Hello,
I lost the key of my Baleno, which also has a key loaded with computer chip and has a unique code, the security system is called Immobilizer. I then contacted Suzuki Polad on M.A. Jinnah Road, Karachi. They told me that they will charge Rs. 7500 to have a new key build and programmed in accordance with the code of my car. Balenos have a electronic central control unit called ECM, Eletronic Control Module, which has complicated computer circuitry and they will have to extract the code of my car by calling Suzuki Engineers with a hand held computer.
I agreed and they did arrange the key got grooves carved on it for my car and called the engineers. The hooked the small computer into the wiring of my car underneath the dashboard and extracted the code and then, it took only 1 minute to code the key with the code of my car.
This is how I got the key of my Baleno for Rs. 7500.
You may contact any Suzuki dealer/workshop for carving and coding the keys of you vehicle.