I had one key (that was master key though). I got a second one cut & programmed at the dealer for $50 (2002 XLE)
FYI different dealers quoted different rates. Some as high as 150! Cutting the key is same as any other key. I saw the dealer program it. It was set of steps... like hit the break 5 times etc... No equipment needed.
Your 2002 is different than a Gen 6. MrSo0h0o has a 2004 and didnt need to have his key programmed cuz it doesnt have a transponder chip and he programmed the key himself by following the steps.
He purchased a switchblade key and had the keyfob programmed. Its different for a Gen 6...more security features
Before I really take any action to begin with, should I buy a key on ebay and go to a dealership and have them program and cut my key or should I just have everything done at the dealership? Service and labor is +200...
Some dealers wont touch an aftermarket key. You would need to talk to parts department. I went to a couple and they had no problem. Go to different dealerships to find out how much they charge. I was quoted $100 at one dealership. I've asked some people who bought the same key and they were charged $50, some $75 and some even got it done for free.
To program key for ignition, dealership gets your VIN number for your car. From there, they enter it into their computer program which will give a code. They enter this code into the machine that cuts the key so that there is no error. This is not the same where a locksmith takes your key, puts it on one side and takes the blank key and duplicates it.
Once dealer has key cut, they insert into ignition and plugs their computer into the car and programs from there. Its your choice whether to get overcharged for a key or take the risk of getting an aftermarket key and have it programmed.
For reference, my aftermarket switchblade key was $75. To get it cut and programmed was $100. Thats $175. Its almost the same price as from dealership.