GMC Complaints

THE DOOR LOCKS DONT ALWAYS LOCK. MY GRANDSON WAS IN THE BACK SEAT AND FELL ASLEEP, WHILE ASLEEP HE BUMPED THE DOOR HANDLE AND THE DOOR OPENED WHILE WE WERE GOING 50 MPH., LUCKY HE HAD THE SEAT BELT ON. THE DOOR SHOULD NOT HAVE OPENED AS THE LOCK SHOULD HAVE ENGAGED WHEN THE TRUCK IS PUT IN GEAR AND MADE THE DOOR HANDLE INOPERABLE. THE DOOR LOCK ACTUATOR IS THE PROBLEM, THIS WILL BE THE SECOND ONE REPLACED. YOU DONT KNOW THEY DONT WORK BECAUSE THEY MAKE A LOCKING SOUND WHEN ACTIVATED. THEY JUST DONT LOCK, VERY DANGEROUS GLAD HE DIDNT FALL OUT OF THE VEHICLE.

BOTH BACK BRAKE LIGHT WORK INCONSISTANTLY. WHILE MOVING AND AT A COMPLETE STOP. LOCAL DEALERSHIP CHARGES AT MIN 1200 PER LIGHT TO FIX. SEEMS TO BE A COMMON PROBLEM WITH THE DENALI'S.

THE SCREEN MENTIONS THE STABILITRAK ISN'T WORKING AND THE TRUCK LOOSES POWER AND SHUTS OFF. THE TRANSMISSION ISN'T SHIFTING PROPERLY. THE TRUCK LOOSES POWER OUT OF NO WHERE AL SO SAYING THE TRACTION CONTROL ISN'T WORKING. IT HAPPENS ALL AT RANDOM TIMES.

THERE ARE NUMEROUS DEFECTS RELATED TO THE STEERING, THE LOW SPEED FORWARD AUTOMATIC BRAKING DOESNT WORK AND THE FRONT PEDESTRIAN BRAKING DOESNT WORK. THE LANE KEEP ASSIST WORKS MOST OF THE TIME BUT THE LANE DEPARTURE WARNING NEVER WORKS. I BROUGHT IT TO THE DEALER 3 TIMES AND EACH TIM EIM TOLD THAT SINCE THERE ARE NO COMPUTER ERROR CODES IT HAS TO BE WORKING. THEY EVEN GAVE ME PAPERWORK WHERE GM TELLS THE MECHANIC WHAT TO TELL THE CUSTOMERS WHO COMPLAIN THAT THESE FEATURES AREN'T WORKING.

PARKED VEHICLE IN THE GARAGE AND WENT IN THE HOUSE. NEXT MORNING WENT TO USE VEHICLE AND FOUND THAT THE REAR HATCH GLASS HAD EXPLODED. GLASS EVERYWHERE. THE VEHICLE HAD NOT BEEN MOVED FOR OVER 12 HOURS. HAVE CALLED TO HAVE GLASS REPLACED BUT HAVE SINCE DISCOVERED THAT THIS IS A COMMON ISSUE WITH THESE TYPES OF VEHICLES. NOW AM CONCERNED THAT IT WILL HAPPEN AGAIN. MAJOR CONCERN IS IT WILL HAPPEN AGAIN WHILE DRIVING AND HAVE MY GRAND CHILDREN IN THE BACK SEAT AND GET INJURED FROM FLYING GLASS.

VEHICLE IS UNABLE TO SHIFT INTO PARK. I KEEP GETTING AN ERROR MESSAGE TO "SHIFT TO PARK" EVEN THOUGH I AM IN PARK, AND IT WILL NOT ALLOW ME TO TURN THE VEHICLE OFF. I WILL HAVE TO SHIFT THE CAR INTO DRIVE AND PARK ABOUT 25 TIMES BEFORE IT WILL RECOGNIZE THAT IS ACTUALLY IN PARK SO I CAN TURN OFF THE VEHICLE. THIS ONLY HAPPENS WHN THE VEHICLE IS STOPPED AND I AM TRYING TO TURN IT OFF.

SHIFTER ASSEMBLY PROBLEM. WHEN TURNING CAR OFF, YELLOW LIGHT GOES ON AND CAR REMAINS ON AFTER SHIFTING TO PARK.

WHEN BRAKING AT LOW SPEEDS, ESPECIALLY IN REVERSE, BRAKES FAIL. I HAVE TO PUSH THE PEDAL ALL THE WAY TO THE FLOOR AND THEY STILL DO NOT OPERATE CORRECTLY. THIS IS A CONSISTENT, MULTI-INCIDENT, PROBLEM SINCE PURCHASE. MANIFESTS ESPECIALLY WHEN BACKING INTO A PARKING SPOT.

DAILY THE TRANSMISSION HAS A HARD SHIFT FROM 1ST TO 2ND GEAR. POTENTIALLY CAUSING ME TO LOOSE CONTROL OF THE VEHICLE. IVE HAD IT IN THE GMC SHOP 3 TIMES AND GMC IS UNABLE TO FIX THE PROBLEM. AFTER THE VEHICLE SITS FOR PERIODS OF 4 HRS OR MORE THE PROBLEM REOCCURS. THIS IS A SERIOUS POLITICAL SAFTEY HAZARD IN THE 8SPEED TRANSMISSION AND NEEDS TO BE RECALLED AND FIXED WITH A NEW TRANSMISSION.

I HAVE NEVER HAD TO REPLACE BULBS IN THE HEADLIGHTS IN A VEHICLE I HAVE OWNED. THE HEADLIGHTS IN THIS VEHICLE WERE GOOD ABOUT 2 YEARS. BUT, SINCE THEN I HAVE HAD TO REPLACE BOTH BULBS IN THE HEADLIGHTS EVERY YEAR. AND, I HAVE TO HAVE THE A/C SYSTEM WORKED ON EVERY YEAR AS WELL BEGINNING 3 MONTHS AFTER I PURCHASED IT. PURCHASING THIS VEHICLE IS THE WORST DECISION I HAVE EVER MADE IN MY LIFE. I AM CONSTANTLY HAVING SOMETHING BREAK. HEADLIGHTS, WHEEL BEARINGS, MOTOR MOUNT, MULTIPLE ISSUES WITH A/C, TRANSMISSION.