Reset service light Land Rover

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 LAND ROVER car models, Land Rover Range Rover, Land Rover LR2, Range Rover Sport, Land Rover Freelander 2, Land Rover Discovery 3, Land Rover LR3.