2014 GMC SIERRA 1500 Service Brakes Problems

Pressing the brakes more than once locks the brakes up multiple times this has happened. Not an isolated event

The brakes on my GMC Sierra 1500 lose braking power when operating at slow speeds. The brake pedal will lose braking power, causing the vehicle to not stop at slow speeds. This is particularly troubling when pulling into and out of parking spots, driveways, crosswalks, and other areas. I use my truck to pull a boat and when I back my boat into the water at a boat launch, the brakes will lose power when I am in reverse causing the truck to slid into the water.

I am experiencing an issue with a hard brake pedal on my 2014 GMC Sierra 1500. This same issue was previously addressed through a recall and special coverage program by GM, which I had performed. However, the hard brake pedal condition has returned, significantly impairing stopping power at low speeds. This poses a serious safety risk, especially when towing or parking. I can no longer park my trailer safely. The vehicle is difficult to stop, and braking distance has increased substantially. This is a known issue with this model and year. It appears the prior recall may not have adequately resolved the root cause. I am requesting that NHTSA investigate whether additional action or recall extensions are warranted.

This vehicle has the same issue as other recalled GMC Sierra vehicles - the brake booster pump is failing, causing braking difficulty, particularly at low RPM and after repeated presses of the brake pedal.

I was backing my boat down the ramp and the brakes were giving out. I know this was a recall issue, in the past, that I had repaired. Clearly, they repaired it with the same faulty part because it has happened again. When I took it to be repaired they said I had to pay for it this time. The issue wasn't resolved but only deferred until later, with a temporary fix. I could have ended up in the river and drowned. Paying the dealership to fix a safety issue caused by their defective parts is ridiculous.

Power steering was going in and out then all of a sudden completely went out.

When I am braking at low speed my brakes start locking up and eventually do not work. This has happened on multiple occasions. I have almost wrecked multiple times I rarely drive my truck now cause it is unsafe. There is a recall on the brake booster 2014 to 2018 gmc seria but my truck vin is not included on that recall and it’s doing the exact same thing. GM recalls 3.4 million pickups and SUVs over brake pump Sept. 12, 2019 1 The recall includes the Chevy Silverado and GMC Sierra (model years 2014-2018), and affects a vacuum pump defect that may make it more difficult to brake at low speeds.

Break get rock hard at times and makes it almost impossible to stop at a safe distance

Says I have no recalls. I have terrible gas smell and steering light abs light traction light abs light and hard brake pedal. Seats and mirrors move by there selves. Steering wheel shakes. Overall this truck is worrying me so much I won't put my kids in it. Oh also airbag light on also.

Severe gas smell. Brakes hardly stop truck. Service stabilitrac. Paint peel. Steering clunking. Antifreeze leaking

I have a scan tool and it says my brake recall is unfinished. But website says it has been fixed. My brakes are terrible and keep getting service brakes airbag and stabilitrack. The download they used when I took in for the recall was not finished

Recall on brakes says it's fixed. My brakes fail alot suspension chunks all the time and steering feels like tire is falling off

Noticed that there was a recall on this vehicle NHTSA Campaign Number: 19V645000. My concern is that I took my vehicle in back in 2018/2019 for this repair. However my vehicle vacuum pump completely failed the other day where I cannot brake. My vehicle is only at 70,800 and fail to see that if a proper repair was completed back in 2018/2019 for it to fail again a couple of years later with low mileage. While I was able to get this vehicle home safely my concern is that if it failed earlier in the day on the highway I may have cause a serious incident.

Going under 15mph, applying the brake causes the pedal to become stiff and lock up and not work. This has caused me to almost hit someone in traffic. I immediately got off the road and got my vehicle to a safe location off the road . Communicating with a dealer today to confirm possible recall issue or potential repairs.

At low speeds excessive brake pressure is required to stop my truck. Other GM trucks have been recalled for this issue, but i am told my vehicle is not included.

the catalytic converter failed at 110,000 miles and the brake boost hydraulics failed to work properly at 115,000. The electronic stability control started acting erratically at 115,000 miles also.

At low speed and idle, brakes lose power and pedal becomes hard to push. Once RPMs increase, brakes regain full use.

"Service Trailer Brake System" alert on dash. This is a safety concern for 2 reasons; the first being the chime made to warn the driver is distracting, persistent, and annoying. The second is the trailer brake system is apparently not functioning properly which is a danger while towing. This is not the first time this has happened and is a danger to me, my family, and other on the road.

Service trailer brake system warning message. Trailer brake controller inoperable.

Whenever driving I get a message stating that I need to service my trailer brake system. This is most likely due to cheap wiring installed by the manufacture. This has been going on for over a couple of months. Just recently, I was making a slow turn and my vehicle shut off on me and I lost control of my brakes and steering and all power to the vehicle which is a huge safety concern and I am unsure if they are related or not

Air bags didn't deploy on 2 separate incidences and brakes went out last incident

Hello, I am driving a 2014 Sierra truck with 17,761 miles, my father’s work truck. The first week I had No problems, the 2nd week the Trailer Brake warning came on relentlessly. New truck, scary Warning sign! I took it to GMC to dislocate trailer brake, they sold me a $340 trailer brake control switch. Upon my return to where I live a loud sound came from when I was idling to wait for construction to accelerating. I noticed once I got home, my back wheels were hot and a burning smell! I hate when you take your car in for one warning sign and you get something so much worst and you paid outrageously for that! Karma!

I was driving my truck when the Brake assist light came on. When applied the brakes they started pulsing and grabbing. I took it in for service and was told that the Electronic Brake Control Module needed to be replaced and the brake fluid flushed.

I’m having a trail break system warning every few minutes. It is constant and beeps consistently. To the point where I almost cannot drive it. It won’t go away after a little while and is constantly turning on and off. This just recently occurred and hasn’t stopped since. Likewise there was no other indication of this happening till about two days ago. It’s very distracting and persistent to the point where I feel like I can’t even drive with it on.

Driving at certain speeds the truck will just shut off while trying to turn or merge onto the highway. The electronic steering draws to much voltage on the vehicle and it just dies turning and braking after that is a very serious safety hazard and should be looked into I’m a mechanic myself and I’ve replaced grounds done everything I can and still nothing has fixed the issue

The vehicle was in a accident where someone ran a red light and my vehicle hit the in the front passenger side. My speed was around 40 to 45 mph there was no restraint with the seatbelt,airbag did not deploy and brakes didn’t work properly.

Trailer Break System service indicator constantly beeps

THE TRUCK JUST SHUT OFF ALL ELECTRICAL AND DASH CONTROLS AS I WENT TO TURN INTO MY DRIVEWAY. ITS DONE IT TO ME TWICE SO FAR IN THE LAST 3 WEEKS. . NO BRAKES AND NO POWER STEERING.

