After asking this question, I discovered the answer:
Unfortunately, this is an incredibly clunky/clumsy system. It appears to list all product recalls going back to 1986! While one can browse by year and product category, and search for a specific recall (if you know about it), the ‘Transport’ category alone has 3,980 entries! Fortunately you can break this down further into (e.g.) 2,419 cars, 179 Holden, 15 Alfa Romeo (or 207 ‘other brands’*) recalls - but then in the middle of the list of brands is another sub-heading for ‘Parts and accessories’! Who would have thought to find that there, and why aren’t they listed under each affected car brand?
*Which includes “Toyota Motor Corporation Australia Limited - Lexus…”, just to confuse the reader. Cars also apparently include trucks.
So I repeat my call upon @BrendanMays and Choice to be seeking improvements on this current user-unfriendly melange.