Refers to the act of stopping or slowing down, often used in driving contexts.
La frenada brusca del autobús sorprendió a todos los pasajeros.
The sudden stop of the bus surprised all the passengers.
La frenada repentina del coche sorprendió a todos los pasajeros, quienes no estaban preparados.
The sudden braking of the car surprised all the passengers, who were not prepared.