2014 GMC Sierra 1500 complaints

BRAKE ASSIST FAILED WITH OUT WARNING, BRAKE PEDAL GETS HARD, DID FIRST TIME AT SLOW SPEED IN REVERSE, EXTREME DIFFICULTY IN STOPPING. LUCKILY WAS NOTHING BEHIND ME IN PARKING LOT. FOUND OUT COMMON PROBLEM WITH VACUUM PUMP FAILURE IN THIS YEAR WITH AVERAGE MILEAGE AROUND 80,000, I HAVE 86,900 MILES. PROBLEM GOT CONTINUED AFTER LEAVING PARKING LOT WHEN DOING 30 MPH TRIED TO STOP FOR TRAFFIC LIGHT, HAD TO PUSH PEDAL WITH EXTREME FORCE TO TRY AND STOP TRUCK, AGAIN FORTUNATELY NOTHING IN FRONT OF ME, SO THERE WAS NO ACCIDENT

2014 GMC SIERRA VACUUM PUMP FAILURE AT 81,201 MILES. THIS SEEMS TO BE AN EPIDEMIC WITH THESE TRUCKS. I TOW AN 8,000 POUND TRAILER AND TO THINK THE TRUCK BRAKES COULD POTENTIALLY NOT WORK IS INSANITY. HOW DOES GM MAKE THE STEERING ELECTRIC ON THIS TRUCK AND PUT ELECTRIC VACUUM PUMPS ON THE CAMARO'S AND CORVETTES BUT DECIDES TO PUT A MECHANICAL VACUUM PUMP ON THE TRUCKS? THIS IS AN IMMEDIATE SAFETY DEFECT THAT NEEDS TO BE ADDRESSED.

HAVE A BAD TAIL LIGHT ON MY RIGHT SIDE AND TOOK IT TO ELHARTS TO SEE WHY IT WON'T LIGHT UP WITH NEW BULBS AND THEY SAID THAT THE WHOLE TAIL LIGHT HAS TO BE REPLACED BECAUSE IT HAS BAD WIRING I DON'T FEEL THAT I SHOULD HAVE TO PAY FOR THIS TO BE DONE WHEN IT'S A MANUFACTURER PROBLEM THAT IT WAS BAD WHEN IT WAS PUT INTO MY TRUCK THE PART ALONE WILL COST 215 .00 PLUS I HAVE TO PAY TAXES PLUS LABOR COULD BE TOTALLY NOT HAPPY WOULD LIKE NOT TO COME OUT OF MY POCKET IF I DON'T GET IT FIXED IT WILL CAUSE A ACCIDENT THAT COULD BE VERY BAD

BRAKES LOOSE PRESSURE, WHEN PRESSED ON UPHILL/DOWN HILL,IN REVERSE. AC HOSE FROM CONDENSER TO COMPRESSOR IS FAULTY LEAK OUT ALL FLUID

TL* THE CONTACT OWNS A 2014 GMC SIERRA 1500. WHILE DRIVING 55 MPH, THE STEERING FAILED AND THE VEHICLE BECAME DIFFICULT TO STEER. ALSO, THE SERVICE VEHICLE WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO MUSSON PATOUT BUICK GMC (214 U.S. 90 FRONTAGE RD, NEW IBERIA, LA 70560, (337) 465-4161) WHERE IT WAS DIAGNOSED THAT THE STEERING MOTOR PUMP NEEDED TO BE REPAIRED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED. THE FAILURE MILEAGE WAS 69,000.

