Reset service light Opel

Find how do you can reset service light or turn off board light maintenance indicator when errors like, oil change, check engine, change intervol of inspection, airbag light, inspection key, when maint reqd, appear on board computer display. For OPEL car models, Opel Astra, Opel Corsa, Opel Signum, Opel Vectra, Opel Agila B, Opel Vivaro, Opel Combo, Opel Movano, Opel Corsa C, Opel Astra G, Opel Astra H, Opel Vectra C.