When driving I went to slow down and couldn't push in the break at all. I couldn't even pump the brakes I had to slam it into park just to avoid hitting the car in front of me

ON SEVERAL OCCASIONS SPANNING MULTIPLE YEARS THE TRUCK LOSES POWER WHILE BRAKING AND TURNING AT SLOW SPEEDS. ON MORE RARE OCCASIONS, BUT STILL NUMEROUS, THE SAME PROBLEM OCCURS WHEN BRAKING AT HIGHER SPEEDS WITHOUT TURNING. THE TRUCK DASH LIGHTS, MEDIA SCREEN AND HEADLIGHTS ALL DIM OR FLICKER AS A TICKING OR POPPING NOISE IS HEARD BEHIND THE DASH MUCH LIKE AN ARCHING ELECTRICAL WIRE. MOST OF THE TIME WHEN THESE SCENARIOS HAPPEN THE DISPLAY ON THE DRIVERS DISPLAY SCREEN READS STABILTRAK WARNING. ALSO WHEN THE PROBLEM OCCURS WHILE TURNING AND BRAKING AT LOW SPEEDS THE TRUCK WILL COMPLETELY LOSE POWER AND POWER STEERING AS WELL AS ASSISTED BRAKING. ONCE THE TRUCK COMES TO A STOP THE IGNITION, AND ALL ELECTRICAL SYSTEMS ARE COMPLETELY UNRESPONSIVE LIKE THE BATTERY IS DEAD. IN ORDER TO START THE TRUCK AGAIN, I HAVE TO GET OUT OF THE TRUCK, OPEN THE ENGINE HOOD AND OSCILLATE BOTH THE NEGATIVE AND POSITIVE BATTERY CABLES. MOST OF THE TIME THE TRUCK WILL START UP AFTER DOING THIS. SOMETIMES I HAVE TO USE BOOSTER CABLES TO GET IT TO START. NEITHER THE CABLES OR THE TERMINAL CONNECTORS ARE LOOSE AS THEY HAVE BEEN INSPECTED BY A DEALER SERVICE TECH AND A LOCAL MECHANIC.

Mileage: 140,000

THE BRAKE GOES HARD TO PUSH WHEN DRIVING OR GOING IN A DRIVE THRU THAT SOME TIME IT DOES NOT WANT TO STOP

Mileage: 177,680

I HAVE A HARD BRAKE PEDAL AND REDUCED BRAKE RESPONSIVENESS.

Mileage: 155,000

TL* THE CONTACT OWNS A 2014 GMC SIERRA 1500. THE CONTACT STATED THAT WHILE REVERSING OUT OF MIDWAY MOTORS BUICK GMC IN NEWTON (1124 WASHINGTON RD, NEWTON, KS 67114) THE BRAKES FAILED WHEN DEPRESSED. THE SERVICE BRAKES ASSIST LIGHT ILLUMINATED. THE CONTACT NOTIFIED THE DEALER HOWEVER, THE DEALER INFORMED THE CONTACT THAT THE VEHICLE ALREADY HAD AN UNKNOWN RECALL REPAIR FOR BRAKES SERVICED AND THE VEHICLE WAS OVER THE WARRANTY COVERAGE. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE MANUFACTURER WAS NOT INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS 150,000.

Mileage: 150,000

WAS IN DRIVEWAY, STARTED THE CAR AND THEN PUT FOOT ON THE BRAKE TO SHIFT INTO DRIVE. AS SOON AS I WAS IN DRIVE I BEGAN TO ROLL FORWARD EVEN THOUGH MY FOOT WAS STILL ON THE BRAKE. I THEN HAD TO REALLY STEP ON THE BRAKE (IT WAS VERY HARD TO APPLY PRESSURE) TO GET IT TO STOP ROLLING. I THEN IMMEDIATELY PLACED IT IN PARK. THIS HAPPENED SEVERAL MORE TIMES THROUGHOUT THE DAY, ONLY AT LOW SPEEDS, OR WHEN SWITCHING FROM THE PARKED POSITION TO DRIVE OR REVERSE. THIS IS EXTREMELY DANGEROUS WHEN TRYING TO PARK (CHILD COULD BE INJURED IN DRIVEWAY) OR SLOWING DOWN IN A PARKING LOT OR COULD CAUSE A COLLISION IN TRAFFIC!

Mileage: 180,000

BRAKE PEDAL GOT HARD AND UNABLE TO STOP

Mileage: 90,000

WHILE EXITING HIGHWAY I ATTEMPTED TO COME TO STOP AND MY BRAKE PEDAL WAS EXTREMELY STIFF AND I HAD TO PUT HARD PRESSURE INTO BRAKE TO COME TO A COMPLETE STOP BEFORE REAR ENDING THE VEHICLE IN FRONT OF ME. LUCKILY, I WAS ABLE TO STOP BEFORE A COLLISION OCCURRED. I WAS ABLE TO GET TO MY DESTINATION ON CITY STREETS, BUT MY BRAKE PEDAL REMAINED EXTREMELY STIFF. I WAS VERY CLOSE TO CAUSING MULTIPLE ACCIDENTS DUE TO THIS BRAKE ISSUE.

Mileage: 106,000

HARD BRAKING REQUIRED TO STOP VEHICLE AT LOW SPEEDS. NO BRAKING AT LOW SPEED.

Mileage: 80,000

BRAKE SYSTEM WILL TURN HARD ONCE PRESSED ON. ABS SYSTEM

TL* THE CONTACT OWNS A 2014 GMC SIERRA 1500. THE CONTACT STATED THAT WHILE ATTEMPTING TO PARK THE VEHICLE, THE BRAKE PEDAL WAS DEPRESSED BUT FAILED TO STOP THE VEHICLE. THE CONTACT STATED NO WARNING LIGHT WAS ILLUMINATED. THE CONTACT STATED THAT HE PUMPED THE BRAKES UNTIL THE VEHICLE STOPPED. THE CONTACT DROVE TO HIS RESIDENCE. THE VEHICLE WAS TAKEN TO FAIRGROUND AUTO PLAZA (100 FAIRGROUNDS RD, ROLLA, MO 65401, (573) 364-1002) WHERE THE CONTACT WAS INFORMED THAT THE VIN WAS INCLUDED IN NHTSA CAMPAIGN NUMBER: 19V645000 (SERVICE BRAKES, HYDRAULIC). THE RECALL REPAIR WAS COMPLETED HOWEVER, THE FAILURE RECURRED INTERMITTENTLY. THE CONTACT STATED THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE MANUFACTURER WAS INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 121,000.

Mileage: 121,000

AT SLOW SPEEDS BRAKE PEDAL IS HARD TO PUSH AND DOES NOT STOP THE VEHICLE. ALMOST CAUSED MULTIPLE ACCIDENTS AT INTERSECTIONS NOT BEING ABLE TO STOP VEHICLE FROM GOING OUT INTO TRAFFIC. DOING RESEARCH THIS HAS HAPPENED ON MULTIPLE GM VEHICLES FROM 2014.

Mileage: 143,000

MY VEHICLE BRAKES BECOME SPONGY OR PEDAL GOES ALL THE WAY IN AND VEHICLE WILL STRUGGLE TO STOP AT LOW SPEEDS. SUCH AS WHEN I PULL INTO A PARKING SPACE OR BACKING UP.

Mileage: 110,000

EXCESSIVE HARD BRAKE PEDAL WHEN DRIVING AT LOWER SPEED, ALMOST GOT IN ACCIDENT WHILE IN TRAFFIC DUE TO TRUCK PEDAL GETTING HARD AND TRUCK WOULD NOT BRAKE. IT ONLY HAPPENS AL LOW SPEED OR DRIVING IN PARKINGLOTS.

Mileage: 105,000

AT LOW SPEED STOPPING I HAVE NO BREAKS, BACKING UP DOWN A BOAT RAMP WITH A BOAT I HAVE NO BRAKES. I HAD THE THE ABS MODULE AND PUMP CHANGED OUT AND STILL HAVE THE SAME PROBLEM.