THIS OCCURRENCE HAPPENED IN THE SPRING OF 2018. I HAD EXITED THE HIGHWAY AFTER A 25 MINUTE DRIVE AND SAT IN A LONG LINE TO ENTER A BALLPARK. THE WAIT IN THIS SLOW MOVING LINE MAY HAVE BEEN A HALF HOUR. IN THIS HALF HOUR, I WOULD LET OFF THE BRAKE TO ROLL FORWARD AND REAPPLY THE BRAKE. IT WAS MOSTLY DOWN HILL SO THE GAS PEDAL WAS UNNECESSARY. WHEN WE PAYED FOR PARKING, WE WERE ASKED TO PULL OVER TO THE SIDE OF THE ROAD, POINTING IN THE WRONG DIRECTION FOR PARKING. THE VEHICLE WAS PUT IN PARK. AFTER ISSUES WERE RESOLVED, I PUT THE VEHICLE IN DRIVE AND TURNED AROUND FOR PARKING. IT WAS HERE THAT I PRESSED THE GAS PEDAL TO GET BACK IN LINE, BUT WHEN I HIT THE BRAKE AS I ENTERED MY SPOT, THE BRAKE REFUSED TO STOP THE VEHICLE. I CONTINUED TO PRESS THE BRAKE, BRACING MY BACK AGAINST THE SEAT BACK REST, AND COULD FEEL US SLOWING, BUT NOT TO THE DEGREE I WAS PRESSING THE BRAKE PEDAL FOR. NO ACCIDENT OCCURRED AND THE SPEED I WAS SLOWING DOWN FROM COULDN'T HAVE BEEN MORE THAN 15 MPH. AS WE ENTERED THE PARKING LOT, THE PROBLEM CONTINUED. I COULD ONLY SLOW THE VEHICLE BY BRACING AGAINST THE BRAKE PEDAL. I COULD NOT GET THE VEHICLE TO SUDDEN STOP FROM A ROLLING SPEED. I REVERSED INTO MY PARKING SPOT, PUT THE VEHICLE IN PARK, APPLIED THE PARKING BRAKE, AND SHUT OFF THE ENGINE. WHEN I RETURNED FROM THE BALL GAME, I STARTED THE VEHICLE BACK UP, TOOK OFF THE PARKING BRAKE, PUT IT IN DRIVE AND TESTED THE BRAKES IN THE PARKING LOT. THE BRAKES FUNCTIONED LIKE NORMAL. DEPRESSING THE BRAKES HARD WO

STEERING RACK CLUNKS WHEN TURNING LEFT AT LOW SPEEDS.

ON 2/12/19 I WAS DRIVING DOWN A BUSY STREET AT ABOUT 1:30PM I WAS TRYING TO APPLY MY BREAKS AND I COULD NOT STOP THERE WAS NO BREAKS. I HAD TO SWERVE INTO A LITTLE STREET TO AVOID CRASHING INTO ANOTHER VEHICLE. I PUT MY TRUCK INTO PARK TO STOP MY VEHICLE FROM CRASHING. I HAD MY TRUCK TOWED TO MY MECHANIC AND MY VACUUM PUMP HAD TO BE REPLACED. WHICH THAT IS PART OF MY BREAKING SYSTEM. THE REASON I'M MAKING THIS COMPLAINT IS BECAUSE THIS COULD HAVE ENDED UP IN A FATALITY WHICH I WANT TO AVOID. THIS PART NEEDS TO BE RECALLED AND ALL VEHICLES NEED TO BE CHECKED BEFORE THIS HAPPENS TO SOMEONE ELSE. BECAUSE IT HAPPENED TO ME IT CAN HAPPEN TO ANYONE THAT OWNS THIS VEHICLE. MY TRUCK HAD LOW MILES ONLY 76,470. THIS ISSUE NEEDS TO BE ADDRESSED IMMEDIATELY.

THE VEHICLE 4WD SYSTEM REMAINS ENGAGED AND WILL NOT DISENGAGE. UPON FURTHER INVESTIGATION THE SYSTEM EFFECTS STEERING AND DRIVABILITY. ALSO EFFECTS SPEED OF THE VEHICLE. THE VEHICLE UTILIZES A CODE C0398 AND SHOW A MESSAGE OF THE DASH SERVICE 4WD. THIS IS DUE TO FAULTY SOFTWARE INSTALLED BY THE MANUFACTURER. WILL CAUSE DAMAGE TO MECHANICAL PARTS IF DRIVEN ON THE VEHICLE AND IS A SAFETY HAZARD. GM REFERENCE # ISSUED TO ME WHEN ISSUE COMPLAINT OF THE OUT OF POCKET COST TO UPDATE THE SOFTWARE AS REQUIRED BY GM TO FIX THEIR OPERATING SYSTEM. MY REFERENCE NUMBER IS 9-5058496526. SAME ISSUE RESULTED IN 2015 GMC SIERRAS THAT CAUSED GM TO ISSUE A SERVICE BULLETIN #28770. SOFTWARE ISSUES ARE NOT WEAR AND TEAR COMPONENTS. GM FAULTY SOFTWARE IS THE RESPONSIBILITY OF THE GM AS THEY CAN CAUSE SAFETY AND DAMAGE TO THE MECHANICAL PARTS OF THE VEHICLE.

