2018 Buick Enclave

COLD START, AC UNIT ON, ENGINE AT HIGH IDLE SPEED. PUT CAR IN REVERSE TO BACK OUT OF THE GARAGE. STEPPED ON THE BRAKE PEDAL AND THE CAR KEPT ROLLING. PUMPED THE BRAKE PEDDLE AND APPLIED EXTREME PRESSURE, CAR DID NOT SLOW DOWN. PANICKED THAT I WOULD HIT A WALL, I DROPPED THE CAR FROM REVERSE TO DRIVE. STILL ON HIGH IDLE, THE CAR WOULD NOT STOP EVEN WITH EXTREME PRESSURE APPLIED TO THE BRAKE PEDAL. CAR CONTINUED FORWARD AND HIT A CABINET IN MY GARAGE CAUSING CONSIDERABLE FRONT-END DAMAGE. EVERY THING HAPPENED SO QUICKLY, I COULDN'T UNDERSTAND WHAT HAPPENED AT THE TIME. THE ONLY THING I COULD THINK OF WAS THAT I MUST HAVE DONE SOMETHING WRONG. RESTARTED THE CAR AND ALL FUNCTIONS WERE FINE. THE DAMAGE DID NOT AFFECT THE OPERATION OF THE VEHICLE. I DROVE TO THE DEALER AND I'M WAITING FOR AN ESTIMATE TO REPAIR THE DAMAGE.

WHILE DRIVING THE CAR THE ELECTRONIC PARKING BRAKE TURNED ON (WITHOUT THE DRIVER COMMANDING IT), STOPPING THE REAR WHEELS FROM ROTATING FREELY, MAKING IT VERY DIFFICULT TO DRIVE THE CAR. THE CAR WAS IN MOTION WHEN THIS HAPPENED. THIS HAS HAPPENED 3 TIMES, ON THE SECOND TIME THE DEALER WAS ABLE TO SEE THE PROBLEM AND PERFORMED A "CALIBRATION" BUT THE PROBLEM HAPPENED AGAIN ABOUT 1 MONTH LATER (LAST NIGHT 7/23/19) AND LEFT THE CAR STUCK IN THE MIDDLE OF AN INTERSECTION, REQUIRING A TOW TRUCK TO MOVE THE VEHICLE - WE TOOK THE CAR TO THE DEALER. THE CAR IS CURRENTLY AT THE DEALER AWAITING A DIAGNOSIS. I HAVE ALSO CONTACTED GM REPORTING THE PROBLEM BUT THEY ARE SAYING WITHOUT SEEING THE PROBLEM THEY WON'T BE ABLE TO DO ANYTHING. THIS IS A RELATIVELY NEW CAR, 2018, BOUGHT IN MARCH 2018 AND HAS 24500 MILES. PRESSING THE PARKING BRAKE RELEASE BUTTON DID NOT RELEASE THE PARKING BRAKE WHEN THE PROBLEM HAPPENED, NOR DID THE AUTOMATIC BRAKE RELEASE PROCESS WORK. THERE WAS AN ERROR MESSAGE ON THE DASHBOARD REPORTING "SERVICE PARKING BRAKE"

DURING NORMAL COMMUTE, VEHICLE BEGAN BUCKING BADLY, WOULD NOT ACCELERATE AND BEGAN ROLLING BACKWARDS. CHECK ENGINE LIGHT ILLUMINATED. SHUT VEHICLE DOWN, RESTARTED, AND THE PROBLEM SEEMED TO CLEAR. BROUGHT VEHICLE TO DEALERSHIP, FOUND CODES P0011, P0014, P0021 AND P0024 SET. DEALERSHIP CONTACTED GM, WHO ACKNOWLEDGED THE ISSUE BUT OFFERED NO FIX. THEY ARE STILL STUDYING THE ISSUE AND HAVE NO RESOLUTION. DEALERSHIP CLEARED CODES AND RELEASED VEHICLE BACK TO US. ISSUE MAY RETURN AT ANY TIME. HOW CAN I TRUST MY FAMILY IN A VEHICLE THAT MAY SUDDENLY, WITHOUT WARNING, BEGIN BUCKING, STOP ACCELERATING AND CAUSE AN ACCIDENT? THIS IS AN UNSAFE CONDITION THAT GM NEEDS TO ADDRESS. I AM DISAPPOINTED THAT THEY HAVE NO RESOLUTION. DEALERSHIP REFERENCED BULLETIN PIP5569E, SO GM ACKNOWLEDGES THE ISSUE. I FOUND REFERENCES FROM ALMOST A YEAR AGO TO THIS ISSUE VIA GOOGLE - THAT'S VERY DISCONCERTING THAT, IN THIS TIME, GM CANNOT IDENTIFY A FIX.