Mileage: 96,000

SOME TIME TRAVELING BETWEEN 60-70 MPH THE TRUCK HAS A VIBRATION OR SOMETHING, BUT IF I TAP THE BREAK PEDAL IT STOPS. I'VE HAD THIS FOUR TIMES ON THE INTERSTATE. TOOK TRUCK TO THE DEALER, THEY FOUND NO CODE LISTED. JUST THIS WEEKEND AS I WAS EXITING THE INTERSTATE RAMP TO I-71 SOUTH THE TRUCK WAS SLOWING DOWN AND I HAD PULL OFF THE INTERSTATE. IT WAS AS IF THE BRAKING SYSTEM WAS BEING APPLIED, TRUCK WOULD NOT MOVE . BREAK PEDAL WAS VERY HARD TO PRESS. I TURNED THE TRUCK OFF FOR A COUPLE OF MINUTES AND RESTARTED, PEDAL WAS STILL VERY FIRM BUT AFTER PUMPING PEDAL, I HEARD THIS SOUND LIKE YOU WERE PASSING GSS YOURSELF AND THEN THE PETAL WAS BACK TO NORMAL. I WAS LUCKY THAT THIS DID NOT CAUSE A WRECK AS MY SPEED WAS BEING REDUCED TO A SLOW SPEED HAVING TO PULL ON INTERSTATE.

Mileage: 71,500

THE BRAKE PEDALS BECOMES VERY STIFF AT LOW SPEEDS AND DOES NOT BRAKE PROPERLY. I REAR ENDED A VEHICLE AT 15 MILES AN HOUR BECAUSE THE TRUCK DID NOT STOP.

Mileage: 150,000

THIS ISSUE RELATES WITH A RECENT RECALL WITH THE GM BRAKE SYSTEM (NHTSA CAMPAIGN NUMBER: 19V645000 / GM RECALL NUMBER: N192268490). THE RECALL FIX BY GM FAILS TO FULLY FIX THE PROBLEM AS ADDITIONAL REPAIRS ARE REQUIRED TO MAKE THE VEHICLE SAFE AGAIN. THE INCIDENT BEGAN WHEN GOING DOWN A HILL AT LOW SPEED. A MESSAGE CAME ON THE DASH THAT SAID "SERVICE BRAKE ASSIST" AND THE BRAKES SEEMED TO LOSE POWER WHICH REQUIRED THE DRIVER THE USE BOTH FEET TO PUSH DOWN ON THE BRAKE PEDAL TO PREVENT A CRASH INTO THE CAR IN FRONT. THE BRAKES REGAINED NORMAL FUNCTION FOR A WHILE THEN A FEW MILES LATER THE SAME PROBLEM OCCURRED. THIS WENT ON FOR FOR A WHILE LONGER UNTIL THE NEED TO USE BOTH FEET TO ACHIEVE FULL STOPPING POWER WAS PERMANENT. DRIVER PULLED OVER AND, THROUGH AN INTERNET SEARCH, DISCOVERED MANY OTHERS HAD THE SAME PROBLEM AND A RECALL HAD BEEN ISSUED. AN APPOINTMENT WAS MADE WITH A LOCAL GM DEALER AND THE VEHICLE WAS DROPPED OFF FOR REPAIR. THE GM DEALER CALLED THE DRIVER AND INFORMED HIM THAT ADDITIONAL REPAIRS, BEYOND THE RECALL INSTRUCTIONS, WERE REQUIRED FOR THE VEHICLE'S BRAKES TO FUNCTION ADEQUATELY AND SAFELY. THIS INCLUDED REPLACING THE BOOSTER PUMP, BRAKE PADS, TO "RELINE THE FRT BRAKES AS NEEDED."

Mileage: 64,150

INTERMITTENT STALLING, ( COMPLETE SHUT DOWN AT FREEWAY SPEEDS). NO ENGINE, NO POWER STEERING OR BRAKES, WINDOWS WILL NOT OPERATE, NO EMERGENCY FLASHERS, NO DASH RE-OUT, WILL NOT TURN OVER. HAPPENS AT ANY TIME WHILE IN MOTION. HAS PLACED MYSELF, MY WIFE & OTHER DRIVERS IN DANGER NUMEROUS TIMES.

Mileage: 98,000

TL* THE CONTACT OWNS A 2014 GMC SIERRA 1500. WHILE DRIVING APPROXIMATELY 50 MPH DURING INCLEMENT WEATHER, THE VEHICLE SUDDENLY VEERED TO THE LEFT AND CROSSED OVER A LANE. THE VEHICLE SPUN 180 DEGREES AND CRASHED INTO A DITCH. THE REAR PASSENGER WHEEL DISLODGED FROM THE VEHICLE AND WAS LOCATED APPROXIMATELY 150 YARDS FROM THE CRASH SIGHT. THE AIR BAG DID NOT DEPLOY AND THE DRIVER SUSTAINED A BRUISED NECK. MEDICAL ATTENTION WAS NOT RECEIVED. POLICE REPORT NUMBER: SPC32B7N80X WAS FILED AT THE SCENE. THE CONTACT DISCOVERED THAT A 10-INCH SECTION OF THE BRAKE ROTOR WAS MISSING FROM THE VEHICLE. THE VEHICLE WAS RECENTLY SERVICED FOR NHTSA CAMPAIGN NUMBER: 19V645000 (SERVICE BRAKES). THE MANUFACTURER AND HUDSON GMC (2023 SOUTH RD, POUGHKEEPSIE, NY) WERE NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 72,000.

Mileage: 72,000

TOOK IT TO THE DEALER FOR THE RECALL ON THE ABS BREAKS, AND NOW IT IS DOING EXACTLY THE SAME THING THAT IT WAS RECALLED FOR. THE RECALL WAS NOT HELPFUL.

Mileage: 145,000

TL* THE CONTACT OWNS A 2014 GMC SIERRA 1500. WHILE THE CONTACT WAS IN STOP AND GO TRAFFIC, THE BRAKES FAILED. THE CONTACT WAS ABLE TO STEER THE VEHICLE OVER TO THE SIDE OF THE ROAD. THE CONTACT WAITED UNTIL THE TRAFFIC CLEARED UP AND WAS ABLE TO DRIVE AT A NORMAL SPEED WITH THE BRAKES OPERATING NORMALLY. THE DEALER AND MANUFACTURER WERE NOT NOTIFIED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS 117,500.

Mileage: 117,500

TL* THE CONTACT OWNS A 2014 GMC SIERRA 1500. WHILE THE CONTACT'S WIFE WAS DRIVING AT 45 MPH, SHE ATTEMPTED TO STOP THE VEHICLE; HOWEVER, THE BRAKE PEDAL BECAME DIFFICULT TO DEPRESS AND WOULD NOT STOP THE VEHICLE. THE CONTACT'S WIFE CRASHED INTO THE REAR OF ANOTHER VEHICLE. THE AIR BAGS DID NOT DEPLOY. THE CONTACT'S WIFE SUSTAINED MINOR INJURIES THAT CONSISTED OF WHIPLASH. THE CONTACT'S WIFE DID SEEK MEDICAL ATTENTION. THE OTHER DRIVER SUSTAINED BRUISED LEG INJURIES NAD IT WAS UNKNOWN IF MEDICAL ATTENTION WAS SOUGHT. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO A LOCAL MECHANIC WHERE THE COSMETIC DAMAGES WERE REPAIRED. THE CAUSE OF THE FAILURE WAS UNDETERMINED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE CRASH WAS NOT IN RELATION TO ANY OPEN RECALL. THE FAILURE MILEAGE WAS 102,000. THE VIN WAS UNKNOWN.

Mileage: 102,000

TL* THE CONTACT OWNS A 2014 GMC SIERRA 1500. WHILE DEPRESSING THE BRAKE PEDAL TO STOP THE VEHICLE, THE PEDAL WAS VERY DIFFICULT TO DEPRESS AND THE STOPPING DISTANCE INCREASED. THE VEHICLE WAS TAKEN TO ABELOSS GMC (1169 NORTH 9TH ST, STROUGSBURG PA, 18360) WHERE IT WAS DIAGNOSED THAT THE BRAKE BOOSTER WAS FAULTY AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE, BUT NO ASSISTANCE WAS OFFERED. THE FAILURE MILEAGE WAS 80,000.

