Ignition switch
a switch in the control system of a vehicle that activates the main electrical systems and/or the engine
en-GB/ɪɡˈnɪʃn ˈswɪt͡ʃ/
en-US/ˌɪɡˈnɪʃən ˈswɪt͡ʃ/
a switch in the control system of a vehicle that activates the main electrical systems and/or the engine