2001 isuzu transmission problem

2001 isuzu rodeo V6 automatic
Problem:all problems occured at once, 2nd to 3rd hard shift,abs light on, no cruise control,no 4wd, no winter button operation and no range selector lights on dash.
What i have done so far: Changed filter and trans fluid, cleaned range sensor switch, and checked alternator .

Help
Thanks

It could be the battery, or a bad battery ground or the alt is messed up. Bad alts look good at idle, to properly check it, have it load tested. If you plan to keep the truck for a couple of years it may be a good idea to find a used alt and starter on ebay or hit up a pick and pull (I have one of both sitting in my garage).