Mechanical and Transponder Keys

Lost Coast Lock & Key can duplicate, generate, and program new mechanical and transponder keys for your vehicle.

Transponder Keys

Transponder keys are automotive keys equipped with a microchip that communicates with a vehicle’s security system. When inserted into the ignition, the chip sends a unique signal to the car’s onboard computer. If the signal matches the programmed code, the engine starts—otherwise, the vehicle remains immobilized

Traditional Mechanical Keys

A traditional mechanical automotive key is a basic metal key that fits into a vehicle’s ignition and door locks, requiring manual turning to unlock or start the car. Unlike modern keys with electronic components, mechanical keys rely solely on physical cuts and grooves that match the lock’s internal tumblers.

Differences Between Transponder Keys and Traditional Mechanical Keys

Automotive keys have evolved significantly over the years, with transponder keys replacing traditional mechanical keys in most modern vehicles. While both types serve the essential function of unlocking and starting a car, their security features, technology, and usability differ greatly.

Mechanical Keys: These basic metal keys rely on physical grooves that match a lock’s internal tumblers. They can be easily duplicated at any hardware store and are vulnerable to theft techniques like hot-wiring and lock-picking.
Transponder Keys: Equipped with an embedded microchip, transponder keys communicate with the car’s electronic control unit (ECU). The vehicle will only start if the chip’s unique signal matches the programmed code, preventing unauthorized access and theft.

While mechanical keys are simple and inexpensive, transponder keys provide superior security and reliability, making them the standard for modern vehicles.

Lost Coast Lock & Key