The 21-year-old woman who cannot be named for legal reasons was visibly upset as she entered pleas of guilty during an arraignment in Tamworth District Court on Friday morning.

Appearing via video link from Silverwater Correctional Centre, the woman pleaded guilty to dangerous driving occasioning the death of her two-year-old girl, on August 17, last year.

The woman also pleaded guilty to dangerous driving causing grievous bodily harm to her 11-month-old son.

Judge Jeffrey McLennan accepted the pleas but was told the agreed facts were not ready to be tendered.

The woman’s solicitor, Stephen O'Reilly, requested the matter be transferred to Sydney for sentence because the woman’s instructing barrister was based there, and his client was being held on remand at a Sydney prison.

Judge McLennan questioned if there was any reason why the case should not be heard in Sydney, but Mr O'Reilly indicated the family did not object to the case being moved.

"In the absence of any competing interests of transferring it to Sydney it is a perfectly good reason," Judge McLennan said, formally refusing bail.

The crown indicated to the court that once a plea was entered to a charge of driving while disqualified, the other sequences would be withdrawn.

The guilty pleas come just days after the 21-year-old was due to stand trial on charges from the fatal crash, near Willow Tree last year.

On Friday, two family members sitting in the back of the courtroom waved to the woman when she appeared on screen and appeared upset as they left the court precinct.  

The woman, who was on route from Gunnedah to the Hunter Valley, allegedly lost control of the sedan before the car left the road and crashed. The impact of the crash claimed the life of the little girl, who police allege was seated in the front seat without a proper restraint.