2015 GMC SIERRA 1500 Complaints

ON SEVERAL OCCASIONS THE BRAKE PEDAL BECOMES DIFFICULT TO DEPRESS. RELEASING THE PEDAL AND DEPRESSING AGAIN CORRECTS THE PROBLEM. TODAY WHILE EXITING A PARKING SPACE AT LOW SPEED TO AVOID COLLIDIONG WITH ANN APPROACHING VEHICLE IT TOOK BOTH FEET TO DEPRESS PEDAL. I AM A 200 LB. MALE. I AM NOT SURE A SMALL FEMALE COULD HAVE CORRECTED THE FAILURE IN A TIMELY MANNER.

WHEN I PRESS ON THE BRAKES, IT FEELS AS THOUGH THE MASTER CYLINDER IS GONE AND IT IS THE MANUAL TYPE DRUM BRAKES THAT HAS AIR IN THE LINE. IT TAKES EVERYTHING I HAVE TO PRESS THEM AND PRAY IT STOPS!! THE VEHICLE IS ALWAYS IN MOTION WHEN DETECTING THIS PROBLEM AND SEEMS TO OCCUR MORE REPEATEDLY IF THE BRAKES ARE PUMP QUICKLY IN SUCCESSION BEFORE APPLYING BRAKES OR WHEN THE BRAKES ARE PRESSED FOR AN EXTENDED AMOUNT OF TIME THEN YOU RELEASE AND REPRESS IT WANT STOP. ANOTHER ISSUE IS MY LANE ID WARNING. WHEN TURNED ON AT THE BUTTON, IT JUST BEEPS AT ME AND SHOWS SERVICE LIGHT. WHEN I FIRST TOOK IT IN WITH THE PROBLEM, THE DEALERSHIP CALLED ME AND SAID ALL FIXED, BUT IT DID IT BEFORE I LEFT THE PARKING LOT. THEY HAD MY TRUCK ALL DAY FOR THE ISSUE, PUT ME OUT OF A VEHICLE AND THEN SAID THEY WOULD NEED FOR EXTENDED TIME TO REPAIR BUT DIDN'T KNOW THERE WAS PROBLEM. HOW DO YOU MAKE THAT DETERMINATION WHEN YOU TOLD ME ITS REPAIRED. I JUST TURNED IT OFF AND HAVEN'T USED IN 2 YEARS.

TL* THE CONTACT OWNS A 2015 GMC SIERRA 1500. WHILE DRIVING AT A LOW SPEED OR WHILE IDLING, THE BRAKE PEDAL WAS DEPRESSED AND FAILED TO ENGAGE. THE CONTACT STATED THAT THE FAILURE WAS ALSO EVIDENT WHILE DRIVING IN REVERSE AT A LOW SPEED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE LOCAL DEALER AND THE MANUFACTURER WERE NOT NOTIFIED. THE VEHICLE WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 14V339000 (STEERING, SERVICE BRAKES, HYDRAULIC). THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 55,000. *TT*JB

DURING LOW SPEED BRAKING MANEUVERS WHILE PARKING IN MY DRIVEWAY BRAKE PEDAL PRESSURE REQUIRED TO STOP BECAME VERY HARD. IT TOOK BOTH FEET ON THE PEDAL TO ACTUALLY STOP THE TRUCK. THIS WOULD HAPPEN DAILY WHILE BACKING IN TO MY DRIVEWAY. ALSO DURING NORMAL CITY STOP AND GO DRIVING IT WOULD ALSO REQUIRE GREAT EFFORT TO STOP THE TRUCK AND THE PEDAL WOULD BE VERY HARD TO PRESS.

COMPLETE BRAKE FAILURE WITH NO WARNINGS. DEALER DIAGNOSTIC REPORTS FROZEN VACUUM PUMP. THE CONDITION WAS ENCOUNTERED IN MOTION ON A COUNTY RD.

VEHICLE LOSES BRAKE PRESSURE WHILE MOVING AT SLOWER SPEEDS. ONCE COMING TO A STOP, THEN DOING SLOW SPEED STOPS AND STARTS THE PEDAL WILL BECOME HARD AND REQUIRES GREAT EFFORT TO BRING THE VEHICLE TO A COMPLETE STOP. ISSUE STARTED AT ABOUT 38,000 MILES JUST AFTER FACTORY 36,000 MILE WARRANTY. ISSUE PRESENTS ITSELF MORE OFTEN IN REVERSE WHILE BACKING IN, ESPECIALLY IF GRADE IS SLOPED. HAVE HAD MULTIPLE CLOSE CALLS IN PARKING LOT SETTINGS WHILE TRYING TO BACK IN TO A PARKING SPOT OR INCH FORWARD. A FRIEND HAD THIS SAME ISSUE WITH HIS 2016 CHEVROLET SILVERADO, WHICH ENDED UP BEING A $1,800 FIX THROUGH THE DEALERSHIP. HE WAS TOLD THAT IT WAS A VACUUM ISSUE WITH THE BRAKE PUMP AND THAT A RECALL WOULD PROBABLY BE ISSUED. I HAVE BEEN HOLDING OUT ON SERVICE IN HOPES OF THIS RECALL BEING ISSUED.

