Quote Originally Posted by 9thgensifamily View Post
I know original post was fixed, but there's also loose/corroded battery terminals can cause problems. Had this on my Civic (loose) and a Jeep (corroded and loose). This is easy to temporarily fix, clean up terminals, and I've peened the battery terminal more than once to mushroom the top so the terminal would stay tight.
I'm not sure if new cars still have brushed starter motors, but I've had luck on older vehicles hitting the starter with a chunk of wood to unstick a seized brush.

These are my first 2 checks, followed by metering battery (next is load test, but that's 10 miles in the wrong direction for me).

Past that, I had a Nissan frontier that had issues for what seems like several months. I found there's a rubber nipple on the clutch peddle that makes a micro switch for the starting circuit. Rubber deteriorated and didn't make the switch at times.
I don't think the new cars have a brushed starter motor like older cars did. I had a '01 civic in high school that had a bad starter motor and for a few weeks I would have to start it up with a rod/long chunk of wood like you mentioned until eventually my dad had the starter motor replaced.