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How to reset the service light on a Lancia Thesis

Model: Lancia Thesis MK 1 - Years 2002-2009
Part: Service warning light

To reset the service light on a Lancia Thesis, get inside the vehicle and turn on the instrument panel without starting the engine. Locate the reset button for the onboard computer on the dashboard, usually near the rev counter or integrated into the instrument panel. Press and hold the button until the maintenance light flashes or turns off. In some versions, you may need to use the buttons on the steering wheel to navigate to the "Maintenance" or "Service" menu and confirm the reset with the OK button. Turn off and then turn on the instrument panel to verify that the light has indeed been reset.

Posted on 24 September 2026 by ScegliAuto

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