Proton Key Replacement

Proton Key Replacement in San Jose

Proton vehicles use a range of key systems depending on the model and year. Many use a basic transponder key with a chip in the head that the immobilizer must recognize before the engine will start. Others use a remote head or flip key that combines the cut blade with lock, unlock, and trunk buttons. Newer or higher-trim models such as the Saga, Persona, Iriz, Exora, and the X50 and X70 SUVs may use a proximity smart key with push-to-start, where the fob is detected without being inserted.

Across these systems, a Proton's immobilizer is an anti-theft feature that checks the key's encrypted chip against the car before allowing it to start. That is why a working blade alone is not enough; the key has to be programmed to your specific vehicle.

We are a mobile auto locksmith and we come to your vehicle across San Jose and the South Bay. On-site we can cut and program replacement keys, handle all-keys-lost situations, add a spare to keys you already have, and program fobs and transponders.

• Cut and program replacement keys at your location
• All-keys-lost service when no working key remains
• Add a spare key or fob to your set
• Proximity smart key and push-to-start programming where supported
• Transponder and remote fob programming

Proton key systems vary year to year, so call (408) 899-5558 to confirm your exact year, make, and model before service.