2012 Honda Civic EX: resetting TPMS

I've only had the car for a few months. I know it may be the cold weather, but today it was about 50 degrees F. The light should have gone off. I contacted the dealership and they said to look for some button located near my left knee?

Look in the owners manual, and if you are one of those who has tossed the manual, then look online for one