Search for "overhead door holder". You may have to modify a unit for your 45 degree requirement. A good commercial hardware supplier can help you.

Is this a door going to the inside of your house or outside? Can you just change the swing so that it swings out of the garage instead of in?

The simplest thing is a chain at the top of the door.

We use hinge pins that are adjustable. One of my interior doors is set to about 60 degrees. I could set it less than that. I bought them from a big box store.

I bought a hinge pin door stop from and the looked at YouTube videos on how to install it. The videos make it look like there is only a few inches of adjustment. I don’t see how it could stop the door from swinging more than 45 degrees. It looks like it would only control a few degrees of movement at the end of the door’s end of travel.

" It looks like it would only control a few degrees of movement at the end of the door’s end of travel. "

Looks like is not how it always is in reality. I woiuld try it as it will be the cheapest and easist solution.

The top and bottom hinges on the door aee different than the examples in the instruction videos.

The middle hinge looks like their examples, but hitting it with a screw driver and metal hammer isn’t working. I will end up smashing my fingers if the slippery metal hammer slips.

I may need to get a wide rubber mallet.

Sigrid nailed it - you need a chain at the top of the door. Screw one end to the door frame, and put a strong hook on the door, so you can simply unhook the chain if you need to open the door all the way.

Sometimes the easiest solution is the best one.

A chain that stops the door abruptly will be jarring and may cause damage and rip out if someone opens the door not expecting it to hooked up to a chain.

If it is attached with a 1/4'' or 3/8'' lag bolt through the door frame, and a similar sized hook that goes through the door, the chain will break before further damage is done. They sell kits made for exactly that purpose that include a spring. The chain is attached to both ends of the spring with some slack, so that the door does not abruptly stop at the end of the chain, but it is limited by the amount of slack along the spring.

And you can feed the chain through clear rubber tubing to prevent marring the door finish.

"jaxo: "A chain that stops the door abruptly will be jarring and may cause damage and rip out if someone opens the door not expecting it to hooked up to a chain."

I've seen door-stop chain arrangements that include a spring/shock mechanism that helps prevent the scenario you describe.

It seems to me that opening the door from the outside and smashing into the car would be quite jarring as well.

Who uses this door? Is it family, who understand the issue, or random visitors?

The ones I bought are called Hinge Pin Door Stop. The door stop part is adjustable. Mine is specifically everbilt part number 1005 659 057. You remove the hinge pin from hinge, insert hinge pin thru the doorstop hinge pin, then back into the hinge. Adjust the doorstop part by rotating the threaded stopper. Good luck!

Does anyone recognize the type of hinge I posted in the picture above? It looks different than standard hinges on all my other doors.
Will the standard hinge pin door stops work on it and is there a different procedure to remove the pin other than just tapping on it from the bottom like other hinges? It looks like it may be locked in place.

@jaxo

https://www.google.com/search?sca_esv=20b9b0c95b5cc562&sxsrf=APpeQnutndBjsYbUY8Uy-mfsaEC5ZVOB-g:1789763966022&q=Self+closing+hinges+garage+door&sa=X&ved=2ahUKEwimnrSr_viWAxUbLEQIHVjTHnIQ1QJ6BAhrEAE

Ok, it looks like this. https://www.homedepot.com/p/Onward-3-1-2-in-x-3-1-2-in-Brass-Self-Closing-Full-Mortise-Spring-Hinge-52821BR/202206108

Does this affect how the hinge pin door stops would work?

Does this affect how the hinge pin door stops would work?

Those are a poor choice for this application. They are intended for light weight interior doors.