2017 GMC Acadia

THE ADAPTIVE CRUISE CONTROL (ACC) IN MY 2017 ACADIA DENALI WILL SHUT OFF AND EVEN CAUSE THE VEHICLE TO BREAK FOR NO REASON. THIS HAS HAPPENED NUMEROUS TIMES, EVEN WITH NO OTHER VEHICLE ON THE ROAD OR OBSTACLES IN THE ROAD. WHEN IT HAPPENS THE ACC WILL SHUT OFF, YOU WILL HEAR TWO DISTINCT CHIMES AND YOU WILL SEE A MESSAGE SAYING, 'ADAPTIVE CRUISE CONTROL DISENGAGED'. AFTER THIS HAPPENS YOU WILL NOT BE ABLE TO REENGAGE THE ACC AND IF YOU TRY THE VEHICLE WILL DISPLAY A MESSAGE THAT SAYS 'TEMPORARILY UNAVAILABLE.' I HAVE HAD IT TO THE DEALERSHIP NUMEROUS TIMES AND THEY HAVE STATED THEY DON'T KNOW WHY IT WOULD HAPPEN, AND CANNOT DO ANYTHING UNLESS THEY CAN DUPLICATE IT. IT HAPPENS A LOT BUT THE DEALERSHIP AND GMC SAY THERE IS NO PROBLEM. THE FIRST TIME THIS HAPPENED IT ALMOST CAUSED MY WIFE TO WRECK, SINCE THE ACC SHUT OFF AND APPLIED BRAKES WITH NO OTHER CAR ON THE ROAD, BADLY STARTLING HER, AND SHE THOUGHT SHE HAD HIT SOMETHING. I EVEN HAVE A VIDEO OF THE ACC SHOWING 'TEMPORARILY UNAVAILABLE' AFTER ONE OCCASION IT SHUT OFF AND SLOWED THE VEHICLE. IN THIS INSTANCE THERE WERE NO CAR IN FRONT OF ME OR ON EITHER SIDE, BUT THERE WAS ONE BEHIND ME WHO I AM SURE WAS NOT HAPPY WHEN THE VEHICLE IN FRONT OF HIM BRAKED FOR NO REASON. A GMC REPRESENTATIVE TOLD ME I CAN HAVE ALL THE VIDEO I WANT, BUT IT 'DOESN'T MATTER AND WON'T CHANGE ANYTHING'. THE DEALERSHIP DID DO A COMPLETE DIAGNOSTIC ON ONE OCCASION AND FOUND EVIDENCE THAT THE ACC HAD SHUT OFF, BUT THE CODE DID NOT SAY WHY IT SHUT OFF. THIS HAS HAPPENED AT DIFFERENT SPEEDS RANGE FROM 55 TO 75 MPH. WE HAVE HAD IT HAPPEN THREE TIMES IN A 30 MINUTE PERIOD AND DROVE FOR A MONTH WITHOUT IT HAPPENING. THIS CAUSES AN UNSAFE DRIVING EXPERIENCE AND SHOULD BE FIXED OR THE VEHICLE REPLACED. I HAVE FOUND OTHER PEOPLE ONLINE WHO HAVE EXPERIENCED THIS, BUT THERE ARE NOT ENOUGH OF US TO WARRANT GMC DOING ANYTHING.

HIGH HORN EFFORT - HORN DOES NOT ACTIVATE WHEN PRESSED ON. DRIVER HAS BEEN UNABLE TO NOTIFY OTHER CARS COMING INTO THEIR LANE. CONCERNED THAT THEY WILL BE UNABLE TO AVOID AN ACCIDENT. TOOK DELIVERY OF VEHICLE ON 01SEP2017 WITH THIS AS A KNOWN ISSUE. HAVE NOT HAD ANY RESOLUTION UNTIL VEHICLE WENT INTO SERVICE AROUND 09JAN18. BULLETIN ISSUED TO REPLACE WIRE HARNESS. THIS NEW WIRE HARNESS DID NOT IMPROVE THE CONDITION AT ALL - MAY EVEN BE WORSE THAN BEFORE. THIS IS A SAFETY ISSUE - GM NEEDS TO ADDRESS THIS IMMEDIATELY. THIS IS EITHER DUE TO THE DRIVER AIRBAG CUSHION PACK HEIGHT OR WIRE HARNESS LIMITING HORN TRAVEL.

AS MUCH AS I LOVE THE VEHICLE AS A WHOLE, IT UNFORTUNATELY HAS THE WORST HEADLIGHTS I HAVE EXPERIENCED IN ANY VEHICLE THAT I HAVE EVER DRIVEN. AS SOMEONE WHO HAS PERFECT VISION, I OFTEN FIND MYSELF SQUINTING TO SEE THE ROAD AHEAD OF ME AND VARIOUS SIGNS. IT HAS GOTTEN TO THE POINT WHERE I HAVE RESORTED TO DRIVING WITH MY HIGH BEAMS ON, JUST SO I CAN SEE WHERE I'M GOING IN CITY STREETS, HIGHWAY DRIVING, AND MAKING TURNS. I'VE NEVER HAD THIS ISSUE WITH ANY OTHER VEHICLE THAT I HAVE DRIVEN AND THE UNFORTUNATE THING IS THAT MY FATHER HAS NEARLY THE SAME IDENTICAL VEHICLE AS ME AND IS EQUALLY DISSATISFIED WITH THE HEADLIGHTS. I WOULD CONSIDER THESE AS DANGEROUS AS ANYTHING TO DRIVER, PEDESTRIAN, AND PROPERTY RELATED SAFETY. I WOULD STRONGLY URGE THAT IF GM DOES NOT STEP UP AND CORRECT THIS DANGEROUS OBSTACLE TO MY LIFE, THEN I WOULD STRONGLY URGE AN INVESTIGATION AND AN IMMEDIATE RECALL OF THIS VEHICLE BY THIS ORGANIZATION.