Mileage: 80,000

I CAME UP TO AN INTERSECTION, PRESSED MY BRAKES, AND THEY WERE HARD TO PRESS CAUSING ME TO RUN THE RED LIGHT AND ALMOST HIT ANOTHER VEHICLE. EVEN IF A PART FAILS, THIS SHOULD NOT BE AN OUTCOME. BRAKE PETAL SO HARD YOU CAN'T GET THE VEHICLE STOPPED.

Mileage: 82,000

BREAKS DO NOT WORK AT LOW SPEED IN REVERSE, BREAK PEDAL GOES ALL THE WAY TO THE FLOOR AND EXCESSIVE PRESSURE MUST BE APPLIED IN ORDER TO STOP VEHICLE, THIS IS EXTREMELY UNSAFE DUE TO LOW VISIBILITY WHEN BACKING THE VEHICLE.

Mileage: 25

BRAKES SUDDENLY LOCK AND THE PEDDLE TO BREAK GETS REALLY STIFF THAT WHEN IM TRYING TO BRAKE IT DOES NOT WORK... I HAVE HAD THIS ISSUE HAPPEN TO ME TWICE ALREADY , I WAS ABLE TO AVOID AN ACCIDENT BECAUSE I USED THE EMERGENCY BRAKE,, I WAS OUT OF TOWN AND WHEN I WAS ARRIVING TO THE HOTEL MY BRAKE PEDDLE LOCKED AND COULD NOT BRAKE THE PARKING CONCRETE STOPPER PREVENTED ME FROM HITTING THR BUILDING , I NOTICED THAT WHEN I SHUT OFF THT TRUCK AND TURN IT BACK ON THRY WORK NORMAL AGAIN AND I AM ABLE TO BRAKE JUST FINE THIS HAPPENS RANDOMLY , I CAN BE ON MY NORMAL ROUTINE FOR A MONTH THEN ALL OF A SUDDEN THE BRAKE PEDDLE GETS STUCK,, IT LOOKS LIKE ITS A SOFTWARE GLITCH LIKE THE STABILITY TRACK TURNING ON WHEN ITS NOT SUPPOSED TO , OTHER PEOPLE ARE HAVING THESE ISSUES WITH THESE TRUCKS, PLEASE INVESTIGATE..

Mileage: 50

BRAKING AT SHORT DISTANCES. VEHICLE CONTINUES TO MOVE AFTER BRAKE IS DEPRESSED.

WHEN TRUCK IS PUT IN REVERSE, ALL POWER BRAKES ARE LOST. ASSUMPTION IS A FAULT VACUUM PUMP

Mileage: 80,000

AT SLOW SPEEDS AND BRAKE PEDAL REQUIRES IMMENSE FORCE (~200LBS) TO PRESS AND ENGAGE BRAKES. SIGNIFICANT GRINDING CAN BE FELT IN THE PEDAL. THIS OFTEN REQUIRES EMERGENCY BRAKE USAGE TO STOP. CONDITION IS INTERMITTENT. OCCASIONALLY HAPPENS IN REVERSE OCCASIONALLY FORWARD WITH WHEEL TURNED OR WITHOUT.

Mileage: 100,000

WHILE BACKING SLOWLY ON A BOAT LAUNCH RAMP, PETAL WAS DEPRESSED ALL THE WAY AND THE TOW VEHICLE DID NOT STOP IMMEDIATELY. FELT AS THOUGH THE PETAL WAS TO THE FLOOR, VEHICLE ROLLED UP TO SEVERAL FEET BEFORE STOPPING. TOWING ROUGHLY 6800 LB. WHICH IS WITHIN SPECIFICATION LIMIT FOR THIS SPECIFIC VEHICLE.

Mileage: 76,500

BRAKE PEDAL RANDOMLY REQUIRES SIGNIFICANTLY HIGHER PRESSURE TO SLOW/STOP THE VEHICLE, PARTICULARLY AT SLOW SPEEDS. HAS HAPPENED 2-3 TIMES OVER THE PAST YEAR AND THIS WEEK IS OCCURRING MORE FREQUENTLY; EVEN DAILY.

Mileage: 77,000

LOSS OF BRAKES AT LOW SPEED, FORWARD AND REVERSE. BRAKE PEDAL GETS STIFF AND BRAKES BARELY STOP THE TRUCK.

Mileage: 20,000

ALL HAPPENED SAME DAY. WAS 8 HOURS FROM HOME AND PULLING INTO PARKING SPOT AND THE BRAKES WENT TO THE FLOOR 3 TIMES. HAS NOT OCCURRED SINCE. BUT WHEN THAT HAPPENED THE AIR STARTED BLOWING WARM AND THE SERVICE DRIVER ASSIST CAME ON BRIEFLY. STILL AIR IS BLOWING WARM AND THE SERVICE DRIVER ASSIST COMES ON. HAVE NEVER HAD A CHECK ENGINE LIGHT COME ON. I AM HAVING IT CHECKED OUT THIS WEEK.

Mileage: 57,860

TWO DIFFERENT TIMES BEING AT LOW SPEED ALMOST A ROLL. WENT TO APPLY BRAKES AND TRUCK BARLEY STOPPED. HARD BRAKE PEDAL, BRAKE PEDAL TO THE FLOOR. ONCE ON A HIGHWAY IN EXTREME HEAVY TRAFFIC ON A DOWN HILL. SECOND TIME ROLLING MAKING A TURN TO PARK IN A PARKING LOT AND ALMOST STRUCK POLICE CAR AND A GAS PUMP.

Mileage: 64,000

AT LOW SPEEDS BRAKING IS VERY HARD CAN BARELY PUSH IN THE BRAKES. SOMETIMES I HAVE TO USE THE EMERGENCY BRAKE. TRUCK HAS 69,000 MILES. AT THE BRAKE PLACE THEY SAID I HAD A BAD VACUUM FOR THE BRAKES AND IS VERY COMMON IN THIS TRUCK

Mileage: 67,000

THE VACUUM ASSIST PUMP ON MY 2014 GMC SIERRA WENT OUT SUDDENLY DURING MY MORNING COMMUTE. THE BRAKE PEDAL BECAME VERY FIRM AND THE BRAKES WERE UNRESPONSIVE. IF I HAD BEEN DRIVING IN AN CONGESTED AREA AN ACCIDENT WOULD LIKELY OCCUR.

Mileage: 125,000

TL* THE CONTACT OWNS A 2014 GMC SIERRA 1500. WHILE DRIVING VARIOUS SPEEDS, THE VEHICLE HESITATED TO DECELERATE AND THE BRAKE BOOSTER WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO AN UNKNOWN DEALER AND THE BRAKE BOOSTER WAS REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 124,000. *BF PURCHASED DATE 08/03/2015 *TP RECEIVED MONEY BACK AND OPENED ANOTHER CASE *TP CASE NO. 9-5610299860. *TP

Mileage: 124,000

I LOST THE USE OF MY BRAKES AT LOW SPEED TODAY, THE PEDAL BECAME EXTREMELY HARD AND NEEDED INCREASED EFFORT TO DEPRESS THE BRAKE PEDAL, TOOK TO A GMC DEALER THEY COULDN'T RECREATE THE SAME ISSUE AND THEY ARE RETURNING MY VEHICLE WITHOUT ANY REPAIRS.

