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How to Reset the Service Light on an Alfa Romeo 156

Model: Alfa Romeo 156 MK 1 - Years 1997-2007
Part: Service warning light

The car's control unit also includes a sensor that automatically detects when it's time to change the engine oil. However, it can often happen that there is an error in data detection, and a warning light appears on your onboard computer. To reset this light and allow the control unit to re-read the data, it only takes a few seconds. Keep the car's engine off and turn on the ignition only. Locate the hazard light button, positioned just below the radio. Scroll to the right and notice a button located between a "minus" and a "plus". Press and hold it for about thirty seconds, and you're done.

Updated on 2 June 2026 by ScegliAuto

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