NHTSA Complaint #10863599 — 2014 GMC ACADIA

THE CAR HAS UNPREDICTABLY AND REPEATEDLY GONE INTO A REDUCED ENGINE POWER STATE AND SUBSEQUENT STALL ON AT LEAST 8 OCCASIONS NECESSITATING AN EMERGENCY PULL OVER. THE FAILURE OCCURRED 6 TIMES WHEN SLOWING TO TURN OR APPROACHING A LIGHT/STOP SIGN AND TWICE ON THE HIGHWAY AT SPEEDS IN EXCESS OF 60 MPH. MESSAGES AT THE TIME OF THE ISSUE HAVE VARIED BUT CONSISTENTLY INDICATE ENGINE ISSUE, REDUCED ENGINE POWER. VARIABLY WE WILL SEE MESSAGES ABOUT STABILIZATION CONTROL, TRACTION CONTROL BEING OFF OR NEEDING TO BE CHECKED. WE HAVE AVOIDED ACCIDENTS ON MULTIPLE OCCASIONS. GM HAS BEEN UNABLE TO IDENTIFY AND CORRECT THE ISSUE ON REPEATED VISITS NOR CAN THEY GUARANTEE THAT IT WON'T HAPPEN AGAIN. SINCE THE CAR LOSES ENGINE POWER AND STALLS BOTH AT HIGHWAY AND SLOWER SPEEDS, IT PRESENTS AN EXTREME SAFETY HAZARD NOT ONLY TO OCCUPANTS OF THE CAR BUT TO SURROUNDING VEHICLES. WE REFUSE TO HAVE THE CAR ON THE ROAD GIVEN THE ENORMITY OF THE RISK ASSOCIATED WITH DRIVING IT AT THIS POINT. GM WAS INITIALLY RESPONSIVE TO OUR CONCERNS AT THE FIRST VISIT TO THE DEALERSHIP BUT HAS NOT RETURNED THREE SEPARATE CALLS OVER THE PAST THREE WEEKS. FORUMS ON-LINE REGARDING THE ACADIA AND SEVERAL OTHER MODELS SHOW THAT MANY OTHER PEOPLE HAVE BEEN EXPERIENCING THIS SAME ISSUE OVER MULTIPLE MODEL YEARS. GM NEEDS TO RESOLVE THE CAUSE BEFORE SOMEONE IS KILLED.