2014 GMC SIERRA Complaints

#5 CYLINDER ROCKER ARM BROKE TOOK TO A DEALERSHIP IN MICHIGAN TO GET REPAIRED. PROBLEMS WITH ENGINE RUNNING, BEFORE ALL THIS HAPPENED I WAS GETTING 20/22 MPG ON THE HIGHWAY WHICH IS WHAT I TRAVEL MOSTLY, NOW SINCE THIS HAPPEN I ONLY GETTING 16/18 MPG ON THE HIGHWAY. MY DEALERSHIP IN MILWAUKEE WORKED WITH AN ENGINEER FROM GM AND THEY CLAIM EVERYTHING UP TO SPEC AND WON'T DO ANYMORE ON THE VEHICLE BUT YET SOMETHING HAS HAPPENED THAT I HAVE LOST ABOUT 4/6 MPG HIGHWAY OR $20 PER TANK WHICH WITH MY TRAVELING IS A LOT OF MONEY $400 MONTH. I AM VERY DISSATISFIED WITH GM AND THIS VEHICLE RIGHT NOW WHEN YOU PAY $50,000 + FOR A VEHICLE YOU DON'T EXPECT TO HAVE PROBLEMS WITHIN THE FIRST MONTH OF PURCHASE (BRAND NEW) AND THEN FOR GM NOT TO FIND OUT WHY THE DROP IN MILEAGE IS UNACCEPTABLE. *TR

TL* THE CONTACT OWNS A 2014 GMC SIERRA. THE CONTACT STATED THAT WHILE DRIVING AFTER DARK, THE FRONT HALOGEN HEADLIGHTS BECAME DIM. THE CONTACT STATED THAT THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE FRONT HEADLIGHTS NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 700.

WHILE DRIVING ON FIRST SNOW AFTER TRUCK PURCHASE I TRIED THE 4WHEEL DRIVE SYSTEM. WHEN I SWITCHED IT OVER THE MIRRORS WENT DOWN, THE SEAT WENT BACK, AND THE PEDALS CAME UP. THANKFULLY I WAS GOING SLOW AT THE TIME. IT WAS A VERY STRANGE FEELING AND LUCKY THAT MY WIFE WAS NOT DRIVING AT THE TIME.I HAVE AN APPOINTMENT AT THE DEALERSHIP TO HAVE IT LOOKED AT. *TR

POOR LIGHTING WITH HEADLIGHTS. CAN BARELY SEE WHAT IS AHEAD AT NIGHT. SEEMS LIKE THIS COULD BE VERY DANGEROUS, AND I FEEL UNSAFE DRIVING AT NIGHT, ESPECIALLY IN THE RAIN. TURNING ON FOG LIGHTS HELPS A LITTLE, BUT YOU SHOULDN'T HAVE TO CONSTANTLY RUN THEM. BRIGHT LIGHTS DON'T HELP MUCH EITHER. *TR

BOUGHT VEHICLE NEW IN MARCH '14, HEADLIGHTS ARE HID UNITS, AND ARE WORSE THAN POOR. VERY EASY TO OVERDRIVE THESE LIGHTS HERE ON DARK, TWISTY MOUNTAIN ROADS IN WV. WE HAVE THE HIGHEST RATE OF VEHICLE- DEER COLLISIONS IN THE US AND SEEING DEER WITH THESE LIGHTS IN TIME TO AVOID A COLLISION IS CHANCY. TRADED A 10 YEAR OLD SAME MAKE AND MODEL AND NEVER HAD THESE PROBLEMS. THESE LIGHTS NEED TO BE CORRECTED BEFORE FOLKS ARE KILLED AS A RESULT. *TR

