Alot of problems with my X5 yesterday

[DINANM3]

Ok so i unlock my X5 and go to get in and notice my hazard lights came on by themselves. I go to shut them off using the button and it will not shut off. I pushed the damn thing like 100 times. It just wouldnt shut off. So I just decide to leave work and drive home with the hazards on. As im putting it in drive i notice my nav screen is just black. I try to turn it on pressing buttons and nothing. So im tired and say F#%k it and start driving home. A mile down the road the selfleveling suspension inactive comes on and i can feel the suspension going up and it didnt feel as stable. So now im like wtf what else. Im halfway home and the tailgate opens by itself and the interior lights come on.

So now im just puzzled. I just couldnt figure out what was going on. Then my instrument cluster lights go out. So now i pick up the phone and call my wife to meet me at the dealer and i was going to drive it strait there and leave the keys in the night drop box. So im almost at the dealer and suddenly the hazzards stop flashing the nav and instrument cluster lights go back on and my suspension starts to lower itself in normal position again and the self level message goes away and the interior lights shut off. I just couldnt believe it. So I pull over and close the tailgate and its fine. So I shut the X off and turn it back on and it wont start so i look at the nav screen and its asking for a 4 digit code. I put in 0000 and it starts and everything is back to normal. SO I start driving again and everything is fine. So I get to the dealer shut it off turn it on a few times drive it around the lot and everything is perfect like it never happened so i decide to take it home. That was yesterday. I drove it all day today and not one problem.

Can someone expalin to me what the hell happened to my X5 yesterday. I have no explaination. It was crazy. I dought this has even happened to anyone here before. at first i though maybe it blew a fuse but now everything works again. This shit is crazy.