2014 GMC SIERRA 1500 Complaints

LOST NORMAL BRAKING GOING DOWN A STEEP HILL AT 25 MPH , HAD TO USE BOTH FEET ON THE BRAKE PEDAL JUST TO STOP.

WHILE IN MOTION, APPLIED BRAKES AND THE PEDAL WENT TO THE FLOOR WITHOUT STOPPING. CHECKED BRAKE FLUID AND IT WAS NEAR EMPTY. ONLY 50,000MILES.

LOSING POWER STEERING INTERMITTENTLY AND SUDDENLY. WHEEL BECOMING EXTREMELY DIFFICULT/HEAVIER TO MOVE. TRUCK TURNED OFF.

AT SLOW SPEEDS THE BRAKE PEDAL BECOMES " FLAT" THAT IS TO SAY THERE IS NO TRAVEL OR GIVE IN IT AND YOU MUST APPLY 110% FORCE TO GET THE VEHICLE TO STOP. I ALMOST DROVE THRU THE GARAGE DOOR AT THE LOCAL JIFFY LUBE DEALER. HAD THE LOCAL GMC DEALER LOOK AT IT & HE COULD NOT FIND A SOLUTION TO THE PROBLEM.

MY BRAKE PEDAL GETS HARD WITH NO BRAKES IF I HAPPEN TO BE IN A SITUATION WHERE I APPLY THE BRAKES SEVERAL TIMES QUICKLY, SUCH AS AT THE CARWASH OR IN A PARKING LOT. THE ABS WAS NOT FIRING AT THE TIME. I WAS NOT TURNING. THIS HAS HAPPENED A NUMBER OF TIMES IN THE PAST 2 YEARS.

LOSS OF BRAKING AT LOW SPEED WHILE IN REVERSE. OCCURRED ON AT LEAST TWO OCCASIONS JUST PAST EXPIRATION OF BUMPER TO BUMPER PORTION OF VEHICLE WARRANTY (SEE ATTACHED COMPLAINT LETTER TO GM FOR DETAILS). DEALER STATED VACUUM BOOSTER WAS DEFECTIVE AND REPAIR COSTS EXCEEDED $400.00. GM HOME OFFICE WAS NOTIFIED VIZ FEDEX LETTER. OTHER THAN CONTACTING ME FOR BASIC INFORMATION, NO FURTHER CONTACT WAS INITIATED BY GM OR DELIVERING DEALER. ALLEGED DEFECTIVE PART IS IN OWNER POSSESSION WHICH GM WAS NOTIFIED OF AS WELL.

MAJOR SAFETY CONCERN!: HARD BRAKES AT LOW SPEEDS, INTERMITTENT STIFF BRAKES IN FORWARD AND REVERSE. 2014 GMC SIERRA SLT CREW CAB 4WD, 40K MILES. THIS IS A VERY SERIOUS ISSUE THAT COULD RESULT IN A COLLISION, DAMAGE AND/OR INJURY. I HAVE EXPERIENCED THIS MULTIPLE TIMES SINCE PURCHASING THIS TRUCK FROM THE ORIGINAL OWNER IN 2017. IT HAS HAPPENED WHEN PARKING, MOVING TRAILERS, AN MANEUVERING AT LOW VEHICLE SPEEDS. THE BRAKE PEDAL SUDDENLY BECOMES STIFF WHEN DEPRESSING AND HAS LIMITED OR NO BRAKING ACTION UNLESS APPLYING EXTREME AMOUNTS OF PRESSURE ON THE BRAKE PEDAL. I HAVE DRIVEN VEHICLES WITHOUT POWER BRAKES AND THIS IS NOT THE SAME. IT IS AS IF THE BRAKING SYSTEM IS WORKING AGAINST THE INPUT OF THE PEDAL IN ADDITION TO THE LOSS OF POWER BRAKE ACTION. THE MOST CONCERNING EVENT WAS EXPERIENCED WHILE BACKING A BOAT TRAILER INTO THE WATER WITH TWO CHILDREN IN THE BACK SEAT, BUCKLED IN CHILD RESTRAINING CAR SEATS AND PUSHING WITH BOTH FEET USING ALL MY STRENGTH TO BARELY STOP THE TRUCK AND TRAILER FROM ROLLING ALL THE WAY INTO THE WATER. THIS WAS A TRUE NIGHTMARE, AND IS THE REASON I AM SUBMITTING THIS SAFETY COMPLAINT. HAD MY WIFE BEEN OPERATING THE TRUCK OR A PERSON WITH WEAKER LEGS IN THE SAME SITUATION, THE ISSUE COULD HAVE BEEN SEVERELY TRAGIC. I CANNOT SAFELY OPERATE THE VEHICLE UNTIL THIS IS RESOLVED. I AM TRULY DISAPPOINTED THAT THIS HASN'T BEEN TURNED INTO A RECALL BASED ON THE MULTITUDE OF COMPLAINTS ON THIS VERY SAME ISSUE. HOW MANY CLOSE-CALLS OR NEAR-MISSES DOES IT TAKE BEFORE NHTSA AND A WORLD-CLASS VEHICLE MANUFACTURER CONTAIN A MAJOR SAFETY ISSUE? I HOPE THIS ISSUE GETS THE PROPER ATTENTION AND A RECALL IS MANDATED SWIFTLY, BEFORE MORE PEOPLE GET HURT OR WORSE.

INTERMITTENT EXTREME LOSS OF BRAKING POWER - IN FORWARD AND REVERSE. SOMETIMES AND UNEXPECTEDLY CANNOT STOP QUICKLY EVEN WHEN BRAKE PEDAL PUSHED TO THE FLOOR.

WHEN APPLYING BRAKES AT LOW SPEED LIKE PULLING OUT OF DRIVEWAY OR AWAY FROM A GAS PUMP. IF THE BRAKES ARE PUMPED OR PRESSED HARD THE BRAKE PEDAL GIVES STRONG RESISTANCE AND THE TRUCK WILL NOT STOP. IN ORDER TO STOP THE TRUCK THE EMERGENCY BRAKE NEEDS TO BE APPLIED. THE PROBLEM IS WORSENED IF ON A DOWNWARD INCLINE WHEN TAKING THE TRUCK OUT OF THE PARK POSITION AND MOVING INTO DRIVE WHILE HOLDING FOOT ON THE BRAKE.

FIRST NOTICED AT ABOUT 65000 MILES. WHEN BRAKING IN STOP-AND-GO TRAFFIC OR IN REVERSE (ESPECIALLY DOWN AN INCLINE SUCH AS A BOAT RAMP), THE BRAKES CAN BECOME VERY HARD TO PRESS AND NON-RESPONSIVE. THIS RESULTS IN LONG STOPPING DISTANCES. HAD THE TRUCK INSPECTED BY DEALER AND THEY SUGGESTED VACUUM PUMP. AFTER RESEARCHING THIS ISSUE, THERE APPEARS TO BE A GENERAL ISSUE WITH THE VACUUM PUMPS THAT GM WILL REPLACE UNDER WARRANTY, BUT HAS NOT RECALLED....