BRAKE PEDAL GETS HARD AT RED LIGHTS STOPPING POWER IS REDUCED LACK OF POWER ASSISTANCE

VACUUM PUMP FOR POWER BRAKE ASSIST WENT OUT. VEHICLE ONLY HAS 58000 MILES AT THE TIME. I LOST POWER BRAKES WHILE BACKING UP IN A GAS STATION CAUSING ME TO NEARLY STRIKE A GAS PUMP. HAD I NOT THOUGHT FAST AND DEPRESSED MY EMERGENCY BRAKE I WOULD HAVE STRUCK THE PUMP.

HEADLIGHTS ON MY 2014 GMC SIERRA 1500 SLT ARE TOTALLY INADEQUATE ON HIGH OR LOW BEAM. THE LIGHTING DISTANCE IS INADEQUATE AND IS SO DIRECTIONAL THAT THERE IS NO SIDE FLAIR LIGHTING FOR TURNING LIKE YOU HAVE WITH CONVENTIONAL HEADLIGHTS. THIS IS A SERIOUS SAFETY ISSUE AND NEEDS TO BE ADDRESSED IMMEDIATELY BY THE NHTSA. I HAVE HAD THIS VEHICLE FOR 41/2 YEARS AND THE PROBLEM IS ONGOING SINCE I BOUGHT IT. THE DEALER HAS NO SOLUTION. NEW HI/LOW BULBS, DEALER INSTALLED AND STILL VERY DIM AND UNSAFE.

I SEEM TO LOSE BRAKING POWER AT LOW SPEEDS AFTER PUMPING THE BRAKES A COUPLE OF TIMES. IN ORDER TO STOP I NEED TO USE MUCH MORE FORCE

BRAKE PEDAL GETS VERY STIFF AT LOW SPEED AND LOW RPM. NO COLLISION HAS HAPPENED BUT CLOSE CALLS HAVE HAPPENED.

WHEN SLOWING DOWN, THE BRAKE PEDAL ON THE VEHICLE WOULD BECOME HARD TO PRESS. ONCE THE BREAK PEDAL BECAME HARD, IT WOULD TAKE A LONGER DISTANCE TO STOP THE VEHICLE COMPLETELY. IT HAPPENED AT SLOWER SPEEDS, FOR EXAMPLE AS I WAS PULLING INTO A PARKING LOT.

I STARTED MY TRUCK AND A MESSAGE CAME UP THAT SAYS TO SERVICE POWER STEERING AND I AM UNABLE TO TURN MY WHEEL OR DRIVE SAFELY. I KNOW THAT THIS IS A RECALL ON 2014 SIERRA BUT THE DEALERSHIP REFUSES TO FIX MINE

BRAKE PEDAL BECAME HARD AND WAS DIFFICULT TO STOP PROPERLY. I FELT THAT I HAD NO CONTROL OVER THIS VEHICLE. .I BROUGHT THE TRUCK TO VAIL GMC IN MT KISCO ,NY ON SEPT 22, 2017 THEY SAID IT WAS THE VACUUM PUMP AND HAD TO BE REPLACED AT THE COST OF $353.16. THE VEHICLE ONLY HAD 40256 MILES ON IT JUST OUT OF WARRANTY. IT WAS BROUGHT TO MY ATTENTION THAT THIS A REAL PROBLEM WITH THIS ISSUE NATIONALLY. THIS IS A POTENTIALLY A DANGEROUS CONDITION AND IS UNSAFE.THIS BRAKING PROBLEM WAS ON THE THE CITY STREET AND PARKING LOT.

I WAS DRIVING ON THE INTERSTATE AND A MESSAGE STATING "SERVICE STABILITRACK" MESSAGE APPEARS SIMULTANEOUSLY WITH THE CHECK ENGINE LIGHT AND SERVICE TRACTION CONTROL, THE CAR LOSES THE ABILITY TO ACCELERATE AND MAINTAIN SPEED. I KEPT DRIVING BECAUSE THERE WAS NO SAFE PLACE TO STOP, AND AFTER A FEW MILES THE DOOR LOCKS UNLOCKED THEN LOCKED, THE INFO SCREEN FLASHED AND THEN THE ENGINE REVVED AND APPEARED TO DRIVE NORMALLY. SEVERAL MILES LATER IT HAPPENED AGAIN, OVER AND OVER. WHEN I REACHED MY NIEGHBORHOOD THE CAR COMPLETELY POWERED OFF.

