2015 GMC Acadia

IST TIME-CAR STATIONARY-STARTED CAR AND IT STARTED SHAKING-TRACTIONARY CONTROL WARNING CAME ON-TURNED CAR OFF-WAITED A FEW MINUTES AND TURNED IT ON AND IT WAS FINE -THE NEXT DAY AFTER DRIVIING 250 MILES IT HAPPENED AGAIN AFTER STOPPING FOR A TOLL BOOTH-THE CAR SHUT DOWN WITH THE SAME WARNING-AFTER TWO TRIES IT STARTED AND WE DROVE TO A CHEVROLET DEALER AND THEY REPLACED THE THROTTLE BODY

ON 4/11/18 WE TOOK THE CAR TO THE DEALERSHIP FOR A SIDE DTECTION ALERT. WAS INFORMED THAT THE RIGHT SIDE MODULE NEEDED REPLACED. WE DECLINED SERVICE DUE TO COST OF $628. 01/2019 WE WERE HAVE PROBLEMS WITH THE CAR STARTING. LAST WEEK MULTIPLE WARNING A MESSAGES STARTED APPEAR ON THE DASHBOARD AS THE CAR WAS TRAVELING AND STATIONARY. TOOK THE CAR IN FOR SERVICE AND DIAGNOSES WAS THE RIGHT SIDE DETECTION MODEL HAD SEVERE CORROSION AND THE LEFT SIDE MODEL ALSO HAD CORROSION. PARTS WHERE NOT AVAILABLE SO WE DROVE THE CAR HOME. NEXT DAY SAME ISSUE WITH MULTIPLE WARNINGS AND ALERTS ON THE DASH. MY WIFE WAS ABLE TO MAKE IT HOME AND AFTER TURNING OFF THE CAR IT WOULD NOT START EVEN AFTER CHARGING THE BATTERY. NEXT DAY HAD THE CAR TRANSPORTED TO THE DEALERSHIP. AFTER DISCONNECTING THE SIDE SENSOR MODELS, THE CAR RESTARTED AND STARTED FUNCTIONING NORMAL. OBVIOUSLY THIS IS A BIG SAFTEY CONCERN FOR A VEHICLE THAT IS LESS THAN 4 YEARS OLD, LESS THAN 50K MILES, GARAGE KEPT AND WELL CARE FOR.

TL* THE CONTACT OWNS A 2015 GMC ACADIA. THE CONTACT STATED THE VEHICLE STALLED WITHOUT WARNING. THE CONTACT RESTARTED THE VEHICLE, BUT THE FAILURE RECURRED WHETHER DRIVING OR PARKED. THE CONTACT TOOK THE VEHICLE TO THE DEALER; HOWEVER, THE DEALER WAS UNABLE TO IDENTIFY THE FAILURE AND DIAGNOSE THE VEHICLE. THE VEHICLE HAD NOT BEEN REPAIRED. THE MANUFACTURER STATED THAT FURTHER EVIDENCE REGARDING THE FAILURE WAS NEEDED. THE APPROXIMATE FAILURE MILEAGE WAS 18,860.

AFTER PICKING UP OUR NEW TRUCK WE NOTICED THAT THE VEHICLE'S ENGINE WAS SHORT JUMPING AT LOW SPEEDS, ESPECIALLY WHEN IN TRAFFIC - AT FIRST WHEN THIS OCCURS YOU HAVE TO ALMOST ASK YOURSELF DID I HIT THE GAS PEDAL INSTEAD OF THE BRAKES. AFTER ONLY A COUPLE WEEKS OF OWNERSHIP WE DROPPED OFF OUR NEW VEHICLE TO BE REPAIRED. DEALER 'S GMC CERTIFIED TECHNICIAN HAD TO CONSULT WITH GMC CORPORATE TO HELP TROUBLESHOOT AND THEN DECIDED TO REPLACE THE LOWER AND UPPER ENGINE VALVE COVERS, AND THE TRANSMISSION CONTROL MODULE; WHICH WAS A QUICK FIX THAT LASTED A LITTLE OVER A WEEK. NOW OUR BRAND NEW VEHICLE IS ONCE AGAIN A LEMON AND REPEATING THE ORIGINAL ISSUE. AFTER CONTACTING GMC AND AFTER REQUESTING ANOTHER SAFER NEW VEHICLE SINCE ITS COMMON SENSE THAT A BRAND NEW TRUCK SHOULD NOT HAVE ANY INTERNAL ENGINE OR TRANSMISSION PROBLEMS BEING THAT WE HAVE A FOUR YEAR OLD, TWO YEAR OLD, AND A NEWBORN, I AM A CONCERNED FOR MY FAMILY'S SAFETY; GMC CORPORATE RESPONSE WAS "DON'T YOU THINK THAT 1 CAR IN 300,000 WOULD HAVE AN ISSUE"... AT THE END WE ARE NOT TALKING ABOUT A LOOSE BELT OR WHEEL OUT OF BALANCE, BUT AN INTERNAL PROBLEM WHICH THERE TECH TOLD MY WIFE THAT HE COULD NOT GUARANTEE THAT THE CARE WAS SAFE DURING HIS TEST DRIVE. THE DEALER'S MANAGER RESPONSE WAS "THE CAR IS NOT OUR PROBLEM WHEN IT LEAVES OUR LOT", IT THEN FALLS UNDER THE MANUFACTURE WARRANTY; WHICH MAKES SENSE, BUT ONCE AGAIN WE ARE TALKING ABOUT A BRAND NEW CAR, NOT A CAR THAT HAS SOME USAGE. NOW TWENTY DAYS IN THE SHOP AND ONLY 2,000 MILE ON THE VEHICLE THEY DECIDED TO REPLACE THE TRANSMISSION, BUT STILL CAN'T TELL US WHAT IS WRONG WITH THE VEHICLE; WHICH NOW WHEN BRAKING ON THE HIGHWAY IT DOWNSHIFTS HARD AND ALMOST FEELS LIKE SOMEBODY REAR ENDED YOU.

BAD SHIFTING IN TRANSMISSION WHEN YOU SLOW DOWN OR COME TO A STOP AND TURN RIGHT AND ACCELERATE AT THE SAME TIME. THIS HAPPENS ON THE 2014 AND 2015 MODELS, TRANMISSION WILL STUTTER AND ABRUPTLY SHIFT INTO A LOWER GEAR. ON THE ACADIA FORUMS IT IS DOCUMENTED BY OTHER OWNERS AS WELL (APPROX 30-50 OTHER OWNERS). THE TRANSMISSION NEEDS A REPROGRAM TO ACCOUNT FOR THIS ISSUE. GM APPEARS TO NOT BE DOING ANYTHING ABOUT THIS COMMON ISSUE.