Although Kohler ceramic valve cartridges are available in hot (which means the water turns off by turning the handle clockwise) and cold (the water turns off counterclockwise), the only difference between the two is the way the valves turn. However, if you mistakenly have a “hot” when you need a “cold,” the valves can be reversed.
On the top of the valve, at the base of the splined stem, there is a clip. The clip can be removed either with your fingers or needle-nose pliers. Do not lose the clip as you will need to reinstall it later.
Once the clip is removed, lift the silver disk underneath and turn it 90 degrees. Then slide the disk back down and reinstall the clip. This will allow the valve to turn in the other direction.