Originally Posted by Timberline
Make sure you gas cap tight. Make it click several times when tightening it esspecially after filling it up.
I did do that. I pulled over after talking with Onstar earlier and checked it. All was tight and fine. I then went to the gas station and filled her up to see if that would reset it. At the time it popped on, I had a half a tank. it is odd that it came on when made that hard tune while gunning it earlier.
Just drove it to the store and it is still on.....ugh I did get on it pretty hard to make sure performance was there and all was fine. Always something...lol ugh