MY TRUCK LOST ALL ELECTRICAL POWER WHEN I WAS AT A STOP LIGHT,, I WAS IN DRIVE BUT WAS AT A STOP LIGHT , IT HAPPENED A SECOND TIME AFTER I SHUT IT OFF CAME BACK AND TURNED THE KEY AND THERE WAS NO POWER I WAITED FOR 5 MINUTES AND AL OF SUDDEN ELECTRICAL TURNED ON

WHEN I WAS INVOLVED IN A FRONT IMPACT COLLISION THE DRIVER'S AIRBAG DIDN'T INFLATE. THE PASSENGER SIDE FLOORBOARD HAD SMOKE AND GAS COMING FROM UNDER THE DASH.

"TAKATA RECALL" DRIVING TRUCK DOWN INTERSTATE AND IT JUST CUTOFF NO STEERING NO BREAKS ALL POWER SHUTS OFF. I WAIT TILL TRUCK IS STOOPED AND TRY WIGGING KEY AND MAKE SURE GEARSHIFT IS IN RIGHT POSITION. AFTER A FEW MIN LIGHTS COME ON THE DASH AND THE TRUCK WILL START BACK UP. IT SAYS IN THE NOTIFICATION AREA IN DASH LET DRIVER SIDE WINDOW DOWN AND UP AGAIN. THIS HAS HAPPEN TWICE AND BOTH TIMES I WAS ON A INTERSTATE ALMOST HIT BY CARS BEHIND ME. I WAS DRIVING ABOUT 65 MPH GOING STRAIGHT MOST TIME IT WOULD DO THIS IF I CHANGE LANES.

DROVE MY VEHICLE ABOUT 15 MILES AND PARKED IT IN A PARKING LOT FOR ABOUT 10 MINUTES. WHEN I RETURNED AND BACKED OUT OF THE PARKING SPACE THE BRAKE PEDAL WOULD NOT COMPRESS MUCH AT ALL UNLESS I PUSHED ON IT WITH SOME BODY WEIGHT FOR LEVERAGE AND ONLY THEN THE VEHICLE BARELY STOPPED - WAS TRAVELLING AT A VERY LOW SPEED BUT STILL VERY HARD TO STOP THE VEHICLE. I TRIED TO PUMP THE BRAKE PEDAL, THEN CAREFULLY MOVED THE VEHICLE A COUPLE OF TIMES TO TEST THE BRAKES AND THE CONDITION REPEATED. I THEN PARKED THE VEHICLE AND SHUT OFF THE ENGINE MOMENTARILY. THE CONDITION PERSISTED WHEN I RESTARTED THE VEHICLE. I STARTED TO DRIVE THE VEHICLE SLOWLY AND CAREFULLY IN A LOOP AROUND THE PARKING LOT PUMPING THE BRAKES A COUPLE TIMES AND THE PEDAL FINALLY RETURNED TO NORMAL. HAD I BEEN ON THE HIGHWAY WHEN THIS CONDITION OCCURRED OR HAD I BEEN TOWING OUR 5K-LB TRAILER THE CONSEQUENCES COULD HAVE BEEN CATASTROPHIC. READING ONLINE THE ISSUE APPEARS COMMON IN GM TRUCKS FROM 2014 UP AND THE CAUSE WAS OFTEN A FAILING VACUUM PUMP. I LOCATED A COPY OF A SERVICE BULLETIN PUBLISHED INTERNALLY BY GM DISCUSSING THE ISSUE AND PRESCRIBING A REPAIR PROCEDURE. THE BULLETIN NOTED THAT IF ENGINE OIL ESCAPED PAST THE SEAL(S) OF THE FAILING VACUUM PUMP REPLACEMENT OF THE BRAKE BOOSTER, MASTER CYLINDER, AND VACUUM LINE MAY BE REQUIRED IN ADDITION TO THE PUMP. GIVEN THE APPEARANCE OF THIS AS A COMMON ISSUE, FEAR OF LOSING BRAKES AGAIN, AND FEARING THAT WAITING MAY NECESSITATE OTHER BRAKING COMPONENTS UNDER THE HOO