THE HEADLIGHT HIGH BEAM LIGHT PATTERN IS A VERY DIM AND NARROW FOCUSED BEAM AND DOES NOT ALLOW ENOUGH SIDE TO SIDE ILLUMINATION. THE LEFT AND RIGHT SIDE LIGHTING IS VIRTUALLY NON-EXISTENT ON WET ROADS WHEN THE HIGH BEAMS ARE ON. THE HIGH BEAMS ALSO CONVERGE TO A SMALL NARROW SPOT ON THE ROADWAY. THE LACK OF EFFECTIVE LEFT AND RIGHT SIDE ROAD LIGHTING IS A SAFETY ISSUE AS IT IS EXTREMELY DIFFICULT TO SEE PEOPLE OR OBJECTS.ON THE SIDE OF THE ROAD. ALSO, THE LOW BEAMS LACK SUFFICIENT.BRIGHTNESS ALTHOUGH THE LEFT AND RIGHT SIDE LIGHT PATTERN IS SUFFICIENT. ALTHOUGH MY COMPLAINT WAS ESCALATED TO A GMC SENIOR ADVISOR, NO ACTION WAS TAKEN BY GMC. THE ADVISOR STATED, "WORKS AS DESIGNED". NO ALTERNATIVE BULB OR AFTER MARKET LIGHTING WAS RECOMMENDED BY GMC AS I WAS TOLD THIS WOULD VOID THE WARRANTY. THE SAFETY CONCERNS MY FAMILY AND I FEEL ABOUT THE VEHICLES HEADLIGHTS WERE DISMISSED BY THE COMPANY.

2 INSTANCES WITHIN A 2 WEEK PERIOD. ON 12/13/2017 VEHICLE IS BEING DRIVEN AND ENGINE POWER IS LOST AND CAR TURNS OFF WE HAD TO PULL OVER SIDE OF THE ROAD WHEN TRYING TO RESTART THE CAR IT SPUTTERS AND WONT START.. 2ND INSTANCE ON 12/24/2017 CAR WAS ONCE CAR WAS PUT IN GEAR IT STALLED WOULD NOT RESTART OR EVEN TURN OVER. DEALER REPLACED BATTERY AND FUEL PUMP REGULATOR MODULE THE 1ST TIME. 2ND TIME DEALER DOES NOT KNOW WHAT THE PROBLEM IS.

I WAS DRIVING FOR APPROXIMATELY 20 MILES ON A HIGHWAY WITH MY WINDSHIELD WIPERS IN THE INTERMITTENT POSTION. THERE WAS A LIGHT SNOW COMING DOWN. THE WIPERS WORKED UP TO THIS TIME. THE DRIVER SIDE WINDSHIELD WIPER STOPPED WORKING. THIS AFFECTED VIABILITY DRAMATICALLY. IT WOULD HAVE BEEN WORSE WITH HEAVIER SNOW. I TOOK IT TO THE DEALER AND THEY FOUND THE SCREW HAD LOOSENED AND THE WIPER MOTOR AND WINDSHIELD WIPER WERE DISCONNECTED.

WINDSHIELD CLEANER NOZZLE SPRAYS TOO LOW ONTO WINDSHIELD.WHEN TRYING TO CLEAR SALT SPRAY WIPER JUST PUSHES FLUID DOWN AND DOES NIT CLEAN SPRAY ADVERSELY AFFECTING VISIBILITY WHILE DRIVING ON HIGHWAY.BROUGHT TO DEALER TO HAVE CHECKED,THEY AGREED THAT THERE US A PROBLEM.SAID THEY WILL CHECK FOR ANY BULLETINS ON PROBLEM.NOZZLES ARE NOT ADJUSTABLE AND ARE MADE OF SOLID PLASTIC. ALSO CHECKED ANOTHER ACADIA ON LOT WITH SAME RESULTS.GMC SHOULD FIX THIS PROBLEM BEFORE THER IS AN INCIDENT.

HORN IS EXTREMELY DIFFICULT TO DEPRESS. SO DIFFICULT IN FACT, THAT MOST OF THE TIME IT IS INOPERABLE IN NEEDED SITUATIONS. WE HAVE REACHED OUT TO THE DEALERSHIP WHO INFORMED US TO CONTACT GMC WHO THEN DIRECTED US BACK TO THE DEALERSHIP WHO SENT US BACK TO GMC. AFTER 6 MONTHS OF NO RESPONSE WE WERE FINALLY TOLD BY GMC THAT THE UNDERSTAND IT IS HARD TO PRESS BUT THERE IS NOTHING THEY ARE PLANNING ON DOING ABOUT IT AT THIS TIME. I EXPLAINED THAT THIS IS A SERIOUS SAFETY ISSUE AND WE ARE UNCOMFORTABLE DRIVING THE VEHICLE.