So first post on here after trying to find help in all the wrong places.

So i have a H3 with a BCM that is on the way out (doors unlocking whilst driving, windows not working at times, Central locking not working), I've gotten a second hand one through a wrecker (apparently ones for Australian cars aren't being made anymore). I've attempted to find someone to program it for me, but well it's Australia and GM cars down here go without any support.

So I've gotten a reader that will do Tech2Win and pass through, I have gotten onto the ACDelco website, but I'm now lost. Do I need the SPS2 or SPS to program a 2008 Hummer, as I ended up rolling the dice and trying the SPS2, but I'm thinking I messed up there.

Also I may have messed up the mileage when I plugged the new BCM in as it has jumped up 100000km and well I'm hoping thats easy to fix.

I'm sorry that these are all things that probably been answered before, but well I ripping my hair out trying to get my daily driver back on the road.