What’s Included
Five service areas within Keys & Security.
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Car Keys for All Makes
From BMW, Mercedes-Benz and Audi to Toyota, Honda, Ford and Chevrolet, whether you need a spare key or help with a damaged or missing key, the correct replacement depends on your vehicle’s year, model and security system. We check compatibility and explain the available service options before proceeding.
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Smart Key & Fob Programming
Compatible replacement smart keys and remote fobs may need to be paired with the vehicle before their supported functions will operate. We evaluate the key and vehicle requirements and explain the setup involved. Not every aftermarket or previously used key can be programmed to every vehicle.
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All Keys Lost Solutions
If no working key remains, the replacement process depends on the vehicle’s security system and available service options. Contact us with your vehicle details so we can explain the assessment and ownership documents needed. Vehicle access or transport arrangements may also need to be discussed.
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Immobilizer & Anti-Theft Systems
An immobilizer checks whether an authorized key is present before allowing the vehicle to start. A no-start condition or security warning can involve the key, vehicle electronics or another fault. We assess these concerns with the aim of restoring normal authorized operation while retaining the vehicle’s security protections.
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Key Module Programming
Certain repairs or compatible module replacements require setup of modules associated with key recognition and start authorization. The procedure and availability depend on the vehicle and module. We assess compatibility and service requirements before recommending programming or further diagnosis.
Popular Keys & Security Services
What to Expect
Have your year, make, model, identification and proof of ownership available. Let us know whether any working keys remain. We confirm the information and explain which service options can be assessed for your vehicle.
Common Questions
Are you a car locksmith in Plano, TX?
Yes. Top Coding is an automotive locksmith in Plano, TX, for all makes and models, with a specialty in European vehicles. We serve drivers from Dallas, Richardson, Allen, Frisco and nearby cities. Our locksmith work covers vehicle keys, remotes, locks and security systems only; we do not offer residential or commercial locksmith services.
How much does a car key replacement cost?
The cost of a replacement car key or key fob depends on the vehicle’s year, make and model, the type of key (a traditional cut key, a transponder chip key, a remote fob or a push-to-start smart key) and whether a working key remains. Replacing lost car keys usually takes more steps than making a spare from a working key. Call us with your vehicle details for a quote before any work begins.
Can you replace a Mercedes-Benz key?
Mercedes-Benz key replacement depends on the model, year and key system. Many models use an electronic key that works with the electronic ignition switch (EIS/EZS) or a keyless-go system. Tell us the year and model, whether you still have a working key, and whether the key is lost, damaged or you only need a spare. We explain the options available for your vehicle.
Do I have to go to the dealership for a key fob replacement?
No, the dealership is not the only option. Top Coding can assess key fob replacement and programming for all makes, from BMW, Mercedes-Benz, Audi and Volkswagen to Toyota, Honda, Nissan, Ford, Chevrolet and GMC. Availability depends on the vehicle and the key.
Why is my VW key fob not working after a battery change?
First check that the new battery is the correct type and is fitted the right way up. If the remote still does not work, or the dashboard shows “Key not detected”, the fob may need to be re-synchronized, or there may be a fault with the key, an antenna or the vehicle electronics. On many Volkswagen models the message asks you to hold the key against a marked area so the car can read it at close range; the location varies by model. If the problem continues, contact us to have the key and the vehicle checked.
Can you make a spare key or a duplicate car key?
A spare key is usually simpler to make while you still have a working key, so it is worth arranging one before the last key is lost. Most modern keys contain a transponder chip or remote that must be programmed to the vehicle, so a copy that is only cut may open the doors but not start the car.
My car does not recognize the key. Can the immobilizer be repaired?
A car that cranks but does not start, or shows a key or immobilizer warning, may have a faulty key, a failed transponder, or a problem with the immobilizer or a related module. We diagnose the cause and repair or program the affected parts to restore normal operation. We do not disable or remove immobilizers.
Why won’t my car doors lock?
If the doors will not lock or unlock with the key fob, the cause may be a weak fob battery, a key that has lost its programming, a door that the car reads as open, a failed door lock actuator, damaged wiring or a fault in the central locking or body control module. We diagnose central locking problems on European vehicles and explain the repair needed.
Need Help With a Key or Security Warning?
Contact Top Coding to discuss a spare key, replacement key or vehicle security-system concern.
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