Car keys · Toronto
Spare Car Key Duplication
A car sits at the cottage all season, and the only key to it lives on a ring three hours away in the city.
In plain words
Making a spare before the original goes missing is simpler than making one after, because the whole process is built from a working key to read or trace from. With the vehicle and its existing key both present, the locksmith identifies the blade profile and the chip or coding the immobilizer expects, produces a matching blank, and gives it the same electronic identity as the first key. Testing both keys side by side in every door and the ignition confirms the spare performs the same way, so a future lost key becomes an errand rather than a call for entry.
How the visit goesA lockout last month ended with a locksmith opening the door and going home, and the same single key has been carried ever since with nothing behind it. The relief of getting back in faded within a week into the same exposure.
Spare Car Key Duplication
How the visit goes
Checking how many keys already exist
A vehicle can be sitting on more than the one key its owner mentions, and an honest account of every key, valet key and remote in circulation shapes what happens next. If two or three already exist and work, a new spare simply joins that set. If a key was lost some time ago and never accounted for, that shifts the conversation toward reprogramming the whole system to drop the missing one, rather than quietly adding a fourth key to a set that already has an unknown copy loose somewhere. Either way, knowing the real count is worth establishing before cutting begins.
Bringing a second vehicle onto the same key
Households running two vehicles from the same manufacturer sometimes want one key that opens and starts both, which needs more than a shared keyway: the two locks must also take a compatible bitting, or one vehicle's cylinders need rekeying to match, and the transponder chosen has to be capable of authorization on both immobilizers. The locksmith reads both vehicles' requirements before cutting anything, and where a single key genuinely will not satisfy both locks and both immobilizers, the answer is two separate keys carried on one ring, explained before any cutting starts so expectations match what the hardware can actually deliver.
Fewer surprises through the seasons
A tested spare carries a household through the situations that tend to arrive without warning: a fob battery finally dying in the cold, a blade thinning out after years on the same ring, or a key simply not being where it was left that morning. None of those moments needs to become a locksmith call anymore, because the second key was already proven capable of everything the first one does, sitting wherever it was agreed to live, ready for the day it is actually needed.
Spare Car Key Duplication
In the van
Key gauge and calipers
Remote-head key shell
Deburring file
Key duplicating machine
VIN and key-system reference
Spare Car Key Duplication
What affects the quote
Sourcing the blank or shell
Common platforms use blanks kept in regular stock, while a less common model or an unusual shell sometimes has to be sourced specifically for that vehicle before work can begin.
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.
Reprogramming to drop a missing key
When a key is genuinely unaccounted for, having the vehicle's system stop recognizing it is separate work from cutting a new spare, and is scoped as its own step when it is needed.
What to have ready
- Has the vehicle had an aftermarket alarm or remote starter installed?
- What year, make and model is the vehicle?
- Do you know the VIN, or can you access the door jamb?
Spare Car Key Duplication: questions
QuestionsWhat if the fob's battery is already low?
A low battery in the original does not stop a spare from being made, since the chip and code stored inside still respond during programming even as the battery fades. It is worth mentioning the low battery when you call, though, since the new fob is a natural moment to have a fresh battery on hand for both keys and to note which type each one takes.
Should I get the locks rekeyed when I get a spare, or is that a different service?
They are related but not identical, since a car's door and ignition locks are a separate mechanical layer from the immobilizer even though both systems usually get touched in the same visit. Making a spare and removing a genuinely unaccounted-for key's electronic access are handled together, and if that lost key's blade could still turn a matching door cylinder by hand, the locksmith rekeys that cylinder as part of the same appointment.
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 ReplacementThe car is yours now, but somebody else still holds a key to it.
- Key Fob ProgrammingA cracked case or a spin through the wash left the fob unresponsive, and opening it up reveals a slightly corroded board where the buttons used to sit.
- Transponder Key ProgrammingThe car came with a single key when the sale went through, and that key is the only thing standing between the household and being stranded.