Why all-keys-lost work is different from making a spare

A spare-key job begins with an important advantage: the customer still has an authorised working key. That key helps confirm the type and allows the vehicle to be moved if needed. When every key is lost, none of those assumptions apply.

The vehicle may be locked, the key blade information may need to be established without an original, and the immobiliser may require a specific all-keys-lost procedure. The locksmith also has to take extra care with entitlement because there is no working key in the customer’s possession.

This is why an all-keys-lost quote can be different from the price of “copying a spare”. It is a recovery process rather than simple duplication.

Step 1: provide the vehicle details and exact location

Start with the registration, make, model, year and location. The registration helps identify the correct vehicle generation and likely key system. Tell the locksmith whether the car is locked, where it is parked and whether any physical blade, broken key or old fob is still available.

If you have a photo of the old key from before it was lost, it can be useful for identifying the case style, but it is not a substitute for vehicle data. Two keys can look alike and use different electronics.

Location matters because a mobile locksmith needs to know whether the vehicle is on a driveway, in a multi-storey car park, at work or on a roadside. Access, height restrictions and safety can affect how the job is planned.

Step 2: confirm entitlement to the vehicle

Security-sensitive work should not proceed anonymously. Be ready to provide suitable identification and evidence that you are entitled to the vehicle. The exact evidence can vary by situation—for example, a registered keeper, company vehicle, family vehicle or recently purchased car may involve different paperwork.

If the documents are locked inside the vehicle, explain that before attendance. The locksmith can tell you what can be checked before entry and what should be produced once access is restored. Do not assume a photograph of a registration plate is enough evidence on its own.

Entitlement checks are a feature of a professional service, not an inconvenience. The same capability that helps an owner who has lost every key could be misused if no verification existed.

Step 3: regain access without creating unnecessary damage

If the car is locked, the locksmith may need to gain entry before programming or retrieving vehicle information. The appropriate non-destructive method depends on the vehicle’s lock system and condition.

Avoid breaking glass or using improvised tools unless an emergency service specifically directs it in a genuine safety situation. Modern doors can contain airbags, wiring and expensive trim, and a damaged frame can create lasting wind or water leaks.

AutoKeyChase provides Vehicle Unlocking wherever the vehicle design and lock condition allow a professional non-destructive route.

Step 4: establish and cut the correct blade

Many modern remote and smart keys still include a mechanical blade, either as the main ignition key or as an emergency blade hidden inside the fob. Without the original, the correct cut can be established using vehicle/key information and appropriate locksmith methods for the supported vehicle.

The objective is not to copy wear from an old blade but to create a blade that matches the lock correctly. A poor physical cut can leave a new electronic key that starts the vehicle but does not operate the mechanical door lock when it is needed.

Blade work is only one part of a complete modern key. The transponder or smart-key electronics still need to be correct and authorised to the vehicle.

Step 5: program the new key to the vehicle

The new key must be compatible with the vehicle’s immobiliser system. Depending on the manufacturer and generation, programming may be carried out through diagnostic access, manufacturer-specific security procedures or module-level methods.

AutoKeyChase uses platforms including Zed-Full Plus, Smart Pro, Autel, ACDP, VVDI Prog, VVDI2, VVDI MB, Key Tool Plus, OSCA, R-Link, Tango, Lonsdor and KDX4. Different tools are appropriate for different systems; the list is not a claim that every tool is used on every job.

After programming, the relevant functions should be tested: mechanical access, start authorisation, remote buttons and proximity functions where applicable.

What happens to the missing original key?

If the key was stolen or may be in someone else’s possession, tell the locksmith. The security response can be different from a key that was lost somewhere inaccessible. Depending on the vehicle, programming can include managing which keys remain electronically authorised.

That does not necessarily change the mechanical locks, and the exact options differ by manufacturer. Ask specifically what the procedure will achieve: create a new key, remove an old electronic authorisation, or both.

Police guidance also advises reprogramming keys after buying a used vehicle where previous keys may be unaccounted for. For wider theft-prevention advice, see Police.uk.

How price differs when no original key remains

AutoKeyChase car key services start from £90 where applicable, but an all-keys-lost job can cost more than a spare because it can include entry, blade creation and a different programming route. Smart-key parts and manufacturer-specific procedures can also change the cost.

For an accurate quote, do not ask only “how much for a key?” Send the registration, year, location, whether the vehicle is locked and whether every key is lost. Mention any existing immobiliser or steering-lock fault.

The full pricing factors are explained in How Much Is a Replacement Car Key in the UK?.

How to avoid another all-keys-lost situation

Once the vehicle is running again, consider creating a second key if the replacement job leaves you with only one. A controlled spare gives you a comparison key when diagnosing future faults and usually gives you more options than waiting until the last key disappears.

Store the spare securely and keep it away from the everyday key. If it is a passive keyless fob, use the same key-security precautions, including signal-blocking storage where appropriate.

Keep a record of who has access to each key for family or company vehicles. The most effective all-keys-lost prevention is simply knowing that a second authorised key exists and can be reached.