Strange electrical problems

[BHMB]

4 door 2011 Hyundai genesis.

So I was driving and the screen and music turned off suddenly, then I turned off car and it wouldn’t start, I had to put key fob in the key slot to start it. So now my key fob won’t unlock the car, the car is like dead until fob is put in, seats won’t move , lights inside won’t work, gas cap, trunk and so on. Until the fob is inserted then it all works, except for the screen and music while I drive those are dead still. One day I tried checking the battery and boom everything worked. Then hours later back to how it’s been. Anybody know if the battery’s get bad and these cars freak out or what do you all think? Appreciate the help.

 

[joegr]

Are there fuses on the positive battery terminal on your 2011?

 

[BHMB]

Are there fuses on the positive battery terminal on your 2011?

Yea there was, I didn’t check it tho..might have looked to see if noticeably blown but that’s it

 

[joegr]

Yea there was, I didn’t check it tho..might have looked to see if noticeably blown but that’s it

I don't think that you will find any blown, but I think that there is probably a tiny crack in one of them.
You can find it with a voltmeter when the car is not operating correctly.

 

[BHMB]

I don't think that you will find any blown, but I think that there is probably a tiny crack in one of them.
You can find it with a voltmeter when the car is not operating correctly.

Oh ok ok I’ll give that a go! Thanks a lot I’ll post if it made a difference

 

[BHMB]

Oh ok ok I’ll give that a go! Thanks a lot I’ll post if it made a difference

Yea didn’t work..not sure what it could be