I HAVE TAKEN MY VEHICLE THREE TIMES TO THE DEALERSHIP FOR THE RADIO SYSTEMS TURNING OFF COMPLETELY, NOT GIVING ACCESS TO RADIO FUNCTIONS, AND STAYS ON AFTER THE VEHICLE IS COMPLETELY TURNED OFF. NOW THE ISSUE IS CROSSING OVER TO THE DRIVER CLUSTER CONTROL MODULE WHERE IT TURNS OFF COMPLETELY AND RESTARTS ON ITS OWN WHILE I'M DRIVING. DEALERSHIP HAS NEVER GIVEN ME A SOLUTION OR HAVE CONTACTED ME SINCE THEN. WHEN I CALLED ABOUT ON GOING ISSUE, THEY STATED THAT THEY CANNOT DO ANYTHING UNLESS THE PROBLEM IS PRESENT WHEN AT THE DEALERSHIP EVEN AFTER I EXPLAINED IT HAPPENS AT RANDOM TIMES. THEY REFUSED TO LISTEN AND LOOK UP PRIOR SERVICE HISTORY. DID PRIOR RESEARCH AND LOCATED AN ARTICLE THAT RADIO AND CLUSTER WERE GOING TO BE PART OF A RECALL BUT GM CLAIMED IT WAS NOT AN ISSUE.

WHWN DRIVING ON HIGHWAY AT 60 MPH - TRIED TO PASS ACCIDENT SCENE TRUCK TAC STARTED REVING. SPEED DROPPED TO 25-30 MPH. PUSHING ACCELORATOR ONLY REVED THE ENGINE MORE WITH NO INCREASE IN SPEED. BURNING SMELL. DEALER UNABLE TO FIND CAUSE. HAPPENED TWICE.

WHILE SLOWING DOWN AT TRAFFIC TRUCK FELT LIKE IT WAS SUPER HEAVY AND KEPT GOING, BRAKE PEDAL GOT HARD AND COULD NOT PRESS DOWN. AC WENT OUT ON ME TWICE DO TO BAD COMPRESSOR AND HAD TO REPAIR AT DEALER. TRANSMISSION KNOCKS WHEN SLOWING DOWN AND HARD SHIFTS LIKE ITS GOING TO BREAK. ALSO VISIBILITY IS POOR ON VEHICLE WHEN DRIVING AT NIGHT AS THE LIGHT ARE VERY DIM. HAD TO BUY ALTERNATE LIGHTS BUT STILL DIM.

DRIVER SEAT BELT LOCKS UNEXPECTANTLY UNABLE ANY SLACK TO BE ABLE TO MOVE TO SAFELY CHANGE LANES TO VERIFY NO CARS IN BLIND SPOT

WHILE BACKING UP INTO PARKING SPACE, TRUCK FELT LIKE IT WAS PUSHING SOMETHING. BRAKE PEDDLE BECAME HARD AND WHEN NOT STOP TRUCK, CAUSING VEHICLE TO HIT POLE AND DAMAGE BOTH THE TRUCK AND THE POLE.

MY 2014 GMC SIERRA SHUTS OFF WHILE DRIVING ON THE INTERSTATE WITH MY FAMILY. IN SOME CASES ALL ELECTRICAL BLINKS AND IT CONTINUES TO DRIVE WHILE TEMPORARILY LOSING POWER STEERING AND OTHER FEATURES AND OTHER TIMES TURNING OFF COMPLETELY UNTIL COMING TO A STOP. THE DEALERSHIP WANTS ~$400 TO DO DIAGNOSTICS ON A G218 BOLT THAT THEY WERE TOLD BY GMC THAT IT IS RELATED TO. THIS ISSUE CAME FROM THE FACTORY THIS WAY. WHILE NOT WANTING TO PAY THAT FOR THE DIAGNOSTIC AND RESEARCHING MYSELF, I FOUND 100S OF VIDEOS ONLINE SIMILAR TO THE ONE BELOW WHICH SHOWS THIS ISSUE HAPPENING TO OWNERS OF THE GMC TRUCKS. WHEN I SPOKE WITH GMC CUSTOMER CARE ABOUT THIS, THEY TOLD ME THAT THERE WERE NO RECALLS ON THE ISSUE. THERE ARE GOING TO BE TRUCK OWNERS THAT LOSE THEIR LIFE ALONG WITH ANY PASSENGERS IF THIS ISSUE IS NOT TAKEN CARE. I AM VERY SCARE FOR OUR SAFETY AND THE SAFETY OF COUNTLESS OTHERS LIKE THE LINK BELOW HAVE POSTED ABOUT THIS KNOWN ISSUE. HTTPS://WWW.GM-TRUCKS.COM/FORUMS/TOPIC/198500-2014-AND-UP-GUYS-WITH-FUNKY-ELECTRICAL-ISSUES/

