72 Dart Swinger 3.6L Pentastar +T5

G'day friends
I'm still looking in often enough with my Pentastar engine swap on hold until I see some success reported by someone somewhere.

Our thread pilot myduster360 has been very quiet. Where are you brother ?

I have a simple but long question, and it'd be great if any of you could answer with a 'known' remedy. It is as follows …

If I transplant from my 2015 Jeep Grand Cherokee, it's Pentastar 3.6, the trans, the exhaust, the cooling system, the steering, the instrumentation, the fuel tank, etc etc and of course the complete wiring loom into my '37 Dodge … then how would I STOP something simple for example like the warning light from displaying on the dash advising that my rear hatch is not properly closed ?

Of course this is but one such issue that is likely to arise.

I hope someone actually knows. FINGERS ARE CROSSED in anticipation of a correct piece of info.