Hi there Welcome to the forums :) Congrats on the purchase of rukus sure you'll love it Question 1) From the dealership I only ever received 2 smart keys not physical keys as such, but if you havent worked it out yet the portion of the smart key that you can attach to your key chain actually comes out :) if you're looking at the toyota badge on your smart key on the right hand side there is a rubber portion with what looks like a key on it, if you push down on that while pulling out the rubber portion on the bottom of the smart key a physical one will come out :) Question 2) My car is also a 2010 build 1 and I've recently had to replace the batteries as the smart handles werent working, the hardest part of replacing it will be sourcing the battery but actually replacing it is easy, using the above process to take out the key you'll note that at the end of it is a flat portion and where you've taken out the key there is one hole where the key came from and a slight indent to the side of it, place the flat portion of the actual key into that indent and twist :) Question 3) Given i drive my car every day i would suggest every 3-4 years, but luckily batteries are fairly cheap (Ebay) Goodluck!