DRIVING AT LOW SPEED IN TRAFFIC ON A HIGHWAY, BRAKES FAILED THEN LOCKED-UP CAUSING TRUCK TO SKID AND HIT THE CAR IN FRONT.

AT SLOW SPEED BACKING INTO A PARKING SPOT THE BREAK PEDAL TURNED REALLY HARD TO PRESS TO STOP THE TRUCK, IT TOOK A LOT OF FORCE TO STOP IT; SHIFTED THE TRUCK INTO NEUTRAL TO PREVENT HITTING A POLE, SHIFTED THE TRUCK BACK TO DRIVE THE TRUCK WAS STILL SHOWING THE SAME PROBLEM THE VEHICLE BRAKE SYSTEM WAS USELESS (UNSAFE) SHIFTED BACK INTO NEUTRAL AS PEDESTRIANS WERE WALKING BY AND USED THE EMERGENCY BRAKE TO STOP THE TRUCK! PLEASE INVESTIGATE INTO THIS ISSUE THE TRUCK HAS LESS THAN 50K MILES AND ALL SERVICE IS DONE AT THE DEALERSHIP - AFTER TALKING TO THEM TODAY THEY SAID THE TRUCK IS OUT OF WARRANTY THE POTENTIAL COST TO REPAIR WILL BE $2000

WE HAD THE VEHICLE RECALL NOTICE ABOUT THE STABILITY AND POWER ASSIST REPAIRED AT OUR PREFERRED GM DEALERSHIP, JAMES WOOD, BEFORE THE PROBLEM OCCURRED BECAUSE OF A RECALL NOTICE WE RECEIVED LAST YEAR. SUNDAY, JANUARY 30, 2018 THE DASH DISPLAYED POWER ASSIST LIMITED AND ALSO DISPLAYED ABS LIGHT . SERVICE ENGINE SOON, SO WE BROUGHT IT TO THE DEALERSHIP AGAIN. THIS TIME THE VEHICLE WAS REVVING HIGH BUT NO DISPLAY. THE DEALERSHIP OBSERVED THE VEHICLE DOING THIS BUT WE WERE TOLD THE RECALL HAD ALREADY BEEN PERFORMED. THERE IS A REVISED PRODUCT SAFETY RECALL REFERENCE NUMBER N172085440. I'M ALERTING THE NHTSA OF THIS.

TL* THE CONTACT OWNS A 2014 GMC SIERRA 1500. WHILE DRIVING 60-75 MPH, THE FRONT END OF THE VEHICLE VIBRATED. THE VEHICLE WAS TAKEN TO MILLER BUICK GMC (920 US-1, ISELIN, NJ 08830, (732) 596-7752), BUT THE CAUSE OF THE FAILURE COULD NOT BE DETERMINED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 29,000.

I WAS DRIVING ON THE HIGHWAY AND NOTICED MY BRAKE PEDDLE BECAME HARD. I WAS IN MILD TRAFFIC SO I WAS ONLY TRAVELING AROUND 40 MILES MPH ON I 287 I WAS NOT ABLE TO STOP QUICKLY. I DID NOT GET INTO AN ACCIDENT. I WAS ABLE TO GET IT TO MY DEALER FOR REPAIR. I WAS TOLD THAT THE VACUUM PUMP NEEDED TO BE REPLACED AND PARTS OF THE PUMP WERE ALSO SUCKED INTO THE ENGINE. I WAS ALSO TOLD THAT I WOULD NEED TO HAVE THE OIL PAN REMOVED TO REMOVE ANY DEBRIS WHICH WOULD COST AROUND $1100. AT THIS TIME I STILL DO NOT HAVE THE TRUCK BACK OR REPAIR INVOICE. I HAVE BEEN RESEARCHING AND DID SEE THAT THERE HAVE BEEN ISSUES WITH THE VACUUM PUMPS ON OTHER GMC PICKUPS. FORTUNATELY I WAS NOT DRIVING AT A HIGH SPEED AT THE TIME OF THE ISSUE.