HARD BRAKE PEDAL - "NO BRAKES" FIRST OCCURRENCE IN PARING LOT 2016 TIMEFRAME . WAS BACKING INTO A SPOT THAT WAS SLIGHTLY DOWNHILL, NO BRAKES , VEHICLE HIT CURB AND STOPPED. PULLED FORWARD NO BRAKE, EVENTUALLY THEY CAME BACK . COMPLAINED TO GM HOTLINE - THEY RESPONDED WITH QUESTIONS AND I TOLD THEM I TOOK TRUCK TO DEALER, I BELIEVE DEALER REPLACED MASTER CYLINDER SECOND OCCURRENCE MAY 2017 DRIVING ON I-75 - 18 YEAR OLD DAUGHTER DRIVING ON WAY HOME FROM COLLEGE, TRAFFIC SLOWED AND SHE SAID "I HAVE NO BRAKES, PEDAL WONT MOVE". SHE MANEUVERED TO SIDE OF ROAD, VEHICLE TURNED OFF AND THEN BACK ON, BRAKES CAME BACK AND WORKED OK . MENTIONED DURING OIL CHANGE AT SERRA CHEVROLET, BUT SINCE BRAKES WERE WORKING THEY WOULD NOT INVESTIGATE THIRD EVENT - NOVEMBER 16-- AT TAIL END OF 8 HOUR DRIVE RETURNING FROM DEER CAMP. EXIT FREEWAY AND IN STOP AND GO TRAFFIC , ON A DOWNHILL PORTION OF ROAD, THE BRAKE WENT HARD . GOT VEHICLE STOPPED AND TURNED ENGINE OFF AND BACK ON, BRAKES RELEASED. CONTACTED DEALER ABOUT BRINGING TRUCK IN THIS WEEK. GOING TO ED RINKE DEALERSHIP TODAY NOV 24, I READ ARTICLE ABOUT THE A FAULTY BRAKE VACUUM PUMP. THIS NOW MAKES SENSE. PLEASE GET THIS ISSUE FIXED

STOPPED TO TAKE A BREAK WHILE TRAVELING. AS WE WENT TO EXIT THE PARKING AREA AND STOP AT THE STOP SIGN, NO REAL BRAKING POWER. HAD TO PUT BOTH FEET ON THE PEDAL AND PRESS INTO IT TO COME TO A STOP. WE WERE TRAVELING AT ABOUT TWO MPH. NO WARNING THERE WAS A PROBLEM. ONE MINUTE WE HAD GOOD BRAKES, THE NEXT, NOT. LUCKILY THERE WAS NO TRAFFIC, AS WE WERE UNABLE TO STOP AT THE STOP SIGN AND FINALLY CAME TO A STOP IN THE RIGHT LANE IF THE ROAD. THE MECHANIC STATED THE REED IN THE VALVE OF THE PUMP CAME APART.

IN STOP AND GO TRAFFIC ON HIGHWAY AT LOW SPEED EXPERIENCED BRAKE PEDAL STIFFENING AND DIFFICULTY STOPPING. REOCCURRED SEVERAL TIMES DURING SAME TRAFFIC PATTERN BUT ONLY AT THE LOW STOP AND GO SPEED. PROBLEM OCCURRED WITH NO WARNING. BRAKES WORKED AS NORMAL UNDER OTHER CIRCUMSTANCES. FORUM RESEARCH SUGGESTED THIS WAS A VACUUM PUMP AND OCCURRED TO OTHER MODELS OF SAME YEAR AND MILLAGE. VACUUM PUMP (INTERNAL) FAILURE WAS CONFIRMED ISSUE BY GM DEALER AND REPLACED. MILEAGE WHEN PROBLEM OCCURRED WAS APPROXIMATELY 47,200 MILES. VEHICLE IN GOOD CONDITION, NO WRECKS ,REGULAR MAINTENANCE, AND NOT USED FOR TOWING OR HEAVY HAULING.

THE STOCK FACTORY HEAD LAMPS/BULBS ARE VERY DIM AND DO NOT LIGHT UP THE SIDE OF THE ROAD OR VERY FAR DOWN THE ROAD AND THE LIGHTS HAVE A VERY SHARP CUT OFF LINE.