NHTSA Complaint #11717937 — 2020 KIA SORENTO

I bought a Kia 2020 from Long Lewis 3 days after i got it the check engine light come on, I called and told them, then around the 5th day black smut started covering the back of the suv, and i was smelling a burnt oi; and antifreeze smell, took it to a shop and they pulled the codes and one code was P045600 and another was P074100 then airbag codes, not even a month it started jerking they told me to bring it in so i did, he said they cleared the codes and was gonna fixed the evap, i asked about the torch converter and he said that must've been a code from the history but it wasn't, it did have a history of the code though, and i asked about the black smut on back of the vehicle he said nothing they can do about that and said fixing the evap may fix it, but sometimes it smells like it's on fire, and jerks