Switch on the contact of your Citroen C4 Picasso but without starting the engine in the same way as before. Push in as much as possible the accelerator pedal. Then press 3 times the brake. Remove the ignition. Re-insert the contact in order to restart your vehicle. Normally the LED should turn off at the same time as the others. Hi All, I have just tried to reset a low additive warning on a C4 Grand Picasso and it keeps coming up "Erasing of faults failed", any ideas?. Also, the service counter, which increases by 1 each time you clear faults has a limit of 50, what happens when you get to 50 - does it self destruct? Reset service light (where applicable) Stamp service book: Interim Service 08/09/2021 CITROEN - C4 PICASSO. Great and convinient service. Mrs S. Gweshe - Poole Citroen C4 and DS4 Online Support with user help forums, FAQ's and Technical guides C4 DS4 Service Reviews; Resources. C4 Picasso 1.6HDI ETG6 2014 drops to Resetting a mechanical odometer to zero on Citroen C4 Picasso 2: Although they are becoming progressively rare, mechanical odometers are the easiest to tamper with, in reality, it was enough to simply find the cable of the meter, disconnect it, and plug a drill on it to produce it turn upside down and raise or lower the mileage of its Citroen Press the start stop button to turn in the ignition then press and hold the spanner button it'll count down How To Reset Service/Spanner Light On Citroen C4 Picasso (2013-2021) Turn off the ignition Make sure your vehicle is stopped completely. Press and hold the Spanner button. Turn on the ignition but don’t start the engine. Continue to hold down the Spanner button. Sur cette vidéo voici la procédure à effectuer pour une remise à zéro du témoin de vidange après avoir effectué celle-ci, cette procédure nécessite pas d’ord U6AyN.