Mileage: 2

BRAKES HAVE NOT BEEN WORKING AT SLOW SPEEDS. THIS HAS BEEN GOING ON FOR A FEW YEARS. BROUGHT IT TO A BRAKE SPECIALIST WHO COULD NOT FIND THE PROBLEM. RESEARCHED IT ON THE INTERNET AND FOUND THAT MANY PEOPLE WERE HAVING PROBLEMS WITH A SIMILAR ISSUE. THEY THOUGHT IT WAS A FAULTY VACUUM PUMP. BROUGHT IT TO GMC BEAMAN IN NASHVILLE, TN AND SAW [XXX] (SERVICE ADVISOR FOR BEAMAN AUTOMOTIVE). THEY REPORTED THEY WERE NOT WILLING TO FIX THE ISSUE AND THAT IT WOULD BE CLOSE TO $1000 TO FIX IT. I FIND THIS UNACCEPTABLE AFTER DOING RESEARCH AND FINDING THAT GMC'S PARTS (NOT WEAR AND TEAR) ARE MORE LIKELY THAN NOT THE ETIOLOGY OF THE PROBLEM. I ASK THAT THE DEALERSHIP BE CONTACTED REGARDING THIS GIVEN THE OBVIOUS SAFETY RISK OF THE LARGE VEHICLE NOT BEING ABLE TO STOP. REGARDS, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TT *TR

Mileage: 60,000

BRAKE PEDAL BECAME VERY STIFF AND UNRESPONSIVE AT LOW SPEED. ALMOST HIT ANOTHER VEHICLE. HAD TO USE EMERGENCY BRAKE TO COME TO COMPLETE STOP. ONLINE FORUMS SAY BRAKE VACUUM PUMP.

Mileage: 50,000

BRAKE PEDAL GOT HARD , THE DASH CENTER GAVE NO WARNING AND STILL HAS NO FAULT LIGHT OR ANY BRAKE WARNINGS LIGHTS. WE WHERE DRIVING ON A CITY STREET ,WHEN THE BRAKES STOPPED WORKING, DRIVING THROUGH A RED LIGHT BECAUSE WE COULDN'T STOP THE VEHICLE AND POPPED THE STREET CURB, INTO AN EMPTY PROPERTY LOT

Mileage: 30

ON TWO SEPARATE OCCASIONS, EACH AT THE END OF A TWO HOUR DRIVE, I WAS PULLING INTO A PARKING SPACE AND LOST ALL POWER TO MY BRAKES. THEY DID NOT DEPRESS TO THE FLOOR, THEY SEEMED TO ALMOST PUSH BACK. AT THAT POINT I PUSHED HARDER AND THE BRAKE PUSHED TO THE FLOOR. IN BOTH INSTANCES I ALMOST HIT THE PARKED CARS NEXT TO ME. DUE TO NOT HAVING PROPER BRAKING I HAD TO BACK UP AND PULL BACK IN, BRAKES CONTINUED TO DO THE SAME THING. AFTER COMING BACK TO MY TRUCK IN BOTH INSTANCES, ONCE AFTER A WEEK AT THE AIRPORT AND ANOTHER AFTER A FOUR HOUR APPOINTMENT, MY BRAKES WORKED FINE. THIS HAPPENED ON JULY 16, 2018 AND APRIL 11, 2019.

Mileage: 67,000

HARD BRAKE PEDAL AT LOW SPEEDS. FORWARD OR REVERSE

Mileage: 57,000

THE BRAKES ON MY TRUCK FAILED AND I HIT MY BRICK MAILBOX. I TOOK IT TO A SERVICE CENTER AND THEY SAID THE VACUUM PUMP WAS NOT PRODUCING ENOUGH PRESSURE AT LOW RPMS.

Mileage: 86,000

WAS DRIVING THROUGH DUNKIN DONUTS DRIVE THRU WHEN LOST MY BRAKES. HAD TO PRESS THE BREAK PEDAL AS HARD AS I COULD TO GET THE TRUCK TO STOP. THE TRUCK CONTINUED TO ROLL AFTER DOING SO ALMOST HITTING CAR IN FRONT OF ME. THEN SOUNDED LIKE ABS PUMP KICKED KN. THEN EVERYTHING WENT BACK TO NORMAL.

Mileage: 55,000

TL* THE CONTACT OWNS A 2014 GMC SIERRA 1500. WHILE DRIVING BETWEEN 10-15 MPH, THE VEHICLE WOULD NOT STOP WHEN THE BRAKE PEDAL WAS DEPRESSED. BECK & MASTEN BUICK GMC NORTH (11300 FM 1960 W, HOUSTON, TX 77065) STATED THAT THE VEHICLE WAS NOT INCLUDED IN ANY OPEN RECALLS. THE MANUFACTURER WAS NOT CONTACTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS 57,000.

Mileage: 57,000

BRAKES WILL JUST LOCK UP AND HAS ALREADY CAUSE ME A COUPLE OF WREAKS, GM SHOULD REALLY FIX THIS BRAKE ISSUE..IT'S A SAFETY ISSUE FOR SURE AND THEY SHOULD BE HELD RESPONSIBLE.. GM SEEMS TO HAVE GONE TO FOR CRAPPY WORKMANSHIP AND POOR CUSTOMER SERVICE!!!!

Mileage: 103,000

VACUUM PUMP ON BRAKES WENT OUT WHILE DRIVING DOWNHILL IN A CANYON. COULD HAVE BEEN A LOT WORSE IF WEATHER CONDITIONS WERE NOT GOOD.

Mileage: 79,000

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

Mileage: 86,900

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.

Mileage: 81,203

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

Mileage: 65,000

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 WOULD MAKE THE VEHICLE SUDDENLY STOP. I HAVE NOT HAD THIS ISSUE SINCE. I HAVE NOT RETURNED TO THE BALLPARK YET, BUT I HAVE BEEN IN TRAFFIC JAMS AND BEEN TO OTHER ENTERTAINMENT EVENTS WHICH WOULD SIMULATE THE SAME SITUATIONS.

Mileage: 75,000

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.

Mileage: 76,470

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

Mileage: 56,743

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.

Mileage: 58,000

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

Mileage: 57,000

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

Mileage: 44,000

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.

Mileage: 90,000

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.

Mileage: 40,256

"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.

Mileage: 130,000

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 HOOD NEEDING REPLACEMENT IF THE OIL SEEPED THROUGH THE PUMP, I PROMPTLY REPLACED THE VACUUM PUMP. FOLLOWING THE REPAIR PROCEDURE PRESCRIBED IN THE GM BULLETIN THERE WAS NO ENGINE OIL NOTED IN THE VACUUM LINE SO NO FURTHER PARTS WERE REPLACED OTHER THAN THE PUMP AND GASKET. CONDITION HAS NOT REPEATED AFTER REPLACING PUMP 1K MILES AGO. VEHICLE HAD APPROX. 65K MILES WHEN THIS CONDITION OCCURRED.

Mileage: 65,000

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.

Mileage: 119,000

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.

Mileage: 66,600

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

Mileage: 20,500

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

Mileage: 49,000

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.

Mileage: 126,000

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.

Mileage: 99,000

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

Mileage: 48,500

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

Mileage: 65,700

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.

Mileage: 50,000

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.

Mileage: 89,000

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.

Mileage: 84,000

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.

Mileage: 23,799

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.

Mileage: 40,000

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

Mileage: 118,000

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.

Mileage: 69,500

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.

Mileage: 105,000

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....

Mileage: 65,000

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.

Mileage: 5,000

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.

Mileage: 27,000

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.

