On 28/04/2018 09:41, Nick Finnigan wrote:

Â*(Engine diagnostic or service warning light is usually easier to clear).


You don't normally need any equipment to clear a service warning light.
In most cases its hold a particular button(s) in while turning the
ignition on/off. Google will probably tell you which if the
dealer/manual won't.

Example for an astra..

Turn the ignition on, one position before starting engine.

Press MENU button until on the display will appear vehicle information menu.

Rotate the button which has on it two arrows one up one down, is located
next to the MENU button, until message Remaining oil life is displayed.

Press and hold button SET/CLR, press brake pedal and hold them for about
15 seconds.

Release SET/CLR button and brake pedal, switch ignition off.