Scanning is an imprecise description
People use the word scanning for different concerns about electronic keys. Receiving a radio signal, relaying communication and registering another key are not the same action. A general account should not be treated as a diagnosis of how a particular theft or key fault occurred.
Understand the keyless relay concern
Police guidance explains that relay theft can fool a vehicle into responding as though its keyless fob is close by. Check whether your vehicle has passive entry and what the manufacturer documents about its security. Do not assume every fob has the same vulnerability or that a conventional key makes the whole vehicle immune to theft.
Check ordinary locking behaviour
Confirm that the car is locked using its normal indicators and the owner instructions. If behaviour changes, record the symptoms and seek advice. Do not rely on a general statement that every car flashes the same lights or folds its mirrors when locking.
Review storage and physical precautions
Consider current police and manufacturer recommendations for the vehicle. If using a signal-blocking pouch, ensure the key is in the correct compartment, close it fully and test it as directed. Physical precautions and sensible key storage address different risks; none should be presented as universal protection.
When a key is missing
Explain the loss when asking about a replacement and raise any concern about continued access. Ask which measures can be confirmed for your configuration. Keep the discussion focused on the vehicle and authorised work, rather than attempting to reproduce attack techniques from an online guide.
Related services and enquiries
Compare lost-key replacement with spare-key duplication, or read about key fob programming. Check published price guidance and send your vehicle details.
Source and further reading
West Yorkshire Police: keyless theft guidance. Check the guidance relevant to your own vehicle.