Mileage: 63,000

I HAVE HAD PROBLEMS WITH MY BRAKES FOR THE LAST 3 YEARS. I ALREADY HAD BY BRAKES FIXED MY GM BECAUSE OF A BAD SQUEAK WHEN PRESSING ON MY BRAKES. I RECENTLY JUST CHANGED MY MASTER CYLINDER BECAUSE THE BRAKE PEDAL WOULD GET STUCK ON CERTAIN OCCASIONS WHEN DRIVING. SOMETIMES HAVING ME TO USE THE EMERGENCY BRAKES. SOMETIMES I WOULD HAVE THE BRAKE PEDAL ALL THE WAY DOWN AND THE TRUCK WOULD STILL KEEP MOVING. IT WOULD HAPPEN SPORADICALLY. MOST OF THE TIME WHEN I AM DRIVING IN TRAFFIC OR THROUGH A PARKING LOT.

Mileage: 59,000

TL* THE CONTACT OWNS A 2014 GMC SIERRA 1500. WHILE DRIVING AT LOW SPEEDS, THE BRAKES FAILED TO STOP THE VEHICLE WHEN THE BRAKE PEDAL WAS DEPRESSED. THE CONTACT STATED THAT THE BRAKE PEDAL HAD TO BE DEPRESSED WITH FORCE TO OPERATE CORRECTLY. THE VEHICLE WAS TAKEN TO HENSON CHEVROLET BUICK GMC (201 N MAY ST, MADISONVILLE, TX 77864, (866) 551-9977) WHERE IT WAS DIAGNOSED THAT THE BRAKE BOOSTER VACUUM PUMP NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 23,000. *TT CONSUMER STATED BRAKING FAILURE HAPPENED ON THE RESIDENCE DRIVEWAY. *JB

Mileage: 23,000

WHEN BRAKING AT SLOW SPEEDS, LIKE WHEN IDLING IN TRAFFIC OR ROLLING THROUGH A PARKING LOT, WHEN THE BRAKE PEDAL IS DEPRESSED IT IS VERY HARD, LIKE WHEN PRESSING THE BRAKE PEDAL WITH THE VEHICLES ENGINE OFF. AT TIMES I HAVE HAD TO USED BOTH FEET TO PRESS THE BRAKE PEDAL THE TRY AND STOP THE VEHICLE. THE VEHICLE IS ALSO VERY HARD TO STOP WHEN THIS ISSUE OCCURS.

Mileage: 63,000

WHILE DRIVING MY TRUCK AT SLOW SPEEDS AND APPLYING BRAKES, THE BRAKE PEDAL WILL GET HARD AND UNABLE TO STOP VEHICLE. IT HAS OCCURRED WHILE BACKING A TRAILER TOWN HILL TOWARDS A LAKE AND I WAS UNABLE TO STOP THE TRUCK ONLY ABLE TO HAVE FRIEND BLOCK THE TIRE SO I COULD PUT IN DRIVE. IT HAS OCCURRED WHILE APPROACHING STOP SIGNS AND ALSO FREQUENTLY IN PARKING LOTS.

Mileage: 101,000

VERY HARD BRAKE PEDDLE. LIMITED TO NO BRAKING ABILITY WHEN CONDITION EXISTS. GOING SLOW BACKING UP WITH TRAILER, FORWARD GOING SLOW. IF FOOT ON BRAKE FOR EXTENDED TIME AT STOP LIGHT BRAKING ABILITY ABATES, PEDDLE VERY VERY HARD. BRAKES UNABLE TO STOP VEHICLE NO MATTER HOW MUCH PRESSURE PUT ON BRAKE PEDDLE.

Mileage: 63,455

TL* THE CONTACT OWNS A 2014 GMC SIERRA 1500. WHILE DRIVING 70 MPH, THE VEHICLE STALLED AND THE STABILITRAK WARNING INDICATOR ILLUMINATED. IN ADDITION, THE STEERING WHEEL AND BRAKES SEIZED. THE CONTACT POWERED OFF THE ENGINE WHILE IN TRAFFIC. THE VEHICLE WAS RESTARTED AND DROVE NORMALLY. THE CONTACT STATED THAT THE FAILURE RECURRED NUMEROUS TIMES. THE VEHICLE WAS TAKEN TO COVERT BUICK GMC (LOCATED AT 11750 RESEARCH BLVD, AUSTIN, TX 78759, (512) 583-3411) WHERE DIAGNOSTIC TESTING WAS COMPLETED, BUT NO FAILURE CODE WAS FOUND. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 103,000.

Mileage: 103,000

WHILE TAPPING THE BRAKES, THE VEHICLE'S HEADLIGHTS WILL DIM OCCASIONALLY. 2 TIMES NOW WHILE TAPPING THE BRAKES, THE ENTIRE DASHBOARD (INCLUDING THE TOUCHSCREEN) TURN OFF AND RESTART. THE FIRST TIME WAS TRAVELLING ON A HIGHWAY AND THE SECOND TIME WAS ON MY DRIVEWAY, I APPLIED THE BRAKES AND THE ENTIRE CAR SHUT DOWN, INCLUDING THE POWER STEERING, POWER BRAKES, AND ENGINE. THAT TIME I ROLLED OUT OF MY DRIVEWAY AND INTO THE ROAD. I WAS LUCKY NO ONE WAS COMING

Mileage: 25

MY 2014 GMC SIERRA IS HAVING A MAJOR BRAKE ISSUE. I REPLACED THE BRAKE PADS AFTER BEING TOLD THE PADDING WAS LOW. THIS DID NOT FIX THE PROBLEM. MY TRUCK DOES NOT SLOW DOWN WHEN BRAKING ON A HILL. I READ IN ANOTHER ARTICLE THAT THE VACUUM PUMP GOES OUT AT A LOW RPM, CAUSING THE TRUCK NOT TO STOP. UNFORTUNATELY, MY WIFE WAS DRIVING MY TRUCK DOWN THE DRIVEWAY, AND COULDN'T STOP. THIS ISSUE ALMOST CAUSED HER TO HIT ANOTHER VEHICLE THAT WAS PASSING AT THE END OF THE DRIVEWAY.

Mileage: 68,480

DRIVING AT 55 MILES PER HOUR LOST BRAKE FUNCTIONS. WAS ABLE TO SLOW DOWN ON SIDE OF HIGH , AND HAD TRUCK TOWED TO NEAREST SHOP. FOUND THAT VACUUM PUMP AND BELT WERE BROKEN . VER CONCERNED THAT A BELT BRAKES AND YOU CAN NOT STOP. HAVE REPORTED ISSIE TO GMC

Mileage: 90,000

WHILE TAPPING THE BRAKES, THE VEHICLE'S HEADLIGHTS WILL DIM. OCCASIONALLY, WHILE TAPPING THE BRAKES, THE ENTIRE DASHBOARD (INCLUDING THE TOUCHSCREEN) TURN OFF AND RESTART. ON 6/18/18, WHILE TRAVELLING ON A HIGHWAY AT 40 MILES AN HOUR AND APPROACHING A RED LIGHT, I APPLIED THE BRAKES AND THE ENTIRE CAR SHUT DOWN, INCLUDING THE POWER STEERING, POWER BRAKES, AND ENGINE. I HAD TO PLACE THE CAR INTO NEUTRAL AND TURN IT BACK ON IN ORDER TO BRAKE IN TIME.

