I'VE GOT THE SAME PROBLEM WITH MY 2019 SILVERADO. BEEN TOWED IN TO SERRA IN JACKSON TN 4 TIMES ONLY HAS 3100 MILES ON IT. THEY HAVE PUT A BRAKE SOLENOID, SHIFTER ASSEMBLY, SHIFTER CABLE AND NOW THEY HAVE IT FOR THE FIFTH TIME AND CANT GET IT TO STICK IN PARK. AFTER THIS WEEK THEY WILL HAVE HAD IT 2 MONTHS OUT OF THE 5 MONTHS I'VE OWNED IT. CAN ANYBODY TELL THESE CERTIFIED TECHS HOW TO FIX THIS.... PLEASE !!!!