04 silverado 557gw problems, Superchips

I am installing an autostart using the Dei 557GW databus module on a 04 Silverado HD with the 6.0 liter gas engine equiped with a superchips reprogramer.     Everything works, the locks, door trigger, and remote start.. the problem is when i remote start the truck, the engine light will turn on and the truck will not shift out of 2nd gear. If i kill it with the brake and start with the key, it works perfectly. I have installed many of these and they all work just fine, i tested the obd II system with the truck autostarted and it gives me a transmission line pressure error. I think it is interfering with the superchip.. has anyone had these problems before? Please help asap. thanks

I assumed you ment 457gw as your module also.