2017 GMC Acadia

VEHICLE DISPLAYS "ACTION REQUIRED - SHIFT TO PARK" IN THE DASHBOARD INFORMATION CENTER WHEN THE GEAR SHIFT IS PUT INTO PARK AND THE IGNITION PUSH BUTTON IS PUSHED TO TURN THE VEHICLE OFF. THE ALARM SOUNDS REPEATEDLY AND THE AUXILIARY POWER STAYS ON. IF THE VEHICLE IS EXITED ALARMS SOUND AS IF THE KEY FOB WERE LEFT IN THE VEHICLE. IN ADDITION, THE AUXILIARY POWER STAYS ON (INCLUDING THE HEADLIGHTS IF IN AUTO MODE) INDEFINITELY. MY DEALERSHIP IS UNABLE TO FIX THIS PROBLEM FOR NEARLY TWO MONTHS AND HAS OTHER CUSTOMERS WITH THE SAME PROBLEM. GMC CUSTOMER ASSISTANCE HAS PROVIDED NO HELP.

TL* THE CONTACT OWNED A 2017 GMC ACADIA. WHILE DRIVING WITH THE CRUISE CONTROL SET AT 60 MPH, THE CONTACT ATTEMPTED TO DEACTIVATE THE CRUISE CONTROL, BUT WAS UNSUCCESSFUL. THE CONTACT ALSO ATTEMPTED TO DEACTIVATE THE CRUISE CONTROL BY DEPRESSING THE BRAKE PEDAL, BUT THAT FAILED AS WELL. THE CONTACT HAD TO STEER INTO A CONCRETE BARRIER TO STOP THE VEHICLE, WHICH CAUSED ALL THE AIR BAGS TO DEPLOY. THE CONTACT SUSTAINED INJURIES TO THE LEFT SHOULDER, RIBS, AND A BROKEN TOOTH, BUT DID NOT SEEK MEDICAL ATTENTION. POLICE REPORT NUMBER: 2018809633 WAS FILED. THE VEHICLE WAS TOWED TO AN UNKNOWN DEALER WHERE IT WAS DEEMED A TOTAL LOSS. THE CAUSE OF THE CRUISE CONTROL FAILURE WAS NOT DETERMINED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND CASE NUMBER: 8-4427699189 WAS OPENED. THE FAILURE MILEAGE WAS 27,200.

THIS ISSUE HAS HAPPENED 3 TIMES NOW AND IS BECOMING A SAFETY CONCERN FOR MY FAMILY AND I AND FOR OTHERS ON THE ROAD. I PURCHASED THE CAR BRAND NEW IN MAY 2017 AND THE ISSUE OCCURED FOR THE FIRST TIME ON OCTOBER 02, 2017. SECOND TIME WAS FEBRUARY 15, 2018 AND THE THIRD TIME HAPPENED AROUND EARLY APRIL 2018. WHILE DRIVING AT A SLOW SPEED (ENTERING A PARKING LOT, IN THE MIDDLE OF AN INTERSECTION WHEN I WAS ABOUT TO MAKE A LEFT TURN ON A GREEN LIGHT, AND WHILE DRIVING IN A PARKING LOT AFTER GETTING GAS) THE CAR MADE A GRINDING/CLUNKING SOUND AND WAS BROUGHT TO A VERY ABRUPT STOP. I TRIED TO PRESS THE GAS BUT THE CAR WOULD NOT MOVE. I CHANGED THE GEAR FROM DRIVE TO PARK AND THEN DRIVE AGAIN AND WOULD STILL NOT MOVE. I TURNED THE CAR OFF AND THEN BACK ON AND STILL NOTHING. I ENDED UP FIGURING IT OUT BY PRESSING THE PARKING BREAK BUTTON 1-2 TIMES AND WAS THEN ABLE TO PROCEED TO DRIVE. IT SEEMS AS THOUGH SOMETHING MAY HAVE TRIGGERED THE PARKING BRAKE BUT WHILE I WAS IN DRIVE AND WHILE THE VEHICLE WAS MOVING. I WAS ALMOST REAR ENDED WHEN THIS HAPPENED IN THE INTERSECTION AND ALSO DURING THE TIME I WAS UNABLE TO MOVE IN THE INTERSECTION, MY LIGHT HAD CHANGED TO YELLOW AND THEN RED AND ONCOMING TRAFFIC WAS HONKING BECAUSE THEY COULD NOT GO ON THEIR GREEN LIGHT DUE TO ME BEING STOPPED IN THE INTERSECTION. IT WAS VERY SCARY AND DANGEROUS AS IT ALMOST CAUSED AN ACCIDENT 2 OUT OF THE 3 TIMES IT HAS HAPPENED. I TOLD SERVICE DEPT AT THE DEALERSHIP ABOUT IT TWICE. THEY HAVE "LOOKED INTO IT" ONE TIME BUT SINCE THEY WERE NOT ABLE TO REPLICATE THE ISSUE (OBVIOUSLY), THERE IS NOTHING THEY CAN DO. I AM CONCERNED ABOUT MY FAMILIES SAFETY IF THIS CONTINUES TO HAPPEN.