Mileage: 36,500

WHILE DRIVING WENT TO STOP AT SERVICE STATION BRAKES WOULD NOT WORK AS THEY SHOULD ,HAD TO PUSH ON PEDAL VERY VERY HARD TO STOP ALMOST RAN OVER GASOLINE PUMP.DEALER SAYS IT MAY BE VAC LEAK OR PUMP.VERY BAD SITUATION DANGEROUS GM SHOULD REPAIR IT MY DEALER IS MITCHELL BUICK GMC IN SAN ANGELO TX

Mileage: 150,000

60K MILES. SERVICE BRAKE ASSIST LIGHT CAME ON AFTER 1 HOUR DRIVE. AT LOW SPEEDS, BRAKE PEDAL IS EXTREMELY DIFFICULT TO DEPRESS (AS IF NO POWER BRAKES ON ANTIQUE VEHICLE), TRUCK DOES NOT STOP AS NEEDED. DIAGNOSTIC CHECK FROM ONSTAR DOES NOT SHOW ANY CODE.

Mileage: 60,100

VACUUM SYSTEM ON THE BREAKS ARE LOOSING PRESSURE CAUSING THE BREAKS TO BECOME NEARLY IMPOSSIBLE TO DEPRESS. I HAVE RUN IN TO MY FENCE CAUSING MINOR DAMAGE. THIS HAPPENED WHEN I WAS AT A SNAILS PACE, COULDN'T IMAGINE IT HAPPENING AT A HIGHER SPEED GM IS AWARE OF THE FIX BUT AT MY COST OF OVER 750.00. THERE HAVE BEEN NUMEROUS COMPLAINTS TO THE DEALERSHIPS AND ON GM FORUMS. THIS PROBLEM NEEDS TO BE ADDRESSED. I'M GLAD NO ONE WALKED IN FRONT OF ME WHEN THIS HAPPENED.

Mileage: 67,000

GM HAS A MAJOR PROBLEM WITH THE VACUM PUMP FAILING ON THE 2014 AND UP 1500 SERIES TRUCKS. GM HAS ISSUED A SERVICE BULLENTIN PIT5361 FOR THIS ISSUE. WHEN THE VACUM PUMP FAILS THE BRAKES BECOME ALMOST IMPOSSIBLE TO APPLY. AFTER RESEARCHING THE PROBLEM IT IS A VERY WELL KNOWN ISSUE THAT MANY HAVE HAD. MY GMC STARTED THIS AT ABOUT THE 49,500 MILE SPOT AND HAS CAUSED ME TO STRIKE A WALL AND ALMOST A PEDESTRIAN IN A PARKING LOT. THANKFULLY I WAS ON MY TOES AND AVOIDED HITTING THE PEDESTRIAN. IM A BIG MAN AT ABOUT 265LBS. WHEN THE BRAKES FAIL TO WORK I CANT PRESS THE PEDAL HARD ENOUGH WITH BOTH FEET TO STOP THE VEHICLE. IM CURRENTLY WAITING ON GM TO RETURN A CALL FOR ASSISTANCE IN FIXING THE PROBLEM AS THIS IS A COSTLY FIX. BRAKING IS A VITAL AND HIGH SAFETY FEATURE ON A VEHICLE. WHY THIS HASNT BEEN ADDRESSED BEFORE A FAMILY IS KILLED IS BEYOND ME. ISSUING A SERVICE BULLENTINE INSTEAD A RECALL FOR SUCH A VITAL PART A VEHICLE IS RECKLESS.

Mileage: 49,500

LOSS OF POWER BRAKES AT LOW SPEED ESPECIALLY IN TRAFFIC AND PARKING WITH REPEATED APPLICATION OF BRAKES, PEDAL BECOMES VERY HARD AND REQUIRES MUCH PRESSURE TO MAKE VEHICLE STOP, IN REVERSE GRINDING IS ALSO HEARD. MECHANIC SAYS BELT DRIVEN VACUUM PUMP MAY BE DEFECTIVE, OTHER COMPLAINTS AND BULLETINS ARE STATING ALL COMPONENTS MUST BE REPLACED, I WOULD THINK A $58000 TRUCK SHOULD LAST MORE THAN 64K MILES BEFORE NEEDING ALL THE MAJOR BRAKE COMPONENTS CHANGED. IF YOU DON'T HAVE VERY STRONG LEGS WHEN THIS HAPPENS YOU ARE GOING TO CRASH..SHOULD BE A RECALL

Mileage: 60,000

WHILE IN MOTION THE BRAKE PEDAL BECOMES HARD, WILL CONTINUE TO ROLL, AND MAKES & FEELS LIKE THE BRAKE PAD ARE GRINDING.

Mileage: 54,151

TRIED TO STOP TUCK WHEN PARKING. BRAKES WERE EXTREMELY HARD AND TRUCK CAME TO A SLOW STOP WHILE I WAS MASHING THE BREAKS WITH ALL MY MIGHT. THERE WAS BREAK FLUID ALL AROUND RIGHT FRONT TIRE. DEALERSHIP FOUND ENGINE OIL IN VACUUM LINE OF VACUUM PUMP DUE TO VALVE STUCK IN PUMP CAUSING HARD BRAKE PEDAL. REPLACED VACUUM PUMP, PIPE, BRAKE BOOSTER AND MASTER CYLINDER, FLUID.

Mileage: 72,508

COMING TO A STOP IN A PARKING LOT THE BRAKE PEDAL BECAME VERY HARD AND WOULD NOT STOP THE FORWARD MOTION OF THE TRUCK. THE TRUCK HIT THE CURB STOPPING ITS FORWARD MOTION. NO DAMAGE TO THE THE TRUCK. I HAD THE PROBLEM DIAGNOSED AS A BAD BRAKE VAC PUMP. THE PUMP WAS REPLACED FOR 496.00 . THE TRUCK ONLY HAD 26000 MILES , I HAVE TOLD THAT THIS IS NOT THAT UNCOMMON.

Mileage: 26,000

HARD BRAKE PEDAL AT LOW SPEEDS CAUSING THE TRUCK TO NOT STOP. DEALERSHIP SAYS A FULL BRAKE SYSTEM REPLACEMENT IS NEEDED. I'VE SERACHED ONLINE AND THERE ARE SEVERAL PEOPLE HAVING THIS SAME ISSUE. IT SEEMS TO BE VERY COMMON, BUT NOTHING IS BEING DONE ABOUT IT BY GMC.

Mileage: 81,000

2014 GMC SIERRA 1500 DENALI PICK-UP TRUCK WITH 67,900 MILES: EXPERIENCED COMPLETE LOSS OF POWER BRAKES IN STOP-N-GO TRAFFIC SITUATION ON HIGHWAY. PROBLEM STARTED AS AN RARE ISSUE THAT WOULD CORRECT ITSELF AND PROGRESSIVELY GOT WORSE OVER A WEEK'S TIME. ISSUE OCCURRED WHEN IN TRAFFIC REQUIRING FREQUENT STOP-N-GO BRAKING. BRAKE PEDAL WENT COMPLETELY TO THE FLOOR AND STOPPING DISTANCES DRAMATICALLY INCREASED. HAD NO WAY TO MANUALLY APPLY THE BRAKES TO GET THEM FULLY ENGAGED. ULTIMATELY FORCED TO SHIFT INTO NEUTRAL AND APPLY PARKING BRAKE TO STOP. SUBSEQUENTLY FOUND GM BULLETIN #PIT5361B REFERRING TO OTHER CUSTOMER PROBLEMS WITH WEAK VACUUM AT BRAKE BOOSTER. THAT PROBLEM WAS CONFIRMED AND DIAGNOSED BY MY AUTOMOTIVE PROFESSIONAL. ENDED UP HAVING TO REPLACE BRAKE MASTER CYLINDER, VACUUM BOOSTER, VACUUM PUMP, VACUUM TUBE/PIPE AND 2 SERPENTINE BELTS FOR A GRAND TOTAL OF $1626.00 IN REPAIR WORK (SIMILAR AMOUNT TO THE OTHERS I FOUND WHO EXPERIENCED THIS ISSUE). TALKED TO MY GMC DEALER WHO CONFIRMED THAT THIS IS A RECOGNIZED ISSUE THAT HASN'T YET RISEN TO THE LEVEL OF A "SAFETY RECALL". HOWEVER, I WAS TOLD "STAY TUNED" BECAUSE THEY WOULDN'T BE SURPRISED IF A RECALL ON THE POWER BRAKE SYSTEM WAS RIGHT AROUND THE CORNER.

