Re: Will this vehicle tow?
Hi Julie and welcome to the RVUSA Forum. I see you posted this question up twice, once in Beginning RVing and another in Talkback. No need to do this in the future - we look at all the topics pretty much every day and this way you won't get too many answers to the same question(s).
The Kia Sorento will tow what the manufacturer says it will tow in reasonable safety. That said, remember the 3500 pounds is the TOTAL weight. That includes the weight of the trailer, water (at 8 pounds per gallon) propane, food, clothes, etc. Plus, don't forget what you are loading up in the tow vehicle - 2 adults, 2 kids, toys, clothes, food, etc. You get my drift. It's easy to get to an overload condition in a hurry if you are not careful.
You didn't put in a location, so I don't know where you will be camping. If you are in a warm location, a pop-up tent trailer might be the way to start out. They are light and small enough that you would have a hard time overloading one. If you are in a colder locale, you might want a smaller hard wall trailer. Whichever you choose, check the manufacturer's website for the gross trailer weight and tongue weight and pick something that your Sorento can tow comfortably.
Hope this helps some and hasn't confused you more. Welcome to the wonderful world of RVing.