How to reset the AdBlue warning light on the Renault Trafic?

Model: Renault Trafic MK 3 - Years: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
Part: AdBlue warning light

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If the AdBlue warning light on the Renault Trafic remains on even after refilling with the additive, it is possible that a programming error has occurred in the AdBlue management unit: this unit is located inside the engine compartment and must be removed and disconnected to perform a diagnosis.

The unit must then be connected to the appropriate diagnostic tool so that all stored errors can be reset correctly; after the reset, reinstall the unit, ensuring everything functions correctly.

Updated on 20 July 2026 by ScegliAuto

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by ScegliAuto

How to reset the AdBlue warning light on the Renault Trafic?

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