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Brown'sCorners Locksmith Pros
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Hands operating a bench-mounted machine with a key clamped beneath a vertical cutter and a loose lock cylinder nearby. — Car Key Replacement, Markham
Two people beside a dark sedan, one holding up a black key fob. — Car Lockout Service, Markham

Car keys · Markham

Car Key Replacement

After fifteen years the blade has worn to a smooth sliver.

Call (289) 306-0671

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 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.

How the visit goes

Car Key Replacement

How the visit goes

Technician in a cap and glasses holding a small key fob beside the dashboard of a black motorcycle in a garage.
Rugged handheld tablet showing a menu on a workbench beside two key fobs, a laptop, a cable plug and a blue cloth.
  1. Do you still have one key that works?

    The most important fact after ownership is whether a single working key exists. With one in hand, the visit is an add-a-key: the existing key proves the immobilizer is healthy, the new blade can be checked against it, and programming is usually the shorter routine. With none, it is an all-keys-lost job: the blade has to come from the lock or the code, and the immobilizer has to be reset before new keys are stored. A key that opens the doors but no longer starts the engine counts as no working key for programming purposes, though its blade is still useful as a pattern.

  2. Rebuilding a damaged key around its electronics

    A key with a cracked case, a broken ring loop or a snapped blade often keeps a perfectly good circuit board and transponder inside. The locksmith opens the old shell, lifts out the board and the chip, and seats them in a new case of the correct pattern. A fresh blade is cut to code and fitted to the new head, and a new coin cell goes in while the case is open. Because the chip and the remote circuit have not changed, no programming is required, and the rebuilt key behaves exactly as the original did on the day it left the factory.

  3. Keys that work every lock on the car

    You leave with keys that have been tried, not merely programmed. Each one has opened the doors, turned or woken the ignition, started the engine and worked every button it carries, and you have watched it happen. If the car has a mechanical lock that was stiff, it has been freed and lubricated so the blade is a genuine backup. Should the old key have been rebuilt around its original electronics, it has been through the same checks as a brand-new one. The point of the routine is simple: the next time you reach for the key, there is nothing to wonder about.

Car Key Replacement

In the van

  • Decoding pick and lock reader

  • OBD programming tool

  • Laser-style milling cutter

  • Fob coin-cell battery

  • Transponder key blank

White door with a black keypad deadbolt and knob, beside a towel holding a lock body, latch, screwdriver and a tool bag.

Car Key Replacement

What affects the quote

  1. Time of the call

    A weekday afternoon and a holiday evening cost the same amount for a car key replacement. The locksmith confirms the exact figure on site once the vehicle, the fob type and the number of keys needed have been checked in person.

  2. Battery and access to the car

    A flat vehicle battery needs a maintainer during programming, and a locked car with no key has to be opened before the diagnostic port can be reached. Both are small items that the quote names plainly.

  3. Transponder, remote or proximity

    A key with only a chip, a remote-head key with buttons and a full proximity fob are three tiers of hardware and three programming procedures. The quote names which one your car uses.

What to have ready

  • Does the car start with a key in the ignition or with a push button?
  • Is the car registered in your name, leased, or owned by a company?
  • Would you like any missing keys erased so they can no longer start the car?
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Car Key Replacement: questions

Questions
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.

The fob died in the cold. Is that a battery or the key?

Almost always the battery. Coin cells deliver less in deep cold, and a cell that was already weak goes quiet on the first bitter morning. Most cars still start with a flat fob if it is pressed to the start button or laid in a marked slot, and the emergency blade opens the door. Replace the cell, and if the fob stays silent with a fresh one, the remote board or a corroded contact is the next thing to look at.

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.

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