Key Fob Programming & Replacement in Houston, TX

If your fob stopped working, you lost it, or you need a spare, you need fast help from a technician with the right tools. Express Locksmith provides mobile key fob programming and replacement in Houston, TX for many makes and models, including smart keys, proximity fobs, and push-to-start systems. We diagnose the issue, program the fob correctly, and test lock/unlock, trunk, and start functions before we leave.

Want pricing expectations before you call? See our pricing, then we will confirm options based on your year, make, model, and situation.

Need help with a vehicle lockout or broader car key issues? Use: Automotive Locksmith Services. If you are locked out right now, start here: Emergency Locksmith Services.

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Key fob replacement and programming service in Houston TX

Expert Key Fob Programming for Smart Keys and Push-to-Start

Most key fobs include a remote transmitter, and many also include a transponder or proximity system that must communicate with your vehicle’s immobilizer. If programming is not done correctly, the car may not start, the fob may work intermittently, or security features may fail.

We can help if your key fob:

  • Stops responding, loses signal, or works intermittently
  • Was lost or stolen and you need a replacement that actually starts the vehicle
  • Uses proximity/push-to-start features
  • Needs a spare duplicate fob programmed for convenience

In many cases, we can complete replacement and programming on-site without dealership delays. If the underlying issue is the vehicle key system (not the fob), we will explain options before any work begins.

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What Is a Key Fob?

A key fob is a wireless device that controls locks, alarms, trunk release, and on many vehicles, ignition functions. When you press a button (or when the fob is nearby), it transmits a coded signal to your vehicle’s onboard security system. Modern fobs add convenience and security, but when they fail, replacement and programming must be done correctly so your vehicle recognizes the new fob.

Common key fob types we work with

  • Standard remote fobs: lock/unlock, panic, trunk
  • Transponder keys: include a chip required to start the vehicle
  • Smart keys / proximity fobs: push-to-start systems, proximity unlock

Fast diagnosis: fob problem vs vehicle problem

  • Fob issue: cracked housing, dead battery, water damage, worn buttons
  • Programming/communication issue: intermittent response, lost pairing
  • Vehicle-side issue: immobilizer faults, receiver/antenna problems, ignition module issues
Different types of car keys including key fobs and smart keys

Lost or Broken Key Fob? Here Is the Right Next Step

Losing your key fob is stressful. A broken fob is worse when you are stranded, late, or dealing with a vehicle that will not recognize the key. We provide mobile key fob replacement and programming inside Houston, with clear steps and verification before we leave.

  • Locked out of your vehicle or trunk? We can restore access, then handle replacement.
  • Fob not working? We diagnose the issue and reprogram or replace the fob when appropriate.
  • Lost all fobs/keys? We will confirm vehicle details and explain replacement options based on your system.

Helpful prep: have your year/make/model ready. If you are unsure, you can confirm details using your VIN (Vehicle Identification Number). The NHTSA explains VIN lookup here: NHTSA VIN Decoder.

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Vehicle Brands We Support


Every make and model has unique programming requirements. We service many domestic and foreign brands. If you have a high-security or advanced proximity system, call with your year/make/model so we can confirm compatibility fast.

American Brands

  • Ford
  • Chevrolet
  • GMC
  • Dodge
  • Chrysler
  • Jeep
  • Cadillac
  • Buick
  • Lincoln
  • Mercury
  • Saturn
  • Pontiac

Asian Brands

  • Toyota
  • Honda
  • Mazda
  • Hyundai
  • Kia
  • Nissan
  • Subaru
  • Mitsubishi
  • Suzuki
  • Acura
  • Scion
  • Isuzu

European Brands

  • BMW
  • Audi
  • Jaguar
  • Mercedes
  • Mini Cooper
  • Land Rover
  • Infiniti
  • Lexus

Not all locksmiths can service advanced smart key systems. Our technicians can handle many proximity keys and complex fobs with proper testing before completion.

How Much Does a Key Fob Replacement Cost in Houston?

Total cost depends on your vehicle system, whether you need a new fob, and how complex the programming steps are. Luxury vehicles and newer smart key systems often require additional pairing and security steps.

  • Programming-only: when you already have a compatible fob
  • Fob + programming: replacement bundled with setup and testing
  • All keys lost: usually more involved due to security and verification requirements

For transparent expectations, visit our pricing page or call and we will quote based on your year/make/model and situation.

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Same-Day Mobile Key Fob Replacement in Houston

We come to you in Houston for key fob replacement and programming. Many customers call us from home, work, parking lots, or apartment complexes. In many cases we can program and verify your replacement fob on-site so you can drive away with confidence.

For broader vehicle locksmith needs like lockouts, stuck keys, or general auto services, use: Automotive Locksmith Services. For immediate lockout help any time, use: Emergency Locksmith Services.

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Why Choose Express Locksmith for Key Fob Programming?

You are not calling for vague promises. You are calling for the fob to work correctly. We focus on correct programming, clean verification, and clear guidance so you are not stuck repeating the same problem next week.

  • Mobile service inside Houston
  • Professional equipment for many smart key systems
  • Clear communication and realistic expectations
  • Testing lock/unlock, trunk, and start functions before completion
  • Alternative to dealership scheduling delays

If your issue turns out to be more than a fob, we can route you to the correct vehicle service page: Automotive Locksmith Services.

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Mobile key fob replacement service in Houston TX

Key Fob Programming FAQs


What is key fob programming, and why is it necessary?

Programming syncs a replacement fob to your vehicle’s security system. It is required when you replace a lost fob, add a spare, or when the fob stops communicating correctly with the vehicle.

Can I program a key fob myself?

Some older vehicles allow limited DIY programming. Many modern vehicles require specialized tools and security steps. If your vehicle uses a smart key or immobilizer system, professional programming is usually required.

How long does key fob programming take?

Timing depends on make and model. Many jobs can be completed during the service visit. If your vehicle requires additional steps, we will explain the process before work begins.

What should I do if I lose my key fob?

Call quickly to reduce risk and restore access. We can replace and program a new fob and, when applicable, help reduce the chance an old fob can start the vehicle.

Do you replace smart keys and push-to-start fobs?

Yes, for many makes and models. Call with your year, make, model, and whether your vehicle is push-to-start so we can confirm the correct replacement path.

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Contact Us for Key Fob Replacement in Houston

Need key fob replacement, programming help, or a spare fob added? Call (832) 690-1640 or contact us online for fast mobile service in Houston.

Locked out and need immediate help? Call our 24/7 emergency locksmith team now.

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Houston Key Fob Replacement Coverage


We provide mobile key fob programming and replacement service within Houston city limits. Call to confirm availability based on your vehicle system and your exact situation.

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