NO WARNING OF BRAKE FAILURE ESPECIALLY WHEN BACKING DOWN A HILL AT LOW R.P.M WITH A BOAT TRAILER. THIS IS A VERY DANGEROUS PROBLEM THAT NEEDS TO BE ADDRESSED A.S.A.P. NO WARNING LIGHTS WERE DISPLAYED AND NO ISSUES BEFORE THIS HAPPENED. I'M JUST GLAD IT WAS ME AND NOT SOMEONE ELSE ( WIFE ) BACKING US IN THE WATER. PLEASE ADDRESS THIS AS A VERY SERIOUS ISSUE. SOMEONE COULD HAVE LOST THEIR LIFE

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 TA

INTERIOR LIGHT FLASHES WHEN STEPPING ON BREAK PEDAL

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.

WHEN BACKING DOWN A STEEP HILL OR BACK A BOAT DOWN THE BOAT RAMP, THE BRAKE PEDAL GET HARD AND THE TRUCK DOESN'T WANT TO STOP. DRIVING ON A FLAT SURFACE I HAVEN'T HAD AN ISSUE BUT IT IS VERY SCARY BACKING THE BOAT INTO THE WATER FEELING THE BRAKES AREN'T DOING ITS JOB.

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....

WITHIN ABOUT 15 MONTHS OF OWNERSHIP MY VACUUM PUMP ON THE BRAKES MALFUNCTIONED, WHILE I WAS TOWING A PONTOON BOAT. NEEDLESS TO SAY I WAS VERY SCARED THAT I WAS NOT GOING TO BE ABLE TO STOP BUT EVENTUALLY I SLOWED DOWN ENOUGH TO PULL INTO A GAS STATION IN WARSAW, IN. LUCKILY WHEN THIS HAPPENED THERE WERE VERY FEW OTHER VEHICLES OUT ON THE ROAD OTHERWISE THIS STORY MAY HAVE A DIFFERENT ENDING. THIS HAPPENED ON HIGHWAY 15 IN MILFORD, IN.

WHEN BRAKES WERE APPLIED THE TRUCK WOULD NOT STOP, TRUCK WAS JUST OUT OF WARRANTY BY WEEKS, INDEPENDENT SHOP REPLACED THE VACUUM AIR PUMP FOR THE BRAKE SYSTEM. I WAS LUCKY THAT I WAS MOVING VERY SLOW ,IN A PARKING LOT, NO ONE WAS HURT AND NO DAMAGE TO THE TRUCK.

AIR CONDITIONING CONDENSER LEAKED OUT ALL FREON DUE TO FAULTY WELD

THE PROBLEM HAS OCCURRED TWICE IN THE LAST WEEK. BOTH TIMES IN NORMAL DRIVING CONDITIONS AND GOOD WEATHER CONDITIONS. WHILE PULLING IN MY DRIVEWAY AT LOW SPEED WHEN I PUSHED ON THE BRAKE PEDAL IT WAS HARD AND WOULD BARELY DEPRESS. THERE WAS NO POWER ASSISTED BRAKING AND IT TOOK ME PRESSING AS HARD AS POSSIBLE WITH BOTH FEET TO GET MY TRUCK STOPPED BEFORE I HIT MY GARAGE. THIS HAPPENED AGAIN WHEN I WAS TRAILERING MY 1500 LB FISHING BOAT. I WAS BACKING IT DOWN THE RAMP AND BRAKES FAILED AGAIN. I HAD TO AGAIN PRESS BRAKE PEDAL AS HARD AS POSSIBLE AND USE EMERGENCY BRAKES TO STOP. THERE WAS A NOTICEABLE GRINDING SOUND IN THE BRAKES WHILE TRYING TO STOP. AGAIN AS IF THERE WERE NO POWER BRAKES. BOTH INSTANCES OCCURRED WHILE GOING 2 TO 3 MPH BUT IF IT HAPPENED IN AN AREA WITH PEDESTRIANS OR AT HIGHER SPEEDS IT COULD RESULT IN SERIOUS PROPERTY DAMAGE AND INJURIES. PLEASE LOOK INTO THIS AND FORCE GM TO TAKE CORRECTIVE ACTION ASAP.