Where is the door sensor?

Many of them now days are in the door latch.

If it involves taking off the panel, I know how to do that due to a speaker problem from before. I'm only looking for suggestions about the door sensor. Thanks!

Thanks Bob Any suggestions on how to remove /clean the latch in my particular model? (2012 Kia Optima)

Perhaps stop by your local dealership and discuss with the parts department on where exactly the sensor is, but my guess it is integrated into the door latch. The part inside the door.

I have that same problem in my 2013 need to know where are the senser

You likely have a dent in your door frame from closing the seat belt in your door multiple times. You see the latch on your frame? Theres a rubber piece on your actual door on that side that has to be pressed against when closing the door, if it isn’t pressed fully, your car will say the door is open and your car alarm might go off for no reason but some wind, and drain your battery and possibly leave you deserted. Have you noticed if u sit in your car while it is saying the door is open but u pull the door in some it goes off?

I have the same problem with my 2011 and door shuts all the way nothing is bent. Sounds like Kia needs to do a recall to me.

Did you guys get it fixed??