THIS VEHICLE HAS THE WORST HEADLIGHTS OF ANY NEW VEHICLE I'VE EVER OWNED. IT SEEMS DANGEROUS TO DRIVE AT NIGHT, AND I AVOID IT WHERE I CAN. THE BEAM PATTERN IS AWFUL AND THE ILLUMINATION IS POOR. I'VE BEEN DRIVING CARS WITH PROJECTOR HEADLIGHTS FOR YEARS, SO I KNOW THAT IS NOT THE REAL ISSUE. THESE LIGHTS ARE JUST POORLY DESIGNED OR CHEAP. TRIPS TO THE DEALER ARE UNFRUITFUL. THE DEALER KNOWS THEY ARE POOR, BUT CAN DO NOTHING EXCEPT BE SURE EVERYTHING IS PROPERLY ADJUSTED. IF YOU ARE LOOKING AT BUYING A 2014 GMC PICKUP, BUY SOMETHING ELSE. THEY ARE THAT BAD. I JUST KNOW I'M GOING TO HIT A DEER SOON ENOUGH. *TR

HEADLIGHTS IN NORMAL OPERATION SITUATION ARE WOEFULLY SHORT OF ILLUMINATION DISTANCE AND EASY TO OVERDRIVE AT HIGHWAY SPEEDS. HIGH BEAMS AND FOG LIGHTS ARE MORE ADEQUATE, HOWEVER HIGH BEAMS CANNOT BE USED IN TRAFFIC AND FOG LIGHTS TEND TO IRRITATE ONCOMING DRIVERS ON HIGHWAYS IN SMALLER VEHICLES. *TR

TL* THE CONTACT OWNS A 2014 GMC SIERRA. THE CONTACT STATED THAT WHILE ATTEMPTING TO ACCELERATE FROM A TRAFFIC LIGHT, THE ACCELERATOR PEDAL WAS DEPRESSED BUT THE VEHICLE HESITATED TO ACCELERATE. THE DEALER WAS UNABLE TO DIAGNOSE THE FAILURE AND ADVISED THE CONTACT THAT THE VEHICLE WAS WORKING UP TO SPECIFICATIONS. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 3,000.

WHEN WE TOOK OUR NEW TRUCK FOR A TEST DRIVE WE NOTICED A VIBRATION. THE DEALERSHIP SUPPOSEDLY CHECKED IT OUT AND TOOK CARE OF IT. WHEN TOOK DELIVERY OF THE TRUCK AND DROVE IT HOME THE VIBRATION WAS BETTER AT A SLOWER SPEED BUT INCREASED AS THE SPEED INCREASED. WE RETURNED THE TRUCK TO THE DEALERSHIP AND THEY CHECKED IT OUT AND SAID THAT THEY BALANCED THE TIRES AND ROTATED THE DRIVESHAFT 180 DEGREES. IT SEEM TO BE A LITTLE BETTER. BECAUSE WE TAKE THIS TRUCK TO FLORIDA FOR THE WINTER AND IT IS LOADED MY HUSBAND DECIDED THAT HE WOULD PUT SOME WEIGHT IN THE BACK OF IT TO SEE HOW IT WOULD AFFECT IT. THE VIBRATION WAS BETTER AT A SLOWER SPEED AND WORSE AT A HIGH SPEED ON THE HIGHWAY. THE TRUCK HAS NOW BEEN BACK AT THE DEALERSHIP FOR A WEEK AND WE HAVE NOT HEARD ANYTHING IN REGARDS TO IT. THEY ARE SUPPOSED TO BE DOING AN ELECTRONIC VIBRATION ANALYSIS ON IT. MY HUSBAND HAS RESEARCHED THIS PROBLEM ON THE INTERNET AND THERE SEEMS TO BE A LOT OF COMPLAINTS ABOUT THIS PROBLEM. HOPEFULLY PEOPLE ARE REGISTERING THEM ON YOUR WEBSITE. *TR

IT WAS THE FIRST TIME I DROVE THIS NEW GMC AT NIGHT AND I COULDN'T SEE ANYTHING ALMOST HIT A HUGE MOOSE CAUSE I DIDN'T SEE IT. THE HEADLIGHTS ARE AWFUL AND ITS TERRIFYING TO DRIVE AT NIGHT. WENT TO DEALER AND TOLD THEM ABOUT THE HEADLIGHTS THEY SAID THEY HAD NUMEROUS COMPLAINTS BUT GM HAS NO FIX. THESE HEADLIGHTS ARE GOING TO CAUSE MULTIPLE ACCIDENTS SIMPLY DRIVING 45 MPH FEELS LIKE YOU CAN OUT RUN THE HEADLIGHTS IN HIGH BEAM. *TR