The sensors do not need to be replaced. You will need to follow the procedure in the owner's manual for the computer to relearn which sensor is at which location so the monitoring system reports it correctly.
Well here is the thing, i got a nail awhile back and ran up to walmart to have the tire patched.(only place open) they claim that they are not allowed to re pack sensors and would have to replace it(they didnt have mine anyway). just wound up plugging the tire