The battery warranty in California is 10 years. Can one buy in California and registar in another state and still get the 10 year protection.....
It seems to depend on what state you register it in. The following is a quote from the 2005 Prius warranty booklet from the section titled California Emission Control Warranty which includes the 10yr/150,000 mile battery warranty (bold added) ---------- "Vehicles equipped with a California Certified Emission Control System that are registered and operated in California or any state that adopts California emission warranty provisions are covered by this warranty. Currently, Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, New York, Rhode Island and Vermont are the only other states to which this warranty applies." --------- I would guess that if you buy in any of the listed states the warranty provisions would be the same (since they have apparently adopted the California emission warranty provisions) but somebody needs to look at what the warranty actually says in those states.