Jesus Moras Nava appeared in court Friday over video from jail. He was arraigned on charges that include manslaughter.
Nava's case will be presented to a grand jury next week.
Authorities say Nava slammed into the back of Leslie Roquez's car on U.S. 395 Wednesday night.
The woman's 7-year-old daughter Teleeya was buckled in a booster seat but was killed at the scene.
Roquez was flown to a Portland hospital where she is now improving.