Coach Jason Garrett said Carr's mother, Kathy Carr, died Wednesday. Carr was with her in his hometown of Flint, Michigan.
Carr missed the first nine days of camp, and Garrett said he could report over the weekend. The team is off Friday before returning to practice Saturday.
The 28-year-old Carr is going into his third season with the Cowboys after signing as a free agent. He spent his first four years with Kansas City.
AP NFL website: www.pro32.ap.org and www.twitter.com/AP-NFL