This key works on Cadillac Catera cars.
13,33,40,T5 Type transponder.
A local locksmith can program, and cut this key for you. Ask if they have a RW2, RW3, RW4 or Easy Clone machine before you go over to them. Any one of these 4 machines could handle this programming. The transponder in this key will tell the computer to start the motor in your car.
If you loose all your keys for this car, It will cost you well over $125.00 to have one made & programmed. Get your duplicates now before its to late.

This key is aftermarket, and not a factory origional. Just like the local hardware store would use
if they stocked them.