Superior Court Judge J. Kevin Chason also denied Fiat Chrysler's motion for a new trial, dismissing arguments that jurors acted irrationally.
Chason ruled that the family of 4-year-old Remington Walden should get $30 million for his death and $10 million for pain and suffering. The ruling was accepted by the family's attorneys and clears the way for Fiat Chrysler Automobiles NV to appeal. A message was left seeking comment from the company.
Walden died after the Jeep Grand Cherokee driven by his aunt in Bainbridge, Ga., was hit from behind in March 2012 and exploded.