BoatALot

Yep, it just says NAV, not Onstar Nav. I believe it's a green icon.

Okay, yah, with the Appleplay I can play right through Maps connection / USB too. Any quirks or features anyone know I should know about that I should look for on my 2018 that my 2015 didn't have? Edit, yah, hoping the gas mileage goes up. Still on my first tank of gas, but so far expecting higher out of the LT with 4.3.

So, I got an offer from my dealer I could not turn down and just got an end of model liquidation deal on a 2018 Silverado LT. Liking it so far, similar to my 2015 was. Anyways, it has 'built in navigation' separate from the OnStar. I love it so far, but question is, do I need WiFi to continue for this or is it built in with GPS? Stupid question I know... meant to ask Dealer and for some reason my friend Google is inconclusive. Also, reading all the threads on the gas mileage. Getting about 20 mph with the V6. Was expecting higher for the truck with 200 miles on it, versus my 2015 with All Terrain tires that I was getting 22 mpg. What gives?