2024 sportage won't start with push button unless jumped. Starting with remote start works fine
ICE, HEV or PHEV version? Since it starts w/"remote" (phone app or button on the fob?), it sounds like its not a battery/charging issue? But if its a problem w/the button itself, how does it start w/jump? Sounds like a key fob issue, as dave suggests. (Bad fob battery? Not paired w/car?)
