2015 GMC SIERRA 1500 Complaints

MY 2015 GMC SIERRA 1500 (APPROXIMATELY 45,000 MILES) HAD A DEFECT THAT CAUSED THE AC SYSTEM TO CRACK AND LEAK REFRIGERANT, LOSE PRESSURE, AND FAIL TO PROPERLY FUNCTION. WHEN I TOOK MY VEHICLE TO A CERTIFIED GM SERVICE CENTER ON 4/11/19, THREE OTHER SIMILAR VEHICLES (MAKE/MODEL/YEAR) WERE EXPERIENCING THE SAME ISSUE. UPON CONDUCTING FURTHER RESEARCH I FOUND THAT THIS ISSUE IS WIDESPREAD AMONGST SIMILAR YEAR GMC SIERRA AND CHEVROLET SILVERADO 1500 PICKUPS. SO MUCH SO THAT SOME AREAS ARE EXPERIENCING AC CONDENSER REPLACEMENT PART SHORTAGES. MY VEHICLE WAS NO LONGER UNDER WARRANTY AND GM REFUSED TO ASSIST WITH THE OVER $1,200 REPAIR BILL.

HARD PEDAL, EXTREMELY POOR BRAKING RESPONSE WHILE SLOWING AND DURING PARKING OF VEHICLE, ESPECIALLY WHEN MULTIPLE PEDAL PUMPS ARE REQUIRED. PROGRESSIVELY WORSENING OVER PAST 6 MONTHS. I REPLACED VACUUM BOOST PUMP AND PROBLEM WAS CORRECTED.

TRANSMISSION SHIFTED HARD, DELAYED ACCELERATION AT TIMES, SHUDDERED AND JERKED. THIS WAS USUALLY SLOWING DOWN TO TURN AROUND 30 OR 40 MPH AS THE TRUCK WAS IN MOTION. AFTER ONLY TWO YEARS THE ENTIRE TRANSMISSION HAD TO BE REBUILT. THE TRANSMISSION WAS SHIFTING POORLY THE MOMENT I DROVE IT OFF THE LOT EVEN IF IT "ADAPTIVE LEARNING" YOU COULD TELL THERE WAS SOMETHING WRONG.

AT LOW IDLE THE BRAKING BECOME VERY STIFF AND EXTREME PRESSURE ON THE BRAKE PEDDLE IS NEED TO STOP THE VEHICLE. HANK GRAFF OF DURAND MI INDICATED IT IS DUE TO A FAILED BRAKE ASSIST VACUUM PUMP. THE SERVICE REP. ALSO EXPERIENCED THE ISSUE WHEN THEY PULLED THE VEHICLE INTO THE REPAIR BAY. AS THE OWNER, I HAVE EXPERIENCED THIS BRAKING ISSUE MULTIPLE TIMES.

TL* THE CONTACT OWNS A 2015 GMC SIERRA 1500. WHILE DRIVING 50 MPH, THE BRAKES FAILED TO RESPOND AND THE CONTACT LOST CONTROL OF THE VEHICLE. THE CONTACT DROVE ON THE SHOULDER AND WAS ABLE TO PARK IN A REST AREA TO INSPECT THE VEHICLE. THE CONTACT DROVE THE VEHICLE BACK HOME. THE VEHICLE WAS TAKEN TO MCGOVERN BUICK GMC (LOCATED AT 2806, 150 TURNPIKE RD, WESTBOROUGH, MA 01581, (508) 439-4362) WHERE IT WAS DIAGNOSED THAT THE VACUUM BRAKE PUMP NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 102,000. THE VIN WAS UNKNOWN.

WHILE PULLING INTO A PARKING LOT MY BRAKES FAILED TO STOP MY TRUCK TWICE. THE BRAKE PEDAL WAS VERY STIFF, LIKE IT WAS A MANUAL BRAKE AND NOT POWER. HAD TO DEPRESS BRAKE PEDAL VERY HARD TO GET MY TRUCK TO STOP. I SHUT OFF THE ENGINE AND THEN RESTARTED AND THE BRAKE PEDAL RETURNED TO NORMAL.

AT FIRST THE ISSUE STARTED AS I WAS PARKING IN REVERSE, PRESSED THE BRAKES AND THE TRUCK DID NOT WANT TO STOP UNTIL I PUT A LOT OF PRESSURE ON THE BRAKES. THEN PULLED FORWARD TO CHECK AND IT DID THE SAME THING SO I PARKED THE TRUCK AND LEFT IT OVERNIGHT. IT WORKED FINE IN THE MORNING AND THE NEXT FEW DAYS. THEN IT HAPPENED AGAIN AFTER ABOUT A FIVE HOUR DRIVE HOME FROM WORK I EXITED THE FREEWAY EXIT 99 IN TUMWATER THE BRAKES GOT REALLY STIFF AND WAS NOT SLOWING QUICK ENOUGH FOR THE STOP SIGN COMING UP, I SLOWED TO ABOUT 35MPH THEN REALIZED IT WASN'T GONNA STOP SO I PRESSED THE BRAKES AS HARD I COULD SWERVING JUST PAST THE STOP SIGN UNTIL IT STOPPED. PRECEDED SLOWLY GOT SOME FUEL AND STILL HAD ABOUT ANOTHER HOUR DRIVE HOME AND NOW THE BRAKES WAS REALLY STIFF AND TRUCK WOULD NOT STOP UNLESS I PUT A LOT OF PRESSURE ON THE BRAKES. SO I GOT BACK ON THE FREEWAY GOING ONLY ABOUT 55 MPH INCREASING MY STOPPING DISTANCE CRAWLING ALL THE WAY HOME HAVING PRESS THE BRAKES EXTREMELY HARD WHEN I NEEDED TO STOP FOR TRAFFIC LIGHTS. NOW I'M AFRAID TO DRIVE THE TRUCK ANYWHERE WITHOUT FEARING OF THE BRAKES NOT WORKING AT ALL COMPLETELY. IT

BRAKE BOOSTER VACUUM FAULTY. CAUSING A NEAR MISS IN DRIVE THRU ALMOST REAR ENDING ANOTHER CAR. VACUUM PUMP FAULTY.BRAKES BECOME HARD TO PUSH AND GET NO RESPONSE. THIS IS A VERY DANGEROUS. GM NEEDS TO HAVE A RE-CALL BEFORE PEOPLE GET KILLED. IT IS A KNOWN ISSUE LOTS OF THE SAME COMPLAINTS.

BRAKE VACUUM PUMP. AT SLOW SPEEDS MY BRAKES ALMOST DON'T SEEM TO WORK. I'M SURE IT'S THE SAME PROBLEM I'VE READ ABOUT.

TL* THE CONTACT OWNS A 2015 GMC SIERRA 1500. WHILE BACKING OUT OF A PARKING SPACE, THE CONTACT DEPRESSED THE BRAKE PEDAL, BUT THE VEHICLE DID NOT STOP. AS A RESULT, THE CONTACT STRUCK A PARKED VEHICLE. A POLICE REPORT WAS NOT FILED AND THERE WERE NO INJURIES. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DETERMINED THAT THE BRAKE VACUUM PUMP WAS DAMAGED AND NEEDED REPLACEMENT. THE DEALER AND MANUFACTURER WERE NOT NOTIFIED OF THE FAILURE. THE VEHICLE WAS REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 48,499.