car won’t start unless i open the hood.
radio flickers on and off.
traction control light comes on and then if i make a quick stop for gas or something it won’t start again.
If you’re able, an easy thing to check before calling a mechanic is checking the battery connections. Bad connections caused by looseness or corrosion can do crazy things. I had a starting problem once, called AAA, and the tow truck driver disconnected the battery, cleaned them, reconnected, and it started like a champ. I felt like a goof but learned a lesson.
I’m not much of a mechanic, but that’s the first thing I’d do. If that doesn’t work, then I’d listen to what other posters put up here and probably end up getting a mechanic to check it out.