Doc, get it fixed now. The winter is hell on electrrical systems, cold starting, defrost, etc., etc. You will get stuck when you least want or expect it to happen. At least do the brushes/regulator. Takes about 10-15 minutes.
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of postponing the inevitable.