In the wake of Toyota Motor Corp.’s estimated $1.3 billion settlement involving claims of unintended acceleration, the National Highway Traffic Safety Administration continues to push for a rule that would require manufacturers to install “black boxes” in all new cars to record accident data.

In early December, the agency proposed that event data recorders must be installed in all cars made after Sept. 1, 2014, at an estimated cost of $20 per vehicle. The devices capture safety-related data including vehicle speed and whether the brakes were activated in the seconds before a crash.