Got to fill it up, I'd stick with Mopar and get full strength, buy Distilled water only! Mix it before you dump it in, 50/50 coolant/distilled water. I believe yours is HOAT? Which is a clone of zerex g-05, but part of the benefit of mopar is color that tells you if it's bad or good, so I'd spend a couple more bucks and get Mopar. Once full, see where the leaks are and look for oil where you take the Radiator cap off when cold. Same with oil, you should change oil and double check you don't have coolant in there. It is very rare that this wouldn't have caused some sweet smell.
You don't want to mix, and 2012 was right on the line, HOAT or OAT coolant, you need to verify how it came from factory. I could type two pages of what my latest friend went through because he mixed coolants. They aren't compatible.