My situation was I lost all my keys to my little Toyota Corolla which had the immobilizer inside the key. I rang the Toyota dealership and they said it would cost me 3K to change all the locks and put in a new immobilizer. I rang Door 2 Door Locksmith & Security and was blown away by how knowledgeable they were with all this electronic immobilizer key stuff. They were able to come out onsite open up my car and create a working immobilizer key. It works the exact same as the original ones I lost and they didn’t have to replace any locks or put in any new immobilizer system. These guys were a lifesaver! Better than great service, Would highly recommend to anyone. Fantastic!