Chip Key Replacement: How Transponder Keys Work

Most cars built in the last two decades use a transponder, or chip, key. A plain metal copy will turn the lock, but the engine will not start. Here is why, and what replacement involves.

How chip keys work

A small chip in the key head sends a code to the car's immobiliser when you turn the ignition. If the car does not recognise the code, it will not start. This makes chip keys much harder to bypass than traditional keys.

How replacement works

1. The locksmith confirms your vehicle details and proof of ownership.
2. A new key is cut to match your locks.
3. The chip is programmed to your car's immobiliser.
4. Both doors and ignition are tested with you.

Get a spare before you need it

Adding a spare key while you still have a working one is usually simpler and cheaper than replacing your only key.

Conclusion

Call with your make, model and year for a quote on chip key replacement at your location.