Bush made the remark during an end-of-year news conference on Thursday.
"I am confident that preliminary inquiry conducted by the AG and the IG at the CIA, coupled with the oversight provided by the Congress will end up enabling us all to find out what exactly happened. And therefore I am going to reserve judgment until I find out the full facts."
The destruction of the tapes in late 2005, which allegedly demonstrated harsh interrogation treatment of two terrorism suspects, is being investigated by the Justice Department, the CIA itself and by several congressional panels.
Bush stuck to the White House line that he personally did not know about either the existence of the tapes or their destruction until he was briefed earlier this month by CIA Director Michael Hayden.
Congressional Democrats have condemned the destruction of the tapes.