2015 Volkswagen Jetta Cruise Control Problems

WHILE CRUISE CONTROL IS ON AND CONTROLLING THE VEHICLE SPEED, THE SPEED SETTING WILL SOMETIMES (I.E. UNPREDICTABLY AND INTERMITTENTLY) INCREASE THE SPEED TO THE CLOSEST 5 MPH INCREMENT WHEN COMMANDED TO DECREASE THE SPEED TO THE CLOSEST 5 MPH INCREMENT. I HAVE BEEN ABLE TO REPRODUCE THIS ERROR DOZENS TO HUNDREDS OF TIMES BUT I CANNOT DISCERN A NOTABLE PATTERN AND THE BEHAVIOR SEEMS UNPREDICTABLE. THIS IS NOT A NEW ISSUE BUT HAS EXISTED SINCE I PURCHASED THE VEHICLE NEW IN 2014. EXAMPLE: I AM DRIVING AND SET THE CRUISE CONTROL TO "ON" TO CONTROL THE VEHICLE SPEED AT 63 MPH. I PRESS THE BUTTON THAT IS SUPPOSED TO DECREASE THE SPEED TO THE NEXT LOWEST MULTIPLE OF 5 (60 MPH) BUT IT WILL INSTEAD INCREASE THE SPEED TO 65 MPH. THE 60 TO 65 MPH RANGE IS SIMPLY AN EXAMPLE AND THE ISSUE EXISTS AT ALL SPEEDS, AS FAR AS I CAN TELL.

TL* THE CONTACT OWNS A 2015 VOLKSWAGEN JETTA. THE CONTACT STATED THAT WHEN THE ACCELERATOR PEDAL WAS DEPRESSED, THE VEHICLE HESITATED TO RESPOND WITHOUT WARNING. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE FUEL CANISTER FILTER NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED BUT THE FAILURE RECURRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 2,800.

CRUISE CONTROL ERRORS OUT WHEN THE ON OR SET BUTTONS ARE PRESSED. DASH DISPLAYS "ERR". ONCE THIS TAKES PLACE THE ONLY SOLUTION IS TO TOTALLY STOP, REMOVE THE KEY AND RESTART THE VEHICLE. THIS MORNING WAS THE FOURTH TIME THIS WEEK. VEHICLE IS NOW THREE WEEKS OLD AND HAS <250 MILES TOTAL. IT HAS HAPPENED AT SPEEDS OF 35, 45, 55 AND 65 (MY NORMAL COMMUTE ROUTE). WHILE SEARCHING THE INTERNET IT SEEMS THIS IS A COMMON PROBLEM AND HAS BEEN KNOWN FOR MONTHS IF NOT YEARS. WHY ARE THEY STILL PLACING THE DEFECTIVE SYSTEMS ON THE ROAD?