Vehicle Contact list, and Edit its name, changing it to "My Fav Restaurant" or whatever. AND saving it is a little confusing....there is no Save icon on that edit page, just a check mark on top of a floppy disk icon if I remember correctly. It's just to the right of the Name field in the Edit screen. If you back out of that edit page you MIGHT be presented with a "Save?" button unless you have pressed the floppy icon, I do not remember.
Now my confusion is what the GPS system actually DOES with that contact for later navigation. I know I can can go to the Destinations:Contacts; and change the contact source to Vehicle and then navigate to it, but I THINK that might not be necessary......just saying "Destination, Contact...My Fav Restaurant" might also work. BUT, more experimenting is needed. And I am not at all sure I can do that if the truck is moving!
The reason why I never bothered with it....because after I visited the dealership to update Carplay, they literally deleted everything. All the locations I had saved were completely gone. Then, I tried to research on how to backup my saved locations? Tried calling dealership asking them 'How' or 'if' they backup the information and *please don't delete it*. They didn't have any answers for me. So I stopped saving locations ...
There are directions for saving your contacts to a USB drive, but I have not tried that yet. They are somewhere in the InfoTainment manual. I have successfully uploaded POIs from my PC to my truck's navigation system. (If anyone needs my directions let me know). So those contacts/POIs I earlier uploaded have a backup on the USB drive I used.
Of course you don't need to worry about saving the contacts from your phone, they are still on the phone (at least) and that list should update and populate the nav system every time your phone connects. But that brings up another issue.....Using the restaurant example above, if I have contacts on both my phone AND on the vehicle, which actually gets used if I say "Destination: Contact.....My Fav Restaurant"?
I know there are many who don't use the GM navigation system at all, but I paid good money for it, dammit, and I'm doing my best to understand it! I have and have used Android Auto a few times, and like much of it, but for longer trip navigation I much prefer a GPS. (For a one time, point to point drive Google Maps is okay) However, my stand alone Garmin 2797 with lifetime maps is much, much better at ANY GPS function on either the GM or Google Maps <IMHO>, but I'd prefer to leave it in the console for "emergency" use. I don't want to spoil my truck's exquisite good looks by having a GPS stuck to the windshield and have the power cable dangling down. Call me vain.