One of the first questions , for more info, is does the vehicle start and run? Is their power to anything such as headlights or radio when the key is in the full on position, wether it starts or not? Or is it the dash only vs dash and vehicle? That kind of thing.

Did this happen over night? Or after driven and parked? Maybe check that its in park and work the emergency brake a little. This is out there but maybe even “rock” the jeep forward and backwards just a little to make sure there wasn’t a “parking” glitch in sensor some where.

How old is the battery itself? Have u tried a jump start? Grabbing at straws before actual electrical more complicated stuff.

Good luck . Keep us posted. Others will being giving advise soon. Also use search for those already having posted similar...