Hello and welcome to Just Answer!
Fault code P0562 = LOW BATTERY VOLTAGE
P0841 = LR PRESSURE SWITCH SENSE CIRCUIT
P1684-BATTERY WAS DISCONNECTED
P1776-SOLENOID SWITCH VALVE LATCHED IN LR POSITION
It sounds like you are going to need a transmission solenoid pack. I have replaced numerous packs for this condition.
There is a TSB out that pertains to this condition and you can click here to view the info.
The other battery codes I would not be concerned about right now, they could have set with a battery disconnect or dead battery.
I hope this helps, let me know!