Car Key Programming in Toronto & the GTA
New key that turns but will not start the car? Remote that stopped locking the doors? We program transponder keys, remotes, smart keys and push-to-start fobs at your vehicle, at home, at work or in a parking lot, across Toronto and the GTA.
- Family owned since 2010
- Licensed and insured
- Free quotes
- Mobile: we come to you




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New key will not start
The blade fits, but the chip in the key has not been paired with the car, so the engine will not start.
Remote stopped working
Buttons do nothing after a battery change or a drop, or the remote works only up close.
Push-to-start not found
The dash says no key detected, even with the smart key in the car.
Lost or stolen key
Old keys can be erased from the car so they no longer start it, and new keys programmed in.
Why car keys need programming
Most cars from the last 25 years have an immobilizer. It stops the engine from starting unless it reads a matching code from the chip in your key or fob. A key cut at a hardware store can fit the lock and still not start the car, because the chip has not been paired.
Programming connects our equipment to the car, usually through the diagnostic port under the dash, and adds the new key to the car's memory. Remotes and smart keys are paired the same way, so the buttons lock and unlock the doors.
Need the key itself first? See car key replacement or car key duplication.

Keys and fobs we program
Tell us the make, model and year when you call. We check that we can program your vehicle before we book the visit.
Transponder keys
Metal keys with a chip in the head. We cut the blade and pair the chip with the car.
Remotes and flip keys
Remote head keys and flip keys, with the lock, unlock and trunk buttons paired to the car.
Smart keys and push-to-start
Proximity fobs for cars with a start button, paired so the car finds the key inside.
Erase lost keys
When a key is lost or stolen, we can remove it from the car memory. See erasing keys from car memory.
Keys programmed at customers' cars
Photos from car key jobs done by GTA Lockman technicians.








How a programming visit works
Call with the car details
Give us the make, model and year, how many keys you have and what is not working.
Free quote
We confirm we can program your vehicle and give you the price before we book.
Program at the car
We come to your car with the keys, fobs and programming equipment and pair the new key.
Test everything
We test starting the engine, the door buttons and the trunk with you before we leave.
Before we cut or program a key, we ask for the vehicle registration and photo ID that matches it. For a leased or company vehicle, bring documents that show you are allowed to use it. Car keys come with a 3-month warranty and programming with a 12-month warranty.
