Hey Scotty, we have a 2007 Toyota Yaris. Recently, I have noticed low coolant level. There doesn't seem to be any leaks or drops on the ground. Do coolant level generally goes down over time? or Is this going to be a serious problem with coolant going through the engine?

if you mean a few cups here and there over they years, that's normal

But the reservoir was way below the minimum line and the level in the radiator was also fairly low