2015 Chevrolet Tahoe Brakes

After a 7 hour road trip and returning to local stop and go travel in our hometown, the brakes started vibrating and the brake pedal then went hard. It took a severe downward foot thrust to get the vehicle to stop and even then still continued to roll forward a few feet. The brakes remained hard thereafter and not safe to drive- unable to brake at that point. Luckily we were not in traffic at that time or still on our road trip otherwise I am sure there would have been a serious wreck or fatality. Dealership supposedly took care of the recall repair for the vacuum pump previously but apparently their action was not sufficient. What am I supposed to do about it now? Thank you.

Brake assist problems. When stopping/slow braking while being in heavy traffic, or drive thru, the brakes will vibrate and will not come to a complete stop without it rolling, almost into another vehicle. The brake petal will be stiff and the vehicle will continue to roll. This happens a lot, but seems to only happen during stop/start, bumper to bumper situations.

At low speeds, mainly backing up, the brake pedal goes soft and the vehicle will not stop. As you push harder, the pedal becomes stiff and you feel the ABS activate. I have read online that this is a common problem with the 2015-2016 GM models. Apparently the vacuum pump is the root cause however many have stated if oil is found, the Vacuum Line between the booster and the pump 3. Brake Booster 4. Master Cylinder 5. Vacuum Pump Belt should be changed as well.

While in reverse, at a slow speed, my vehicle still rolls while pressing the brake. I almost hit my daughter’s dance studio. It’s happened many times now and after checking, there is a recall on the software but not the part to fix this. Apparently the software doesn’t fix it because my vehicle software has been updated. I can’t help but think I could’ve backed into a child at her dance studio. Very dangerous for my family and others. Also it’s frustrating to not feel safe driving.

BRAKING SYSTEMS NOT WORKING PROPERLY. THE VEHICLE FAILED TO STOP WHEN APPLYING THE BRAKE PEDAL. ALL BRAKE PADS ARE GOOD; BRAKE CALIPERS ARE NEW; BRAKE FLUID IS AT MAX. I REPLACED EVERYTHING I FOUND ONLINE, BUT THE ISSUE IS THERE ON THE VEHICLE.

On 10-9-2021 was driving slowly 5-10 MPH in a parking lot and pressed brake and the brake pedal was very hard to press down. Had to really press it hard to stop the 2015 Tahoe LTZ. Had the Tahoe towed to Firestone and they said it was the vacuum pump. Wanted to make sure there was not a recall on the vacuum pump.

At low rate of speed the brake pedal becomes hard to press when attempting to stop. Vibrating feeling and clicking noise can be heard from brake pedal.

AT LOW SPEEDS (LESS THAN 10 MPH) BRAKES (ABS AND POWER ASSIST) HAVE FAILED WHEN IN REVERSE ON SLIGHT INCLINE. MOST RECENTLY (4/20/2021) THE SAME ISSUE OCCURED WHEN MOVING FORWARD, AT APPROXIMATELY 5-7 MPH, WHILE ON APPROX 8% DOWNHIL GRADE. THE ROAD SURFACE WAS NON-PAVED, MIXED DIRT/GRAVEL. THIS ISSUE OCCURED MULTIPLE TIMES, HOWEVER, DURING 2 OF THE OCCURANCES THE VEHICLES WOULD NOT COME TO A COMPLETE STOP AND WAS THOUGHT TO HAVE CONTINUED OVER THE EDGE OF ROAD INTO CANYO IF NOT FOR AN EXTREME CHOICE FORWARD PATH TO NAVIGATE THURN. THIS "ROAD" WAS THE WHITE RIM ROAD IN CANYON LANDS NATIONAL PARK, UTAH.

BRAKES DID NOT WORK. IT FELT LIKE I WAS PUSHING THROUGH CONCRETE. HAD TO SWERVE TO AVOID COLLISION. HAD TO SHIFT TO M TO SLOW VEHICLE DOWN WHILE PUSHING WITH BOTH FEET TO COME TO A COMPLETE STOP.

YESTERDAY WHILE DRIVING AT A LOW SPEED, SLOWING TO A STOP, THE BRAKES FELT VERY HARD AND DIFFICULT TO PRESS TO STOP. I CONTINUED TO DRIVE FOR THE REMAINDER OF THE DAY AND IT SEEMED TO STOP FINE AT HIGHER SPEEDS BUT SLOWING OUT OF DRIVEWAY OR INTO PARKING LOTS IT WAS VERY DIFFICULT TO STOP. EVEN AT STOP SIGNS, I HAD TO START HITTING THE BREAKS WELL AHEAD OF THE SIGN IN HOPES THAT IT ACTUALLY STOPPED BY THE TIME I GOT TO SIGN. IT SEEMED TO GET WORSE. CALLED DEALER AND LEFT MESSAGE. CALLED AGAIN AND SERVICE DEPARTMENT WAS CLOSED FOR THE WEEKEND. LIKELY IT WILL NEED TO BE TOWED TO THE DEALER. I DON'T THINK IT IS SAFE TO DRIVE.

