Olazabal has not attempted to issue a blanket ban over the use of social networking sites, but reminded his team to bear in mind how their comments can be interpreted.
"I'm not banning any member of the team," Olazabal said at Medinah, where Europe will attempt to retain the trophy and make it five wins in the last six contests.
"What I've said to them is that they have to be careful on what they say, how they say it and when they say it. I'm sure that any comments that are made on Twitter are not intended in a bad way, but if you take the sentence out of context, it might look completely different.
"In that regard, the boys need to be a little bit cautious about it."
Two years ago at Celtic Manor, there was some confusion over whether captain Colin Montgomerie had issued a ban, with the Scot then clarifying that he had asked players that "respect is shown for what is said within the team room."
Montgomerie added at the time: "It's not a ban because if somebody does it how can you punish someone for it?"