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Two brass house keys on a ring resting on a workshop counter. — Spare Car Key Duplication, Sawlog Bay

Car keys · Sawlog Bay

Spare Car Key Duplication in Sawlog Bay

A car sits at the cottage all season, and the only key to it lives on a ring three hours away in the city. Every visit begins with the same small worry about whether that ring made it into the right bag.

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Spare Car Key Duplication

In plain words

Spare car key duplication puts a second working key into your hand while the first is still around to copy from. The locksmith checks that you are entitled to the vehicle, reads the blade the existing key was cut to, and gives the new blank the same electronic identity the original carries, whether that means cloning a compatible transponder chip or enrolling a fresh chip through the car's diagnostic port. Before the visit ends, the new key is proven in every door, the trunk and the ignition or start button, so you leave with two keys known to work, not one tested key and one hopeful copy.

Sound familiar?

The blade on the everyday key has gone shiny and thin along one edge, and lately it needs a wiggle before the ignition catches. Nobody wants to be holding a failing original with nothing waiting in reserve if it finally gives out.

How the visit goes

Sawlog Bay

How the visit goes

  1. Deciding between copying and programming the chip

    Some immobilizer systems allow a new chip to be cloned directly from the working key's own data, which lets a matching second key be produced from the original. Other systems, including some that use rolling codes or added cryptography, call instead for connecting to the vehicle through its diagnostic port and enrolling a freshly coded chip as an additional authorized key rather than a copy of the first. The locksmith identifies which method the specific vehicle and transponder support before starting the work, since the two routes use different tools and take different amounts of time at the vehicle.

  2. 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.

  3. Passing a key to someone else

    When the new spare is meant for a specific person rather than a drawer, such as a family member at another address or a regular caretaker for the vehicle, it is worth agreeing at handover what that person's key is expected to do and what happens if their circumstances change, such as no longer needing access. On some vehicles, removing one person's key later means the immobilizer's whole key memory is cleared and every remaining key has to be brought back and registered again, so it is worth knowing at handover whether that particular vehicle works that way.

Spare Car Key Duplication

In the van

  • Key duplicating machine
  • Diagnostic port programming interface
  • Deburring file
  • Proximity fob shell
  • Key gauge and calipers

What affects the quote

Same fees day, night or weekend

  1. 1Sourcing 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.

  2. 2Fob battery and physical condition

    A fob that needs a fresh battery or shows cracking or water exposure adds a small amount of extra work beyond programming a key that is otherwise in good shape.

  3. 3Scheduling more than one vehicle together

    Two vehicles booked into the same visit, such as a household's pair of cars, are generally more efficient to handle together than arranging two separate appointments on different days.

What to have ready

0 of 3 ready

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Spare Car Key Duplication: questions

How should I store the spare once I have it?

Somewhere other than inside the vehicle, since a spare kept in the glovebox solves little if it is the vehicle itself that becomes inaccessible. A bag that travels separately, a drawer at home, or a trusted family member all work. A passive proximity spare also benefits from a signal-blocking pouch during storage, since that kind of fob keeps broadcasting even sitting untouched in a drawer; a standard button-operated remote does not need the same pouch.

What 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.

Is it possible to leave out certain functions on the spare, like remote start?

Yes. A spare can be built to do everything the first key does, or scaled back to just the blade and chip that unlock a door and start the engine, without a remote start button or a trunk release. This is agreed before programming begins and is a deliberate choice rather than a lesser copy, useful for a valet, a young driver, or anyone the household wants kept to essential access.

Car Keys

Two adults discussing a key fob beside a parked car. — Car Lockout Service, Sawlog Bay
Car Lockout ServiceIt is a January morning, minus twenty with the wind, and the key will not enter the door cylinder.

Spare Car Key Duplication near you

These are the services we bring to doors across Sawlog Bay. Residential work covers lockouts, rekeying, lock replacement, deadbolts, smart locks and older hardware brought back to life. Commercial work covers storefront doors, exit devices, closers, master keys and safes. Vehicle key cutting rounds out the list when it is needed.

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