Had that on mine, but a restart didn't fix it right way. Found a post on some other GM forum that it was an update issue... It went away a couple hours later.
Had a few of those... then a LOT more of them. Code reader always showed some kind of exhaust or oil/air mixture issues. In my case, it was either bad gas or a communication problem between modules. Required full reset at dealership to fix communication issues (no charge).
I've had that once as well... took me a while to realize what was happening. Something in the back of my mind knew something wasn't right, but it took a while for the rest of my brain to figure out it was the blinker.
Worst one yet...
That hung around for about a day. In the meantime I had no nav, no bluetooth, no backup camera, no remote start, no radio... etc. My dealer had no idea what it was or what to do about it. Made an appointment for the following week to "diagnose" it. A few google searches suggested that some updates can be sent via the OnStar cellular network and that one of them didn't download correctly. The next day it was gone and all was back to normal. Adding the following text just so this is searchable:
Waiting for Update Media GMG3G_LINUX_15.28033 PLATFORM VER. XXXXXXXX copying 0/100 GM Chevrolet Colorado Navigation GPS Nav System Error