✳Topic

Transponders

The chip inside the key, and the immobiliser it has to answer.

3 articles

A technician working the door lock of a car with a hand tool

Cars & VansAug 29, 2026

All keys lost: what a locksmith can do at the vehicle

No spare, no key, and the car is in a parking lot. How a replacement is cut and paired on site, what the dealership does differently, and what the security gateway changed.

LAK Locksmith Team4 min read

Two transponder keys on a dark surface — a blade and a chip inside each

Cars & VansAug 22, 2026

How transponder keys work — and why a cut key won't start the car

The chip in your key answers a challenge from the car every single time you start it. A plain explanation of the handshake, and what it means when it fails.

LAK Locksmith Team3 min read

A black proximity car key with no visible metal blade

Cars & VansAug 8, 2026

Programming a proximity key: what the process involves

Push-to-start keys are paired to the car rather than cut for it. What pairing means, why the vehicle has to be present, and what changed with security gateways.

LAK Locksmith Team3 min read

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