I have had a slow leak on one of my tires since I bought my car back in October 2018. Until yesterday/this morning the warning light never came on and my tire was flat to the ground. This happened one time before as well. I am not exactly sure what to do about this. I think I have a faulty sensor/valve stem. I don't usually have any extra time to leave my car at a dealership to fix it. I am sure a new stem and sensor is way out of my budget (especially from a dealer). So what is the general consensus? Dealership?
Just some added info, I bought my car new from a dealer almost 80 miles from where I live. It had 28 miles on it. It is a 2018 SE with aluminum 14" rims.