All of my bathroom faucets are becoming stiff and hard to turn. One of them also now won't fully turn off on the cold side. One set is in a guest bathroom and is not used much but the other is in regular use. Not sure if there is some debris inside or if the cartridge has failed.

Just wondering if they can be removed and lubricated or do they need replacement.

This is the product - https://www.us.kohler.com/webassets/..._Kohler_en.pdf