2006 GT. Had battery out and been doing upgrades and cosmetics for about 6 months. Installed new battery and cranked right up. However ABS, Engine light, check brakes and traction control all lite up. Removed batter terminal for 30 minutes, no help. Traction control will not engage. On/Off stays off. Went to 3 places for code reading, nothing showing. Is there some sequence I can do to reset. My Tahoe you have to left signal, blow horn twice and turn headlights on/Off 3 times and clears...

Dash Lights problem.