Mileage: 67,900

HAD THE RECALL FOR THE LOW MANEUVER TURNING ISSUE PERFORMED AT A DEALERSHIP WHEN I HAD MY OIL CHANGED ON AUGUST 15, 2017. LESS THAN A WEEK LATER THE ISSUE OCCURRED WHEN TURNING INTO THE DRIVEWAY AND DEALERSHIP WILL NOT HONOR MY COMPLAINT TO FIX IT. THE STATEMENT I HEAR IS "WE CAN'T DUPLICATE THE PROBLEM" BUT I'M TELLING THEM IT HAPPENED. EITHER THE PROCEDURE TO RECTIFY THE RECALL ISN'T WORKING OR THEY DIDN'T PERFORM IT CORRECTLY. I NEED HELP.

Mileage: 50,900

ROUNDING A CORNER AT LOW SPEED AND THE A/C COMPRESSOR LOCKED UP AND STALLED THE ENGINE. I LOST STEERING AND BRAKES NEARLY HIT A POLE. SEARCH FOR THIS ISSUE AND YOU WILL SEE THAT GM HAS A KNOWN ISSUE ON THE 2014 A/C UNITS THAT THEY ARE DOING NOTHING ABOUT

Mileage: 56,000

TAKATA RECALL. DRIVING THROUGH THE SMOKY MOUNTAINS BRAKE PEDAL WENT ALL THE WAY TO THE FLOOR AND DIDNT STOP. I RELEASED PEDAL AND PRESSED AGAIN AND IT WAS VERY FIRM AND HARD TO GET THE TRUCK TO SLOW DOWN/ STOP. WHEN THIS OCCURRED THE SYSTEM SHOWED NO SIGNS OF SYSTEM FAILING. IF WAS A VERY SCARY SITUATION WITH HAVING MY FAMILY IN THE TRUCK WITH ME. IM VERY THANKFUL THAT IT DIDNT END A LOT WORSE LIKE IT COULD HAVE. ALL IN ALL I DROVE 4 HOURS TO GATLINBURG WITH NO SIGNS OF ISSUES AND FOR IT TO JUST GO OUT WITHOUT A WARNING SOMETHING NEEDS TO BE DONE.

TL* THE CONTACT OWNS A 2014 GMC SIERRA 1500. WHILE DRIVING 15 MPH, THE BRAKE PEDAL WAS DEPRESSED UPON COMING TO A RED LIGHT BUT FAILED TO RESPOND WITHOUT WARNING. THE CONTACT WAS ABLE TO STOP THE VEHICLE AFTER DOWNSHIFTING AND DEPRESSING THE BRAKE PEDAL. THE VEHICLE WAS TOWED TO A DEALER WHERE IT WAS DIAGNOSED THAT THE BRAKE ASSIST FAILED AND NEEDED TO BE REPAIRED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 34,000. THE VIN WAS NOT AVAILABLE.

Mileage: 34,000

INTERMITTENTLY, WHEN APPLYING THE BRAKES TO STOP FOR A RED LIGHT, THE ENGINE WANTS TO KEEP THE VEHICLE GOING AT THE SAME SPEED AND FIGHTS THE BRAKE SO THE VEHICLE CANNOT STOP. SHIFTING THE GEAR SHIFT INTO NEUTRAL ALLOWS THE BRAKES TO WORK BUT THE ENGINE RPM REVS UP TO 2500 RPM FOR ABOUT 15 SECONDS BEFORE DROPPING TO IDLE. IF THE DRIVER DIDN'T APPLY THE BRAKES HARD ENOUGH OR SHIFT INTO NEUTRAL, THE VEHICLE WOULD OVERPOWER THE BRAKES AND DRIVE INTO ANYTHING AHEAD. ANALOGY: IT ACTS AS IF THE CRUISE CONTROL WAS ON (AND IT'S NOT) AND TRIED TO KEEP THE SAME FORWARD SPEED NO MATTER THE BRAKE APPLICATION. DEALER CANNOT REPRODUCE THE PROBLEM, NO ALERT WARNING LIGHT. SOME TIMES, GOING AT HIGHWAY SPEED, TAKING FOOT OFF ACCELERATOR AND EXPECTING VEHICLE TO START SLOWING DOWN, IT STAYS AT SAME SPEED FOR ABOUT 15 SECONDS BEFORE DROPPING RPMS. THIS HAS BEEN HAPPENING, INTERMITTENTLY, FOR A FEW MONTHS.

Mileage: 35,000

TL* THE CONTACT OWNS A 2014 GMC SIERRA 1500. THE CONTACT STATED THAT WHILE DRIVING AT 65 MPH, THE CONTACT ATTEMPTED TO DEPRESS THE BRAKE PEDAL BUT IT FAILED TO RESPOND. THE CONTACT HAD TO APPLY EXTREME FORCE TO THE BRAKE PEDAL AND SHIFT THE GEAR SHIFTER INTO NEUTRAL IN ORDER TO GET THE VEHICLE TO STOP. THE VEHICLE WAS TAKEN TO A DEALER, WHO DIAGNOSED THAT THE BRAKE BOOSTER NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 153,758.

Mileage: 153,758

DUE TO A PROBLEM WITH BRAKE BOOSTER VACUUM SENSOR AND BRAKE BOOSTER LARGE VACUUM LEAK, EXTRA PRESSURE IS NEEDED TO APPLY BRAKES. BRAKES ARE ESSENTIALLY NON EXISTENT IN VEHICLE. PROBLEM DIAGNOSED BY DEALER. DEALER STATES THIS IS NOT A NORMAL PROBLEM WITH THE BRAKING SYSTEM. THIS IS A SAFETY ISSUE ESPECIALLY WHEN DRIVING AND THIS UNEXPECTEDLY HAPPENS. VEHICLE WAS IN MOTION WHEN THIS HAPPENED DRIVING AT APPROXIMATELY 45 MPH. I UNDERSTAND THIS WAS A SIMILAR PROBLEM WITH THE 2014 MALIBU. REPLACEMENT PARTS ARE ON ORDER UNKNOWN WHEN EXPECTED DUE TO THIS NOT BEING A PART REGULARLY REPLACED (PER DEALER).

Mileage: 50,700

TL* THE CONTACT OWNS A 2014 GMC SIERRA 1500. THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 20 MPH, THE STEERING WHEEL SEIZED AND VEERED INDEPENDENTLY. IN ADDITION, SEVERAL UNKNOWN WARNING INDICATORS ILLUMINATED. THE CONTACT WAS ABLE TO REGAIN CONTROL AFTER DEPRESSING THE BRAKE PEDAL. THE FAILURE RECURRED AND THE STABILITY TRAC, AND THE SERVICE TRAILER BRAKE WARNING LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT A EXCESSIVE VOLTAGE DROP RESULTED IN A LOSS OF POWER WITH THE MANUAL TRAILER BRAKE, THE BCM, ELECTRONIC BCM, ECM, STEERING. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 27,416.

Mileage: 27,416