2001 E53 3.0L GM3 issues

[Ketoe]

I have a 2001 X5 that I have had more than a few adventures with (not while driving) and finally
running good for a while now,but I am having issues with the GM3 once the car is started:
- Warning flashers come on
- Door lock button doesn't work
- Dome/door lights stay on
- Steering is heavy (probably not related)
Issues I am having (other than having never done this before) is when using NCS Expert, I enter the VIN, but it is asking for the GM/SA/VN.
No clue where to find those numbers.
Also, I am using a "INPA K+ CAN Ediabas", with the switch for 7/8 but it seems like it is not connecting with the program.
I must be doing something wrong, just not sure what. Normally these things don't bother me but since I am heading overseas
I want to sell it so the new owners don't have to deal with it.