Tire Pressure light on my car won't turn off!

Apparently you do not have the owners manual for your Versa or you would have allready solved this simple “problem” yourself.

From the owners manual for my wifes 09 Kia: Inflate any low tires to the correct pressure and drive a few miles. The system will reset itself & the light on the dash will turn off. With the Kia driving 9 miles did the trick.

If your Versa uses the same very user friendly system thats all you need to do.
put some air (nitrogen is a waste of money) in the tires, drive a few miles & see what it does.