Correct. Many here at the BB are former Catholics (as I am) and an example of "traditional teachings" would be the Marian (the mother of Jesus) Dogma:
1.) She is the mother of God
2.) She is a perpetual virgin.
3.) She was conceived without Original Sin.
4.) She was assumed into heaven.
http://www.catholicnewsagency.com/resources/mary/general-information/the-four-marian-dogmas/
There is a fifth Marian Dogma in the works. The pope must proclaim it ex cathedra before it is binding upon all Catholics.
This one is quite offensive to non-Roman Catholics but is an example of how diverted from the scripture tradition may become.
While it is not officially a Roman Catholic dogma it is unofficially approved and even promoted (or should it be said that it is allowed) by some of the RCC hierarchy. It is controversial among some Catholic theologians and an embarrassment to some of the laity, if you read the URL and explanation you will see why.
5.) She is the CoRedemptrix, Mediatrix and Advocatrix.
http://www.catholicplanet.com/CMA/
This is an example of the OP (IMO) and not an object of discussion.
That would have to come in another BB thread post preferably Other Christian Denominations.
HankD
This is why the Church of Rome has to have verbal/oral tradition equally authoratative as the Bible, as most of their doctrines and beliefs cannot be found just in the Bible itself!