: Leo plugs the Renolink interface into the car's OBD2 port. This specialized tool communicates directly with the vehicle's onboard computer to sync new electronic signatures.
Renolink will start a 30-second countdown. Hold the new key card against the "card reader" area (usually near the start button or in the card reader slot on the dashboard). Press the lock or start button if prompted.
However, for the price-to-feature ratio, Renolink remains the top choice for DIY mechanics and small garages.