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AV-SCANNER / IMMO guides / Keys
This guide explains how valet and spare key modes work within a vehicle's immobiliser system, why they matter for security and convenience, and how a lawful owner or their technician can use them correctly. It covers the ownership and authorisation paperwork you must have before any key work begins, the professional routes available for obtaining and programming spare keys, and how to choose a dealer or registered automotive locksmith with confidence. You will learn what happens during a key programming job, how to verify that every key and mode functions as intended, and how to avoid scams while preventing the need for a repeat visit.
Guidance is general and covers many makes. Exact procedures and values vary by model, so confirm them in the factory service information for your vehicle.
Download all 12 sections as a branded PDF to use in the workshop.
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