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How to Reset the Service Light on a Smart ForFour

Model: Smart Forfour W454, MK 1 - Years 2004-2006
Part: Warning light – error code

This video tutorial shows the procedure to reset the service light on a Smart ForFour produced from 2004 to 2006. This procedure can be useful if the light remains on after a service. To reset, first switch off the ignition. Then, press the reset button located above the speedometer and turn the ignition back on. After switching on the ignition, wait for about 10 seconds. Once these 10 seconds have passed, the reset will be complete and the light will no longer be illuminated.

Updated on 12 July 2026 by ScegliAuto

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