While pulling forward in a drive thru, slowing to stop, the brake pedal started vibrating and became very hard to press. Came within inches of hitting the vehicle in front of me. I drove to an empty parking area afterwards and was able to reproduce the problem several times. This only seems to happen at low speeds. The brake assist warning light comes on each time this occurs. The vehicle has not yet been inspected by manufacturer or mechanic. I'm filing this complaint because this is a major safety issue. This is not an isolated problem to my vehicle as I have seen that many others have filed the same complaint with the 2015 Tahoe.

WHEN TRYING TO BRAKE AT LOW SPEEDS THE BRAKES LOCK UP AND FEEL LIKE YOU OR PUSHING THROUGH CONCRETE. IT IS TERRIFYING WHEN YOU ARE COMING DOWN A HILL, PULLING A TRAILER, WITH YOUR KIDS IN THE CAR. THIS HAPPENS FREQUENTLY! I HAVE HAD THE BRAKES PADS AND ROTORS REPLACED WITH NO CHANGES. PRETTY FRUSTRATING WHEN YOU SPEND $50,000 ON A VEHICLE AND NO ONE CAN TELL YOU WHAT THE PROBLEM IS.

EVEN WITH THE RECALL DONE THE BRAKES DO NOT STOP THE VEHICLE ON THE SECOND BRAKE APPLICATION IF YOU ARE AT SLOW SPEEDS. IF YOU BRAKE AT SLOW SPEEDS RELEASE THE PEDAL AND BRAKE AGAIN YOU VIRTUALLY LOSE ALL BRAKE POWER.

WHILE IN LINE AT A RESTAURANT BRAKES BECAME HARD TO PUSH ,CHATTERED AND THE VEHICLE WAS HARD TO STOP. THE VACUUM PUMP IS THE PROBLEM THERE IS A RECALL ON THIS YEAR AND MAKE BUT MINE IS NOT COVERED .NHTSA CAMPAIGN NUMBER: 19V645 AND 20V603

TL* THE CONTACT OWNS A 2015 CHEVROLET TAHOE. THE CONTACT STATED THE VEHICLE WAS TAKEN TO HAMILTON CHEVROLET LOCATED AT (5800 E 14 MILE RD, WARREN, MI 48092) TO RECEIVE THE REMEDY FOR NHTSA CAMPAIGN NUMBER: 19V645000(SERVICE BRAKES, HYDRAULIC) HOWEVER, AFTER THE VEHICLE WAS REPAIRED THE CONTACT EXPERIENCED THE FAILURE. THE CONTACT STATED THAT THE VEHICLE REQUIRED AN EXTENDED BRAKING DISTANCE WHEN THE BRAKE PEDAL WAS DEPRESSED TO STOP THE VEHICLE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC, THE CONTACT WAS INFORMED THAT THE VACUUM PUMP NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 176,000.

TOOK VEHICLE TO DEALERSHIP AND THEY DID A RECALL ON THE BRAKES. I WAS DRIVING DOWN THE ROAD AND LOST ALL BREAKS ALMOST CAUSING A MAJOR ACCIDENT. BREAK LIGHT CAME ON. VEHICLE WAS IN MOTION AND WOULD NOT STOP, I HAD TO SLOW THE TRUCK WITH EMERGENCY BRAKE AND DOWNSHIFTING THE TRANSMISSION TO AVOID A COLLISION WITH A DUMP TRUCK.

I DECIDED TO TAKE A DAY TRIP UP TO LAKE TAHOE- FROM FOLSOM CALIFORNIA. IT'S ABOUT 88 MILES AWAY. WE MADE IT TO THE TOP OF THE SUMMIT AND ON THE WAY DOWN MY BRAKES STOPPED WORKING. IT WAS AS HARD AS ROCK. I COULDN'T PUSH DOWN ON THE BRAKE PEDAL AT ALL!! IT WAS SO SCARY. AS THE PEOPLE IN FRONT OF ME WOULD BRAKE I HAD TO USE MY PARKING BRAKE TO SLOW IS DOWN. MY ONLY OPTION WAS TO CRASH INTO THE PERSON IN FRONT OF ME TO STOP US OR USE THE GUARD RAIL AND POSSIBLY GO OVER THE SIDE OF A CLIFF!! MY CAR WAS LOADED WITH 5 CHILDREN AND 2 ADULTS. WE WERE ALL TERRIFIED. I HAD NO INDICATION AS THE DRIVER THAT ANYTHING WAS WRONG WITH MY BRAKES UNTIL THAT MOMENT. THERE WEREN'T ANY LIGHTS OR WARNINGS THAT SOMETHING WASN'T WORKING PROPERLY. MY HOPES IS TO REPORT THIS AND NOT LET IT HAPPEN TO ANYONE ELSE.

