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Advanced Automotive Service

Push-to-Start Smart Key Replacement in Granbury, TX

Lost or damaged your push-to-start smart key? We supply and program proximity keys for all vehicle makes and models — at your location in the Granbury area.

Smart Key Specialists
All Makes & Models
Mobile Service
Same-Day Available

Typical Price Range

$200 – $500

Save 40–60% vs. dealership

Call for exact quote

How Push-to-Start Smart Keys Work

Push-to-start (also called keyless ignition or proximity key) systems use a smart key fob that communicates wirelessly with your vehicle. When you approach the car with the fob in your pocket or bag, sensors in the door handles detect the key's signal and unlock the doors automatically. Once inside, pressing the start button triggers a secondary verification — the car's computer sends an encrypted challenge to the key fob, and only if the correct response is received does the engine start. This multi-layer security makes smart keys extremely secure, but also more complex to replace than traditional keys.

Wireless proximity detection (125 kHz LF + 315/433 MHz RF)
Encrypted rolling-code authentication
Passive entry — doors unlock as you approach
Push-button engine start
Built-in mechanical emergency key blade
Battery-powered fob with low-battery warning

Smart Key Replacement Process

Replacing a push-to-start key requires specialized equipment and expertise that goes beyond basic key cutting. Our technicians use professional-grade smart key programming tools that communicate directly with your vehicle's Body Control Module (BCM) and immobilizer system. The process involves sourcing the correct OEM or high-quality aftermarket smart key fob for your specific vehicle, programming the fob's unique encrypted ID to the vehicle's security system, and verifying all functions — proximity unlock, push-button start, remote lock/unlock, and panic alarm.

All-Keys-Lost Smart Key Recovery

If you've lost every smart key for your push-to-start vehicle, the situation is more complex but absolutely solvable without a trip to the dealership. Our all-keys-lost smart key recovery procedure involves connecting to the vehicle's OBD-II port, accessing the immobilizer/BCM security layer, performing a PIN code extraction or security bypass (depending on the make), resetting the key registration, and programming a new smart key from scratch. Most all-keys-lost smart key jobs are completed in 60–90 minutes on-site.

Brands & Models We Service

We program push-to-start smart keys for virtually every vehicle brand that uses keyless ignition technology. This includes all major Japanese, American, European, and Korean manufacturers from model year 2005 to present. Whether you drive a Toyota RAV4, Honda Accord, Ford Explorer, Nissan Rogue, Hyundai Tucson, or a luxury vehicle like a BMW X5 or Mercedes GLC, we have the tools and key blanks to handle your smart key replacement on-site.

Mobile Service Across Hood County

Our fully equipped mobile service van brings smart key replacement directly to your location anywhere in the Granbury, TX area. We serve all of Hood County including Granbury, Acton, Pecan Plantation, DeCordova, and Tolar, plus nearby communities in Johnson County, Somervell County, and Parker County — anywhere within 25 miles of Granbury.

Vehicles We Service

Toyota Camry/RAV4/HighlanderHonda Civic/Accord/CR-VFord Explorer/Escape/F-150Nissan Altima/Rogue/PathfinderHyundai Tucson/Santa Fe/ElantraKia Sportage/Telluride/ForteChevrolet Equinox/Traverse/MalibuBMW 3/5/X3/X5 SeriesMercedes C/E/GLC ClassLexus RX/ES/NX

Ready to Get Started?

Call now for a free quote and same-day service.

Frequently Asked Questions

How much does push-to-start key replacement cost?
Push-to-start smart key replacement typically costs $200–$500 depending on your vehicle make, model, and whether it's a single key replacement or all-keys-lost situation. This is significantly less than dealership pricing, which often runs $400–$800+. Call (817) 214-2934 for an exact quote.
Can you replace a smart key without the original?
Yes. We can perform all-keys-lost smart key replacement for most vehicles. The process takes slightly longer (60–90 minutes) but is completed entirely at your location.
Will my old smart key still work after programming a new one?
If your old smart key is lost and you're getting a replacement, we can erase the lost key from the system so it no longer works — protecting your vehicle from unauthorized access.
Do you carry smart key fobs in stock?
Yes. Our mobile van carries smart key fobs for the most popular vehicles. For less common models, we may need to order the fob, which typically arrives within 1–2 business days.

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Or call us directly at (817) 214-2934

Licensed & Insured
30-Minute Average Response
25-Mile Service Radius
4.9 Stars • 47 Reviews
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