2013 Sonata Keyless Entry acting strange

Daughter parks the car, leaves keys in ignition. Car locks all doors totally uncommanded. Drive 45 miles w spare key, that keyless entry didn't work. Had to use key to get in.

Now the strange part - main key's keyless entry - unlock doesn't work, but car locks itself uncommanded. Open trunk button won't work but occasionally. Door open button locks doors and sounds horn occasionally. Can get the keyless entry to only work occasionally and the unlock locks the car, etc. Goofy

All the buttons are acting weird and thinking it needs a power reset of some sort.

Any ideas or input would be appreciated. Thanks. Prof

Car locks actuate uncommanded. Horn sounds uncommanded.

I can't trust to leave keys in car without leaving a door open. It's like the fob has a button stuck.

Prof