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How to reset the service indicator on a Smart 451

Model: Smart Smart 451 - Years 2007-2015
Part: Service warning light

Let's see how to reset the service light on a Smart 451: the car must be turned off; press and hold the "ok" button located on the left side of the button and keep it pressed while turning on the instrument panel, with the key or by pressing the "start" button, in order to simply turn on the panel. Continue to hold the button until the display shows the message "service" followed by "reset?" and "press ok to reset". The reset is completed by releasing the button and pressing it briefly to confirm the reset. The light should disappear and show a message like "service performed" or similar. Turn off the panel and turn it back on to verify that the light is off.

Posted on 12 November 2025 by ScegliAuto

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