noun
idling stop; engine stop when idling
Wasei-eigo term for a system or action that automatically stops a vehicle's engine when the vehicle is stationary, such as at traffic lights, to save fuel and reduce emissions.
wasei-eigo (Japanese-coined English), from idling stop
最近の車にはアイドリングストップ機能が付いている。
Recent cars are equipped with an idling stop function.
信号待ちで
The idling stop activated while waiting at the traffic light.