NHTSA Complaint #11297826 — 2017 GMC ACADIA

WHEN THE CAR IS SHIFTED FROM A DRIVING GEAR OR NEUTRAL INTO PARK, SOMETIMES THE CAR WILL NOT REGISTER THAT IT HAS ACTUALLY SHIFTED INTO PARK. A WARNING SHOWS UP ON THE DASH THAT SAYS "ACTION REQUIRED, SHIFT TO PARK" EVEN THOUGH IT IS IN PARK. THE CAR WILL NOT TURN OFF DURING THIS WARNING, SO YOU HAVE TO SHIFT IT BACK AND FORTH FROM DRIVE TO PARK UNTIL IT FINALLY REGISTERS PARK. SOMETIMES IT HAPPENS THE NEXT TRY, SOMETIMES IT WILL TAKE 50. THERE HAVE BEEN TWO OCCASIONS WHEN ATTEMPTING TO PARK ON A SLOPE THAT THE CAR STARTED TO ROLL, ONLY A FOOT OR TWO, BUT THEN THE EMERGENCY BRAKE AUTOMATICALLY TURNED ON THE BRING THE CAR TO A STOP. THE CAR HAS BEEN IN FOR SERVICE MULTIPLE TIMES AND THEY HAVE BEEN UNABLE TO FIND A FIX AT THIS TIME.