[ToySub1946]

Now that I've seen and heard the latest video, way more telling than the first video done poorly in the dark:

Looking at how dirty the car is under hood and in wheel wheels, I'd say most likely the real rattle is coming from the engine undercover or skid plate (aluminum) hitting part of the exhaust system. This happens after you run over things with the front of car...or if debris is within the skid plate.

This happened to me after I ran over a large rock on a remote dirt road. First I removed skid plate and straightened it, then later replaced the part (because it was actually torn open)...About $136. online. I have not done anything about the slight dent in my oil pan which is not bad enough to have damaged the oil pickup.

Back in the day, in cold country, with snow and ice, we wait till spring to deal with these things. First video appears there is possibly snow on undercarriage of the car. Second video shows dirt and mud on areas of the car.

Hopefully this trip to the Stealership, you'll get a tech who'll take the time to properly diagnose the problem. Unfortunately, If I'm correct, it ain't The manufacturer's fault, driver fault instead. We'll see...

For a tech to properly diagnose this problem... to actually hear it....car should be on an alignment type lift, running, with suspension compressed as it would be driving down the road. Heat shields on exhaust parts near engine can also get bent (they are extremely thin) and make noise as well. Best to listen for these noises after aluminum skid plate is removed...if it's already been determined that aluminum against these heat shields is not the sole noise problem.

Note: Attached image came from Google Images...