A woman pleaded guilty in the Bendigo Magistrates' Court this month to two counts of assault and one charge of riotous behaviour, for her role in the December 2018 incident.

About 2pm on December 14 that year, a vehicle was chased down Mitchell Street and its occupants were attacked after they came to a stop at a red light at Charing Cross.

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Punches were thrown at a passenger through an open window and the driver was set upon when he got out of the vehicle.

The attack was captured on CCTV.

The woman was 19 at the time of the incident.

Defence lawyer Kimberly Parker told the court she understood there had been an earlier verbal altercation and the woman became involved when her friend was pushed.

Ms Parker said the woman was studying to achieve her Year 12 equivalent and had aspirations to work in the disability sector.

She said the woman had not been in trouble since and her child had been a settling influence on her.

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Magistrate Patrick Southey said the incident was "appalling" but the woman had had no matters before the Magistrates' Court before or since.

"It's just abysmal, like a pack of animals - just disgraceful," Mr Southey said, asking the woman if she would later tell her child that their "mum used to brawl in the streets".

He sentenced the woman to a good behaviour bond, without conviction.

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