Car keys · Cannington
Spare Car Key Duplication in Cannington
The blade on the everyday key has gone shiny and thin along one edge, and lately it needs a wiggle before the ignition catches.
In plain words
A vehicle that arrives with only one working key is a common situation after a private sale or an estate transfer, and it is one of the more straightforward calls a locksmith takes. Working from the single key and the vehicle itself, the blade is duplicated or cut to code, and the immobilizer chip is matched or freshly programmed so the new key is recognized on its own. Both keys are tested in the doors and the ignition before the appointment ends, which also gives the vehicle a documented second key from that point forward instead of an unknown history.
How the visit goesThe proximity fob has ridden in a pocket for years, the range feels shorter than it used to, and a dashboard warning mentioned a battery a while back. Nobody has sorted out what happens on the day it finally goes dark.
Spare Car Key Duplication
How the visit goes
Locating the right blank
A correct spare starts with the correct blank: the same blade profile as the original, and where relevant the same shell shape for a remote head or proximity fob so the buttons and battery compartment line up. Aftermarket blanks exist for most common platforms, while a less common or very recent model sometimes calls for a shell sourced specifically for that vehicle. Getting this step right avoids a mismatch discovered only after cutting has begun, and it is one of the reasons the vehicle's year, make and model are confirmed early rather than assumed from the look of the current key.
Cutting the blade
A mechanical duplicate is produced either by tracing the original on a key-cutting machine, which follows every notch of the existing blade into a fresh blank, or by cutting to a factory code pulled from the VIN and the lock manufacturer's records. Code-cutting is used when the original is too worn to trace reliably, since copying a worn blade would simply pass its rounded edges on to the spare. Either way the new blade is deburred and test-fitted into the door or ignition lock before any electronic work begins, so a mechanical problem is caught early rather than blamed on the chip later.
Two keys, both proven
The visit ends with two keys that have each been tested on their own: every door, the trunk or hatch, the ignition or start button, and any remote functions. Neither key is a backup that has only been assumed to work, and neither is treated as the senior copy. It is worth deciding on the spot which key rides on the daily ring and which goes into storage, and writing that decision down somewhere the household will actually check later, such as a shared note or a label on the ring itself, rather than trusting memory a year from now.
Spare Car Key Duplication
In the van
VIN and key-system reference
Transponder chip
Deburring file
Coin-cell fob battery
Chip cloning tool
Spare Car Key Duplication
What affects the quote
Matching two vehicles to one key
Bringing a second vehicle onto the same key, when the two lock systems are compatible, takes more identification and testing than producing a spare for a single car alone.
Copying versus diagnostic programming
Some vehicles allow the chip to be copied directly from the original in one step, while others need the locksmith to connect through the diagnostic port and have the vehicle's own module enrol a freshly coded chip, which takes longer at the car.
Condition of the working key
A clean, unworn original traces onto a blank without much fuss, while a thinned or damaged blade may need cutting to a factory code instead, which is a different process with its own materials.
What to have ready
- Do you currently have one working key, or more than one?
- Do you want the spare to match every function, or just start the car?
- How many spare keys would you like made?
Spare Car Key Duplication: questions
QuestionsCan a spare be made if the vehicle has an aftermarket alarm or remote starter installed?
Generally yes, though it is worth mentioning any aftermarket system when you call, since a factory immobilizer that has been wired into a third-party alarm or remote starter sometimes behaves differently from the standard setup the locksmith expects. Knowing this in advance lets the visit account for it rather than discovering it partway through programming.
How is the electronic chip handled during duplication?
Where the transponder supports it, the chip in the working key is read and its data cloned onto a fresh chip, sometimes with vehicle-specific data pulled from the car to help. Where cloning is not supported for that particular vehicle and chip, the locksmith instead connects through the diagnostic port and has the car's own security module enrol a freshly coded chip as a new, independently authorized key.
Can a spare be made from a key that is already worn?
Yes, and it is often a good reason to make one. Rather than tracing every rounded edge of a worn blade onto the new copy, the locksmith can decode the lock or cut to a valid factory code for the blade, then read or clone the chip data separately for the electronics, producing a spare that is cleaner than the original rather than a copy of its wear. The worn key can then be compared against the fresh one and retired if it is due for that.
Related services
- Car Key ReplacementYou bought the car privately and it came with a single key on a shoelace.
- Key Fob ProgrammingA replacement fob just arrived in its box, shiny and untouched.
- Transponder Key ProgrammingEvery key that ever opened the car is gone at once, one taken with a stolen bag, the spare misplaced months ago and never replaced.