At what millage if at all, does a 2005 Prius need it’s timing belt replaced. Neither the manual or my Hanes book list this as a maintenance item.
Are you sure it has a timing belt???
Gates doesn’t list a belt so I’ll bet it has a chain.
If it’s not listed, then it probably has a chain instead of a belt.
If it had a timing belt, the change intervals would only be in months (so many months equals so many years); not in miles.