Tritipnbeer

I have the same issue (2019 Denali) so I guess I'll take mine it at the next oil change. Thanks for the info As an aside. We test drove a Tesla Model 3 for my wife this weekend. That autopilot is awesome! GM needs to step it up a few notches in that department.

Took the GM financing for the incentive. Paid mine off with cash on the first payment. Title came in the mail 2 weeks later. No hate mail or complaints from GM or the dealer. Easy peezy.

Dead battery?

Update: Everything works now. Truck sat overnight and check engine light is off and nav continues to work. I'm thinking the reset of the power to the system did it when I unplugged the harness.

So now the Nav suddenly works (not sure why/how) but the check engine light came on. I did unplug the wiring harness behind the glovebox for second but that's it. Fix one find one...

2019 Sierra Denali Ultimate. 900 miles. Truck is great. Love it. However after 2 days the Nav started acting up and now doesn't work at all. I get an error saying the SD card has been removed. SD Card is perfectly fine and in place. I've tried reseating, rebooting multiple times... nothing... I've also noticed the USB plug in the center console right next to the SD card slot does not charge anything. I'm suspecting a loose connection or bad wiring harness. I've checked the connectors directly behind the card slot and reseated them but no dice. Where does the other end go? Behind the glove box? Not trying to tear everything apart but it is annoying. Anybody got a fix? Really don't want to take it to the dealer and wait around while they figure it out if I don't have to. On a positive note as a result of this bug I've discovered Android Auto and love it. Almost better than the infotainment system itself!

I discovered that if you leave the the turn signal on for a few minutes on the highway the dash display tells you to turn it off. Simple but nifty. 2019 Sierra Denali

I've notice mine only automatically engages when I park on an incline. When level it does not engage. I like the feature.

Just picked up this 2019 Denali 6.2L with ultimate package in Onyx Black 2 days ago. Love it! Had a 2009 Tundra, 2013 4 Runner and 2014 F250 prior. This truck is next level.