Car won't start

Check all Battery terminals & terminal wires, connections to starter and frame grounds and check them for if tight and corrosion may have to peel some of the wire insulation back some. Check starter. Check grounds to frame from engine.

Make sure u have minimum 12.4 vdc on the battery, check for loose or corroded battery cables. If everything checks out good, check voltage signal to small wire on starter solenoid as you try to start it. If there's voltage and still no start, replace starter

Had the same problem. Ended up switching the 50 amp fuse marked starter (under the hood) with the one next to it (same 50 amp fuse) and it solved the problem. Switched them back and car still started. Go figure.

I had this problem and ended up with a new ignition switch and starter. Finally ended up replacing the positive cable that goes to the starter and fuse box as well as the wire that goes from the fusible link to the starter switch and checked all ground wires and this fixed my problem. Car starts and runs fine now.

I have a 2018 Santa Fe and it will spontaneously not start. It will turn over, all lights, fan, radio turns on but doesn’t start. If I let the car be for about an hour without doing anything to it, it will start up... dealers don’t know the issue and say they can’t diagnose it because every time I bring my ‘dead’ car to them it starts up no problem. Any one else have this issue and found the cause?

Did u try starting it n numeral that's made mine start then I notice I had left my interior light on guess it just wasn't enough power to start n park who knows but it worked