NHTSA Complaint #11463220 — 2020 SUBARU ASCENT

The 2020 Subaru Ascent has had a recall notice for nearly six months now (Manufacturer Recall NumberWRK21 NHTSA Recall Number21V955000). I experience a low frequency sound accompanied by rapid vibration lasting only a second when reapplying acceleration after a brief pause in acceleration. This occurs very inconsistently and not yet something replicable at the dealership. Subaru states they are working on a solution...The local service manager states they will do nothing unless a service light appears on the dash and that the remedy is likely replacement of transmission and they are not going to do that. We occasionally travel in mountain passes. This recall seems serious. Does NHTSA have any control over Subaru to force them to take the recall seriously? Do owners have to be injured or die for appropriate remedy?