2019 GM IOU NAVIGATION UPGRADE AFTER YOU INSTALL
After you install
the IOU Navigation Radio. Shut the car off and get out of the vehicle
and close the doors. Wait 2 minutes, for the vehicle to sleep.
Once you have waited the two minutes go
back into the vehicle and you will notice that a blue bar will show
up. This takes about 30 seconds, then the screen will go blank. This
resets the radio back to factory settings and links up with your
ONSTAR subscription.
You will notice that the logo will be a Cadillac
splash screen. This is the default splash screen. Don’t worry it
will come back up Chevy after you sleep your vehicle again ( Shut the car off and get out of the vehicle and close the doors), and you will than be able to proceed with the next step.
When you get to
this screen, press the Not a Demo vehicle. Then you press the 3 boxes
for check marks and press Continue. This will have your Navigation
System call OnStar you can than just hit the end button. You will notice
everything is at default.
Turn off your vehicle and let it sleep for
2 minutes again. You will notice you have the Splash Screen of the
vehicle you are upgrading to NAV. Now you can play with your new
Navigation System.
This will also happen automatically after the vehicle has gone through a few full sleep cycles (Being off, and left alone overnight).