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Key & Immobilizer Programming in Chicago

Tachyon Auto Service offers key and immobilizer programming for a range of vehicles. If your vehicle does not recognize a key or you need help with a programming requirement, contact us to confirm compatibility and service availability.


We serve Chicago, Chicagoland, and Northwest Indiana, with mobile service available by arrangement.

Key Recognition and Vehicle Security Systems


Many vehicles use an electronic security system to verify that an authorized key is present before allowing the engine to start.


A key-recognition problem can involve the key, vehicle electronics, or communication between components. Programming may be necessary, but diagnosis may also be needed to identify the cause.

Before Buying a Replacement Key


Keys and remotes that look alike may not be electronically compatible. Requirements vary by vehicle, and some previously used keys cannot be reused.


Before purchasing a key or remote, contact us with your vehicle details to discuss programming compatibility.

What to Tell Us When You Call


Please include:


  • Vehicle year, make, and model.
  • Whether you have a working key.
  • Whether the engine starts.
  • Any security warnings on the dashboard.
  • Whether you already have a replacement key.
  • Your location.


Please ask what identification and proof of ownership are required before the appointment.

Frequently Asked Questions

Contact us first. Compatibility depends on the vehicle and the specific key or remote. Please note that we do not provide warranty on customer-provided keys 

No. Security warnings can have several causes. Testing may be needed before deciding whether programming is the correct solution.

Ask About Key Programming


Call (773) 683-2668 to discuss your vehicle and key or immobilizer concern.