
On-Site Key Fob and Transponder Programming — How It Works
A transponder key contains a small microchip in the head of the blade. When you insert the key, the car's immobilizer antenna reads the chip's unique code. If the codes do not match — because the key is new, was purchased as an uncut blank, or has lost its programming — the engine will crank but refuse to start. Similarly, a remote key fob uses a frequency-hopping radio signal that must be enrolled in your vehicle's body control module. Our technicians use professional-grade programming equipment to read your vehicle's existing data, clone or generate the correct code, and write it to your new key or fob, all without removing any interior panels or risking damage to your car's electronics.
Beyond basic programming, our team handles proximity smart keys, push-to-start fobs, switchblade flip keys, and high-security laser-cut transponder keys for a broad range of vehicles including Ford, Toyota, Honda, Chevrolet, BMW, Mercedes-Benz, Hyundai, Kia, and many others. Because we are fully mobile, we come to your home, your workplace, or wherever your vehicle is located in the San Rafael area. There is no need to arrange a tow or carve time out of your schedule to visit a shop.

