Hmmm. Could be your battery was run down, during the mechanical repairs. and as a result the charge management system wasnt fully powering all required componebts. While they all powered on, they may not have done so properly- (like a module doesnt fully power on and handshake with other modules in the allocated period, a radio starts before all amps are powered, etc etc- and you were seeing issues. Once you got fully charged, and all modules reset and have all the power they needed, proper operation returned.


These cars have a layer of 'smarts' that manage battery power, that can confuse the old concepts around charge, power, start up, etc. Or a layer of stupid....


My guess....