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BirchwoodLock & Key Specialists · MississaugaOpen 24/7(289) 805-6881Request a visit
Hands holding a black car key fob above a workbench, beside a wired handheld device with a screen. — Car Key Replacement, Mississauga

Car keys · Mississauga

Car Key Replacement

The car is yours now, but somebody else still holds a key to it. Adding another key is not enough; you want the old ones to stop working the vehicle so the question is settled for good.

Car Key Replacement

In plain words

Every replacement key starts with a simple question: is this your car to key? The answer is settled with government photo identification and the vehicle permit, the green ownership issued by ServiceOntario, matched against the VIN on the dash and the door label. A lease agreement, fleet paperwork or a bill of sale covers a company car or a vehicle bought last week. The check takes a minute and it protects you as much as anyone, because the same standard applies to whoever might one day ask for a key to your car. Once it is done, the technical work begins.

Sound familiar?

The key snapped at the head while you were turning it in a stiff, frosty door lock. Half the blade is in your hand, the rest is inside the lock, and the plastic head still lights up when you press a button.

How the visit goes

Mississauga

How the visit goes

  1. Which functions the new key should have

    Not every key for the same car does the same things, so the locksmith asks what the old one did and what you would like now. Lock and unlock are standard; trunk release, panic alarm, remote start and memory seat recall depend on the fob part number and how the car is equipped. Phone-as-a-key is separate, set up through the vehicle's own software and account rather than by fob part number. Some owners want a plain spare key; others want a full duplicate of the original fob. Naming the functions up front means the right part is fitted and each one is tested at the end.

  2. Milling a high-security blade

    Many vehicles from the last two decades use an internal-cut key, sometimes called a laser-cut or sidewinder key, with a wavy groove milled into the flat of the blade instead of teeth along its edge. These are produced on a milling cutter that follows the code to a fine tolerance, because the wafers in a high-security lock have little forgiveness for an off-depth cut. The blank is clamped, the groove is milled on both sides, the burrs are cleaned off and the blade is checked in the lock for smooth travel. A blade that drags or catches is recut rather than forced.

  3. A spare, and the reason to keep it away from the car

    Two working keys change the shape of every future visit. With one in hand, adding another is a short programming routine; with none, the car has to be opened, decoded and reset. For that reason the locksmith will usually suggest making the spare while the tools are out, and will suggest a home for it that is not the glovebox, the console or a magnetic box under the bumper. A drawer at home, a trusted family member or a small lockbox all work. Test the spare every few months so a flat coin cell is discovered on a Sunday afternoon rather than in a parking lot.

Car Key Replacement

In the van

  • Code-cutting machine
  • Remote-head key shell
  • Vehicle battery maintainer
  • OBD programming tool
  • Transponder chip

What affects the quote

Same fees day, night or weekend

  1. 1Shell only, or a complete key

    If your key's electronics are healthy, a new case and blade around the old board is a smaller job than a complete key with programming. The inspection decides which, before anything is quoted.

  2. 2Where the vehicle is

    Travel is part of every mobile call. A car on a driveway across town and one in a lot at the end of a rural road involve different trips, and the quote reflects the distance.

  3. 3How many keys you leave with

    Each key is a blank, a cut and a programming slot, so the total follows the count. Making the spare during the same visit is usually the sensible time to do it.

What to have ready

0 of 3 ready

Call (289) 805-6881

Car Key Replacement: questions

My copied key opens the doors but the engine cuts out. Why?

The blade was copied but the chip was not. A hardware-store duplicate cut onto a plain blank has the right teeth, so it turns the locks and the ignition, yet the immobilizer hears no answer and shuts the engine off after a moment. The remedy is a proper transponder key: a blank with the correct chip, cut to your blade and programmed to the car, or a chip cloned from a working original.

After a break-in the doors and ignition are on different keys. Can that be fixed?

Yes. When a door lock is forced and replaced, or an ignition is swapped, the car can end up needing two blades. A locksmith can rekey the replacement cylinder to match the surviving one, so a single key operates every lock again, and cut new keys to that combination. The transponder side is unchanged by the lock work, so your existing programmed keys carry on starting the car once the blades match.

My key needs a wiggle in the ignition. Will a new key help?

Often, yes. A key that has been copied from copies or worn thin over the years lifts the wafers to the wrong heights, and a fresh blade cut to code restores the fit. If the wiggle continues with the new key, the wafers in the ignition cylinder have worn as well, and that cylinder can be overhauled so both the old and new keys turn cleanly. The locksmith checks the cylinder during the visit and tells you which it is.

Car Keys

Car Key Replacement near you

This is the working list of services for Mississauga: the jobs a locksmith gets asked to do week in and week out. Lockouts and broken keys. Rekeys and lock changes. Deadbolts, high-security cylinders and smart locks. Commercial hardware and master key systems. Safe opening. And key cutting, house and vehicle alike.

Open 24/7 · call(289) 805-6881Request a visit