WHEN THE VEHICLE IS IN PARK AND YOU TRY TO TURN IT OFF WITH THE START/STOP BUTTON AN ON DASH ERROR CODE OF "SHIFT TO PARK" APPEARS EVEN THOUGH THE VEHICLE IS CLEARLY IN PARK. YOU ARE NOT ABLE TO TURN THE VEHICLE OFF. I TOOK THE VEHICLE IN FOR SERVICE ON 6/4/18 AND WAS TOLD THAT GM IS AWARE OF THE ISSUE HOWEVER THEIR ENGINEERS HAVE NOT FOUND A SOLUTION. THIS CURRENTLY IS FORCING ME RESTART THE ENGINE, PUT MY CAR IN REVERSE, SHIFT BACK IN DRIVE, TRY RE PARKING AND TURNING OFF AGAIN REPEATING THE PROCESS UNTIL IT EVENTUALLY TURNS OFF. I DO NOT KNOW IF MY CAR IS TRULY IN GEAR OR NOT. I'M AFRAID THAT IT MIGHT CAUSE A DANGEROUS SITUATION.

I WENT TO A LOCAL DEALER AND COMPLAINED ABOUT A VIBRATION/RUMBLE WHILE DRIVING. IT HAPPENED MOSTLY AROUND 1200-1700 RPM. THE SERVICE MANAGER HEARD OF THE PROBLEM. THERE WAS A MANUFACTURERS BULLETIN OUTLINING THE PROBLEM AND SUGGESTING A FUEL MANAGEMENT SOFTWARE UPGRADE. THIS WAS DONE. THE BULLETIN ALSO APPLIED TO CADILLAC XT5, WHICH IS ON A SHARED PLATFORM WITH MY 2107 GMC ACADIA DENALI AWD. THERE ARE NOW SEVERAL NEW RPM RANGES WHEN THE VIBRATION/RUMBLE OCCURS IN ADDITION TO THE OLD 1200-1700. NOT ONLY HAS THE OLD PROBLEM RE-APPEARED BUT THERE ARE CERTAIN CONDITIONS ABOUT 1500 RPM WHEN I AM STARTING OUT FROM A STOP FOR ABOUT 50 FEET WHERE THE PROBLEM SEEMS TO ALMOST STALL OUT AND THEN WITH A BIG CLANK (LIKE DOWN SHIFTING OR TRANSMISSION IS SLIPPING AND THEN SUDDENLY ENGAGES) AND TAKES OFF. I CANNOT HELP BUT THINK THERE IS GOING TO BE A MECHANICAL BREAKDOWN OF SOMETHING DUE TO THE SUDDEN ENGAGEMENT AND CLANK OR EVEN STALLING OUT IN TRAFFIC, IF THIS PROBLEM IS NOT FIXED. I CONTACTED THE DEALER ONCE AGAIN BUT HAVE NOT HEARD BACK YET.

A MESSAGE SHIFT TO PARK KEPT APPEARING WHEN THE CAR WAS IN PARK AND SHUT OFF. THEN I PUT THE CAR IN REVERSE AND THE ENTIRE CARE LOCKED UP. (A MESSAGE FROM GMC -GENERAL MOTORS LLC (GM) IS RECALLING CERTAIN 2018 CHEVROLET EQUINOX AND GMC TERRAIN VEHICLES AND 2017-2018 GMC ACADIA VEHICLES. THE RIGHT FRONT INTERMEDIATE DRIVESHAFT MAY FRACTURE AND SEPARATE WHILE DRIVING.)