
Lost Car Keys in Plano, TX
All keys lost? We create brand new keys from scratch — no original key needed. Mobile service to your location.

Losing your car keys is one of the most stressful situations a driver can face. Whether you've misplaced them, had them stolen, or they've simply stopped working, being without a functioning car key can bring your entire day to a halt. At Plano Locksmith, we specialize in all-keys-lost situations — the most technically demanding service in automotive locksmithing. Using dealer-level diagnostic tools and OEM-quality key blanks, we create entirely new keys from scratch and program them to your vehicle's immobilizer system, all at your location.
What Happens When All Keys Are Lost?
When you lose all keys to your vehicle, the process to get a new working key is significantly more complex than simply cutting a duplicate. Your vehicle's immobilizer system must be accessed, the existing key data must be cleared or overwritten, and new key credentials must be programmed into the car's computer. Depending on the vehicle make, this may involve accessing the Body Control Module (BCM), the Engine Control Module (ECM), or specialized security modules like BMW's CAS/FEM, Mercedes' EZS, or Land Rover's KVM. Our technicians carry the specialized tools and software to handle all of these procedures on-site.
How We Handle All-Keys-Lost Situations
Our process begins with verifying vehicle ownership through registration and ID. We then gain access to the vehicle without causing damage using professional lockout tools. Next, we connect our diagnostic equipment to the vehicle's OBD port and identify the exact key system specifications. We retrieve or generate the necessary PIN codes and security data, cut a new key by code using your vehicle's VIN-specific key cut data, and program the new key to the immobilizer system. Finally, we test all functions — mechanical lock operation, remote buttons, push-to-start, and engine start — to ensure everything works perfectly.
Vehicles We Service for All Keys Lost
We handle all-keys-lost situations for virtually every make and model on the road today. This includes European vehicles (BMW, Mercedes-Benz, Audi, Volkswagen, Porsche, Jaguar, Land Rover), Japanese vehicles (Toyota, Lexus, Honda, Acura, Nissan, Infiniti), and American vehicles (Ford, Chevrolet, GMC, Cadillac, Dodge, Chrysler, Jeep). Each brand has unique security protocols and programming requirements, and our team is trained and equipped to work with all of them.
Cost of Replacement When All Keys Are Lost
The cost of replacing lost car keys varies based on the vehicle make, model, year, and key type. Standard transponder keys in all-keys-lost situations typically range from $150–$250. Smart keys and proximity fobs for push-to-start vehicles range from $250–$500+. European luxury vehicles with advanced security systems may be higher. In every case, our pricing is significantly below what a dealership would charge — and we come to you, saving you the cost and hassle of a tow. We provide upfront pricing before starting any work.
Why Not Just Go to the Dealer?
Dealerships can certainly replace lost keys, but the process is often slow, expensive, and inconvenient. Most dealers require your vehicle to be towed to their facility, which adds $100–$200+ to the cost. Appointment wait times can be days or even weeks. Dealer key replacement pricing is typically 30–50% higher than our mobile rates. And for all-keys-lost situations, some dealers outsource the work to locksmiths anyway. By calling us directly, you get faster service, lower cost, and the convenience of having everything done at your location.
What We Offer
- All keys lost — new keys created from scratch
- No original key needed
- On-site key cutting by code
- Immobilizer programming for all makes
- Smart key and proximity fob replacement
- Push-to-start key programming
- Same-day service in most cases
- Significantly less than dealer pricing
- Ownership verification for your security
- Full function testing before we leave
Need This Service?
Our mobile team is ready to help you in Plano and surrounding areas.
Our Services
Brands We Service
Frequently Asked Questions
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Our advanced automotive locksmith team is ready. Call or text for fast mobile service anywhere in Plano.