All Keys Lost
Locked out with no spare? We cut and program new keys on-site, including immobilizer pairing for most vehicles.
Learn more →Advanced Automotive Key & Security Programming
We provide mobile automotive locksmith service throughout Northern Utah and bring dealer-level programming and diagnostics directly to your vehicle. ECM/BCM programming, module cloning, and immobilizer solutions trusted by drivers, fleets, and repair facilities.
7 Days
Weekly Availability
Mobile
On-Site Service
Dealer-Level
Diagnostics & Programming
Mobile Key & Locksmith Services
Lost keys, spare keys, and ignition work—handled on-site at your location for most domestic, Asian, and European vehicles.
Key Programming
Transponder, remote, and proximity key programming synced to your vehicle's immobilizer and control modules.
Learn more →Duplicate & Spare Keys
Affordable spare keys cut and programmed before you ever get stranded—ideal for second drivers and families.
Learn more →Ignition Repair
Ignition cylinder repair and replacement for worn, stuck, or damaged ignition systems, with key re-sync.
Learn more →Key Extraction
Broken or stuck keys removed from locks and ignitions without damaging your vehicle.
Learn more →European Vehicle Keys
Specialized key replacement and programming for BMW, Mercedes-Benz, Audi, VW, and other European makes.
Learn more →Advanced Programming & Dealer-Level Diagnostics
Modern vehicles rely on interconnected control modules and encrypted security systems. We have the equipment and expertise to program and diagnose them on-site.
ECM & BCM Programming
VIN-matched engine and body control module programming, configuration, and immobilizer re-pairing after replacement or repair.
Module Programming & Cloning
Control module programming and data cloning that preserves key pairings and accelerates turnaround on supported platforms.
Immobilizer Diagnostics
Pinpoint anti-theft and no-start faults by testing transponders, antenna rings, security modules, and key synchronization.
Security & VIN Programming
Security module replacement, VIN writing, and factory-matched configuration for replacement control modules.
Used Module Configuration
Programming of used and replacement modules so they function correctly within your vehicle's security network.
Dealer-Level Diagnostics
Advanced diagnostics for complex vehicle electronics faults and module communication errors beyond standard equipment.
Commercial Support
Partner With a Specialist Your Shop Can Trust
Dealerships, repair facilities, fleet operators, and towing companies rely on Stuart's Auto Key for programming and immobilizer work they cannot complete in-house. Volume pricing and priority scheduling available.
Dealership Support
Overflow programming, key services, and module work.
Fleet Accounts
Multi-vehicle key and access solutions on schedule.
Repair Facilities
Post-repair programming and immobilizer pairing.
Locksmith Partners
Subcontract advanced vehicle programming and diagnostics you refer out.
Vehicles We Service
We program keys and service control modules for most domestic, Asian, and European vehicles. Find your make below.
Domestic
- Ford
- Lincoln
- Mercury
- Chevrolet
- GMC
- Cadillac
- Buick
- Dodge
- Ram
- Jeep
- Chrysler
Asian
- Toyota
- Lexus
- Honda
- Acura
- Nissan
- Infiniti
- Subaru
- Mazda
- Mitsubishi
- Hyundai
- Kia
European
- Volkswagen
- Audi
- BMW
- MINI
- Volvo
- Jaguar
- Land Rover
- Mercedes-Benz
- Porsche
Some advanced European systems may have limitations depending on model year, security system, and manufacturer restrictions.
Why Drivers Choose Stuart's Auto Key
- Mobile service — we come to your vehicle
- Advanced key and module programming
- BCM, ECM, TCM, and immobilizer diagnostics
- Domestic, Asian, and European vehicle coverage
- Family owned and operated
- Fair, upfront pricing
- 58 Verified Facebook Reviews
Trusted by Drivers Across Northern Utah
Real feedback from customers across Northern Utah for automotive key replacement, immobilizer repair, diagnostics, module programming, and mobile locksmith service.
About Us
About Stuart's Auto Key
Stuart's Auto Key is a family-owned and operated automotive locksmith and vehicle programming business serving Northern Utah. We started out of a genuine passion for automotive technology—and that hands-on curiosity is still what drives the work today.
We are automotive locksmith and vehicle programming specialists with real experience across domestic, Asian, and European vehicles. Using dealer-level diagnostics and professional programming equipment, we handle everything from lost keys to complex module work right at your location.
Because we are local and family-run, every job matters to us. We stand behind our work and focus on doing it right, communicating clearly, and treating customers the way we would want to be treated.
What We Bring
- Family-owned & operated, local business
- Automotive locksmith specialists
- Vehicle programming specialists
- Domestic, Asian & European experience
- Dealer-level diagnostics & equipment
- A real passion for automotive technology
Need Key Programming, Diagnostics, or Module Service?
Call, text, or email for mobile automotive locksmith and advanced vehicle programming service. Commercial accounts welcome.