Electrical problems!

[2010Avenger]

I have a 2010 dodge avenger sxt and its mileage is below 112,000. About 2 months ago my car's rear right turn signal stopped working for some reason. I checked and replaced the bulb, checked my ground connection and my battery cables but the signal still wouldn't work. The light itself would work if I do things like put on my hazzard just not when I signal. A month after that my electrical problems persists with both rear turn signals not working and then I couldn't roll up my windows. I opened the door panel and checked the fuses, cleaned dirt and debris, checked all my fuses in my fuse box (even replaced a few) but no luck. Presently the problem is only getting worse, now my front turn signals won't work and my car keeps saying change oil even though I did with the filter. I'm able to move my windows temporarily if I leave my ac on but this trick is unreliable. Will someone please tell me what this could be and where I should search??

[Stealthee]

When you change your oil you need to reset the oil life monitor manually. The car doesn't know it has fresh oil on its own.

I can't say for certain but I would almost bet your turn signals are controlled by your BCM and your issues may all lie there.