The DS 3 Crossback (D34) 2019-Present brought premium ambition to the supermini-SUV class, riding on the CMP platform with PureTech petrol, BlueHDi diesel and the all-electric E-Tense alongside. On combustion variants the control units expect resetting after servicing. The oil service reset restarts the interval once fresh oil is in, while a maintenance reminder reset covers the wider schedule. New pads call for the brake pad wear reset, a TPMS reset follows tyre pressure changes, and the 12V battery should be registered so the energy management tracks it. Steering angle calibration is performed after alignment. Choose the service reset that suits your 3 Crossback from the procedures shown below.