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How do you program the key for the Smart?

Model: Smart Smart 453 - Years: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
Part: Key

Video tutorial

It will be possible to program the new Smart key by inserting the virgin key into the corresponding ignition switch. Once the key has been turned, a diagnostic tool must be connected to the vehicle's OBD port, located under the steering column.

At this point, it will be possible to select the specific car model and its corresponding version: then, you must follow the instructions displayed on the screen to ensure that the new key is coded. After coding, the scanner should be disconnected, confirming that everything is functioning properly.


Posted on 7 December 2025 by ScegliAuto


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    Frequently Asked Questions

    • Smart 1998-2007 - What to do if the key gets stuck in the Smart? Read answer

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