Yes, rabbits need yearly checkups. It depends on what vet you go to, but normally they will check the rabbit all over, their weight, their teeth (not the molars), etc. If you call your vet they can tell you what to expect.
How old is Pancho? I think that a rabbit should get bloodwork every year just to make sure they are healthy (but I understand why that would not be possible because it is expensive), but if your rabbit is over 5 years it will need bloodwork for sure. Bloodwork costs about $120 at my vet but if the vet cannot get a vein because the rabbit is squirmy, it is another $50 for anesthesia.