Hi guys, this is my first Reddit post as I normally do just fine reading advice but I’ve found little to no situations like mine (understandably).

So I have a 2003 Chevrolet Malibu that was bought new in 2003, driven only about 33,000 miles and then my family moved to the city and haven’t used it for about 15ish years. Insurance was expensive and it was cheaper to move around with transit. It’s been in the underground parking for the 15 years and was wondering how I would go about getting a mechanic to look at it or any advice whatsoever. It won’t start with a replaced battery anymore it just makes a noise as if it’s about to start and then it doesn’t, and the windows and lights don’t work with the buttons either. I don’t really know much about cars so any advice appreciated!