A judge has given General Motors 30 days to release the decoded contents of a “black box” that recorded data in a 1997 wreck that killed two people.

For more than two years, GM has delayed sharing the information it retrieved from a 1997 GMC Chevrolet Cavalier after the car’s 21-year-old driver, Timothy Langston, and 15-year-old Lee Anderson were killed. A second passenger, Lee’s sister, Alana, 16, suffered a permanent brain injury.