I DROVE OVER SOME METAL COVERING OF A POT HOLE OR OTHER TYPE OF HOLE ON LEXINGTON AVENUE AND ABOUT 100TH STREET IN NYC TODAY. WHEN I DROVE OVER THE METAL COVERING THE CAR STOPPED. THIS IS THE AVENIR MODEL WHICH HAS AUTO STOP. THANKFULLY, THE CAR BEHIND ME STOPPED AND DIDN'T HIT ME. I WILL TAKE THE CAR IN TO BE EXAMINED BUT I THINK IT'S A MALFUNCTION OR ISSUE WITH THE AUTO STOP. WHEN I CALLED THE DEALER, THEY SAID IT WAS NOT THE CAR'S FAULT. I WANTED TO REPORT IT IN CASE THERE ARE OTHER COMPLAINTS CONCERNING SIMILAR ISSUES. THE DEALER CLAIMS THAT THEY HAVEN'T SEEN THIS ISSUE.

THERE ARE TWO ISSUES: WHILE BACKING UP THE CAR, ESPECIALLY DOWN A HILL, THE BRAKES DO NOT WORK/ENGAGE TEMPORARILY. EVENTUALLY THE BRAKES ENGAGE, BUT YOU TRAVEL FURTHER THAN YOU INTEND. THE "SERVICE BRAKE SYSTEM" LIGHT APPEARS ALSO. THIS IS AN INTERMITTENT PROBLEM. THE SECOND BRAKING ISSUE IS THAT THE EMERGENCY BRAKE WILL ENGAGE WITHOUT THE BUTTON BEING PRESSED. IT JUST HAPPENS AND IT THE EMERGENCY BRAKE IS DIFFICULT TO TURN OFF, THE CAR MAY NEE TO BE TURNED OFF ON BACK ON TO FIX. THE "SERVICE EMERGENCY BRAKES" LIGHT APPEARS. THIS HAS HAPPENED WHILE BACKING UP AND IN FORWARD IN NORMAL DRIVING CONDITIONS.

I WAS STOPPED AT AN INTERSECTION AT A TRAFFIC LIGHT & WHEN THE LIGHT TURNED GREEN, I TURNED LEFT & I'M UNCERTAIN IF MY EMERGENCY BRAKES KICKED ON OR IF MY CAR SIMPLY STALLED OUT, BUT MY CAR SUDDENLY WOULD NOT MOVE. MY PURSE, IN THE PASSENGER SEAT FLEW FORWARD & HIT THE FLOOR OF THE VEHICLE. THE CAR BEHIND ME AT THE LIGHT NEARLY REAR ENDED ME, BUT FORTUNATELY DID NOT. WE BROUGHT THE VEHICLE TO JIM ELLIS BUICK TO BE SERVICED, BUT THEY SAID IT APPEARED FINE & WAS CONFUSED. I DEFINITELY WAS NOT IN ANY DANGER OF HITTING ANYTHING WHEN TURNING AT THE INTERSECTION. THIS INCIDENT HAS MADE ME UNEASY WHEN OPERATING MY CAR.

TL* THE CONTACT OWNS A 2018 BUICK ENCLAVE. WHILE THE VEHICLE WAS AT A STOP, IT STALLED AND HESITATED TO MOVE. THE CONTACT STATED THAT THE AUTOMATIC STOP FEATURE ON THE VEHICLE CAUSED THE FAILURE. THE VEHICLE WAS TAKEN TO CANNON CHEVROLET BUICK CADILLAC (100 N THACKER LOOP, OXFORD, MS 38655, (662) 550-4208) WHERE THE CONTACT WAS INFORMED THAT THE VEHICLE WAS BUILT WITH THE AUTOMATIC STOP FEATURE AND THERE WAS NO REMEDY TO REPAIR THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND INFORMED THE CONTACT THAT THERE WAS NO REMEDY. THE FAILURE MILEAGE WAS APPROXIMATELY 3,500. CONSUMER STATED THE ENGINE AUTO STOP FEATURE CAUSES ENGINE TO GO DEAD EVERY TIME I COME TO COMPLETE STOP. ENGINE STARTS AFTER BREAK IS RELEASED. ON 9/22/18 ENGINE STOPPED WHILE CROSSING A 4 LANE HIGHWAY. UPDATED 10/26/18*JP