Car Key Programming Mississauga

What Is Car Key Programming?

Most modern vehicles use transponder or smart keys that communicate with your car’s immobilizer system to allow the engine to start. If your key isn’t correctly programmed, the vehicle won’t recognize it — meaning it won’t start even if the key physically fits the ignition.

Our car key programming service ensures that your new or replacement key is synced with your car’s computer system, restoring full functionality and security.

Our Car Key Programming Services

At Johnston & Magwood Tires & Auto, we can program, repair, or replace nearly any key type.

Our services include:

• Transponder key programming and reprogramming
  
• Smart key and key fob programming
  
• Remote keyless entry setup
  
• Push-to-start key synchronization
  
• Replacement key cutting and pairing
  
• Battery replacement for fobs and remotes
  
• Diagnostics for immobilizer or communication issues
  

We handle all major vehicle brands, including Toyota, Honda, Ford, Nissan, Hyundai, Kia, Chevrolet, and many more.

Why Choose Johnston & Magwood

With decades of automotive expertise, Johnston & Magwood Tires & Auto is Mississauga’s trusted choice for professional, dealer-level car key programming.

Here’s why drivers count on us:

• Certified technicians with advanced diagnostic tools
  
• Fast, on-site programming for most key types
  
• Lower cost than dealership services
  
• Secure, verified procedures that protect your vehicle’s anti-theft system
  
• Friendly, transparent service — no hidden fees
  

We combine cutting-edge technology with the reliability and care of a family-run shop.

Common Car Key Issues We Fix

• Key won’t start the car (immobilizer not recognizing signal)
  
• Remote functions stopped working (lock/unlock or trunk release)
  
• Key fob battery died or circuit board damaged
  
• Lost or stolen keys that need to be erased and replaced
  
• Vehicle not detecting push-button start key
  

Whatever the issue, our technicians will diagnose it accurately and get you back on the road quickly.

Tips for Car Key Maintenance

To extend the life and reliability of your key:

• Replace key fob batteries every 1–2 years.
  
• Keep your keys dry and avoid drops or impacts.
  
• Store a spare key — we can program one affordably for peace of mind.
  
• Have keys reprogrammed immediately if they’re lost or stolen.
  

Book Your Car Key Programming in Mississauga

Don’t let a lost or malfunctioning key slow you down. Trust Johnston & Magwood Tires & Auto for quick, professional car key programming and replacement — done right the first time.

📞 Call (905) 277-3143 or Book an Appointment online today.

Fast, affordable, and reliable — that’s the Johnston & Magwood difference.