Car Key Programming Mississauga

Fast, Reliable, and Affordable Car Key Programming

Losing your car key or having it stop working can be stressful — but replacing and reprogramming it doesn’t have to be. At Johnston & Magwood Tires & Auto, we offer professional car key programming and replacement services for all makes and models, right here in Mississauga.

With over 80 years of trusted automotive experience, our certified technicians provide quick, accurate, and affordable key programming using industry-approved tools and diagnostic equipment. Whether you’ve got a new transponder key, smart key, or key fob, we can program it to your vehicle safely and efficiently — without the high dealership prices.

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Trusted care for your car, from tires to tune-ups. Book now for fast, reliable service you can count on.

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What Our Clients Say About Us

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.

Any questions ??

We got you .

Get clear, straightforward answers to the most common questions from our customers.

Got More Questions?
Can you program keys for any vehicle?

Yes. We service most domestic and import vehicles, including cars, SUVs, and trucks.

Do I need to go to the dealership for key programming?

No. Our technicians use professional diagnostic tools that provide the same programming capabilities — often at a lower cost.

How long does key programming take?

Most keys can be programmed within 30–60 minutes, depending on your vehicle type.

Can you replace lost keys?

Yes. We can erase old keys from your system and program new ones for enhanced security.

Do you handle push-to-start or smart keys?

Absolutely. We specialize in smart key and proximity fob programming for modern vehicles.