Car keys · Whitchurch-Stouffville
Car Key Replacement
The only key to the car went into the lake with the kayak.
In plain words
Winter produces its own kind of key trouble. Coin cells lose output in deep cold, so a fob that was fine in October goes quiet in January; a fob dropped in slush or lost under a snowbank is gone until spring; and the mechanical door lock on a keyless car, untouched for years and crusted with road salt, is stiff exactly when you need it. A replacement visit in these conditions covers it all: a working fob, fresh batteries, a cut emergency blade, and a door cylinder cleaned and lubricated per the maker's instructions, so the metal key is a real backup rather than a decoration.
How the visit goesYou bought the car privately and it came with a single key on a shoelace. Every time it leaves your hand you notice, and you would like a second one made before the first goes missing.
Car Key Replacement
How the visit goes
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.
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.
The missing key is now just metal
If a key was lost or stolen and you chose to have it erased, the car no longer answers to its chip. Whoever finds it holds a blade that may open a door and a fob that can no longer start the engine or, once unpaired, work the locks. The locksmith tells you how many keys the vehicle now recognizes, which should equal the number in your hand. If a stranger holding a working blade still bothers you, the door and ignition locks can be swapped to a new cut, and that is a separate decision you can take with a clear head rather than on the day.
Car Key Replacement
In the van
Remote-head key shell
Remote frequency tester
Transponder key blank
Transponder chip
Fob coin-cell battery
Car Key Replacement
What affects the quote
Edge-cut or high-security blade
A plain edge-cut blade is cut on a code machine in moments. An internal high-security blade is milled to fine tolerances on a different machine, and the blanks themselves are dearer, so the blade type shows up in the quote.
Programming route the car allows
Some vehicles accept a new key through an on-board routine, most through the programming tool, and a few only through a dealer procedure. The route determines the time and the data involved, and the quote says which it is.
Security data for the vehicle
Some cars give up their programming PIN through the tool; others require the code to be retrieved from manufacturer secure data, which involves a registered request. That step is quoted when the VIN shows it applies.
What to have ready
- Was the key lost, stolen, broken, or damaged by water?
- Does the car start with a key in the ignition or with a push button?
- Would you like any missing keys erased so they can no longer start the car?
Car Key Replacement: questions
QuestionsAfter 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.
Can you make a key for a car with push-button start?
On many vehicles, yes: a proximity fob is registered to the vehicle through the diagnostic port in much the same way as a transponder key, and then tested for passive entry at the handles and for starting with the fob in a pocket. Other systems pair a proximity fob through onboard, app-based or dealer-only steps instead. The emergency blade tucked inside the fob is cut to the door lock so you have a mechanical way in, and the VIN check reveals in advance which route a given vehicle needs.
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.
Related services
- Spare Car Key DuplicationOne key opens the car, starts the car, and rides in one pocket every day.
- Key Fob ProgrammingThe remote clicks the way it always has, but the vehicle no longer locks, unlocks or answers with its usual chirp.
- Transponder Key ProgrammingThe new key slides into the ignition and turns exactly the way the old one did, but the engine only cranks.