Two of her sisters and her 8-month-old nephew were killed when they were caught in the train's path.
The judge said he will allow let Alvarez-Navarrette to explain her absence if she returns to court before police track her down.
Arrest warrant issued in deadly Metra crash
ELGIN Epifania Alvarez-Navarrette failed to appear in court last week on reckless homicide charges.
She's accused of driving around crossing gates in Elgin in December of 2006.
