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Frequently asked questions about cars and motorcycles

How do you reset the Service light on the Smart Forfour?

Model: Smart Forfour W454, MK 1 - Years 2004-2006
Part: Service warning light

The Service light on the Smart Forfour can be completely reset by pressing and holding the button located at the top left of the instrument panel. You need to keep it pressed while the ignition is off. While continuing to hold the button, insert the ignition key into the ignition switch and turn it to turn on the instrument panel. Once it is activated, you must wait for the light to be reset. At this point, you can release the button and then turn off the instrument panel, verifying that the reset is complete.

Posted on 5 December 2025 by ScegliAuto

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