ATTEMPTING TO BACK DOWN A HILL A SLOW SPEED LOST ALL BRAKES SLID OF HILL ROLLED 4 TIMES. CONCUSSION, LOSS OF EYESIGHT IN RIGHT EYE.

I WAS IN A LINE FOR THE CAR WASH AND MY BRAKE PEDAL GOT HARD AND I HAD TO APPLY A LOT OF PRESSURE IN ORDER TO GET THE CAR TO STOP. I WAS ABLE TO GET OUT OF LINE AND GOT BACK ON THE ROAD AND THE CAR WAS BREAKING FINE BUT AS SOON AS I GOT IN TRAFFIC AND WAS AT A SLOWER SPEED THE PEDAL WOULD VIBRATE AND AGAIN THE PEDAL GOT HARD AND WAS DIFFICULT TO STOP. I MADE IT BACK TO MY WORK WHICH HAS A HILL PULLING IN, GOING DOWN THE HILL AS I PRESSED THE BRAKE PEDAL IT GOT HARD AND DID THE VIBRATING THING AGAIN. I HAD MY 2015 CHEVY TAHOE TOWED TO A DEALER WHERE IM CURRENTLY AWAITING A DIAGNOSTIC.

WHEN REVERSING MY BRAKES STALL TO WORK. MY TRUCK WILL IT STOP AND HAVE A ALMOST CRASHED. MOVING FORWARD THRU A DRIVE THRU THE TRUCK DOESN'T STOP EITHER.*DT CONSUMER STATED WHEN REVERSING, BRAKES STALL TO WORK AND CONSUMER ALMOST GOT IN A CAR ACCIDENT. CONSUMER FELT VEHICLE STARTED FAILING WHEN THEY TOOK IT IN FOR A RECALL ON THE ANTILOCK BRAKES. VEHICLE NO LONGER UNDER WARRANTY, VEHICLE CANNOT BE CHECKED WITHOUT PAYING UPFRONT. IN MOVING UP SLOWLY THROUGH THE DRIVE THRU BEHIND CARS, THE BRAKES SEEM TO FAIL WHEN CONSUMER STEPS ON THE BRAKES AND ALMOST HITS THE CARS IN THE REAR BUMPER.*JB

TL* THE CONTACT OWNS A 2015 CHEVROLET TAHOE. THE CONTACT STATED THAT WHILE HIS WIFE WAS DRIVING AT AN UNKNOWN SPEED, THE BRAKE PEDAL WAS DEPRESSED WHICH FAILED TO ENGAGE PROPERLY WITHOUT WARNING. THE DRIVER CRASHED INTO THE VEHICLE IN FRONT. NO AIR BAGS DEPLOYED. NO INJURIES WERE SUSTAINED IN THE CONTACT'S VEHICLE HOWEVER, INJURIES OF THE OTHER VEHICLE OCCUPANTS WERE UNKNOWN. A POLICE REPORT WAS MADE. THE CONTACT STATED THAT THE VEHICLE WAS TOWED TO A COLLISION CENTER FOR PHYSICAL REPAIRS AND WAS NOTIFIED THAT THE BRAKES WERE FAILING WHEN DEPRESSED. THE VEHICLE WAS NOT TAKEN TO A LOCAL DEALER FOR DIAGNOSIS OR REPAIRS. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND INFORMED THE CONTACT THAT NO RECALL WAS UNDER THE VIN. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V645000 (SERVICE BRAKES, HYDRAULIC), THE VEHICLE WAS TAKEN TO THE DEALER FOR SERVICE HOWEVER A FAILURE OCCURRED. THE FAILURE MILEAGE WAS APPROXIMATELY 41,030.

I HAVE A 2015 TAHOE THAT LOOSES BREAK PRESSURE AT IDLE RPM IN DRIVE, ONCE YOU RAISE THE RPMS THE BRAKE PRESSURE WILL COME BACK. WE HAVE ALMOST HIT MULTIPLE VEHICLES WHEN TRYING TO STOP IN A PARKING SPOT OR IN LINE AT DRIVE THRU'S. THE PROBLEM IS THE BRAKE VACUUM PUMP IS FAILING AND I WILL BE PURCHASING A NEW ONE AND REPLACING IT, I HAVE BEEN QUOTED UPWARDS OF $1000 FOR PARTS AND LABOR FOR THIS FAULTY PART. *TR

UNABLE TO BRAKE. WHILE ATTEMPTING TO SLOW DOWN MY BRAKES ARE MAKING MY VEHICLE UNABLE TO STOP PROPERLY. TOOK MY TAHOE TO CHEVY DEALERSHIP AND THEY WERE ABLE TO FIX IS. THIS ISSUE HAS BEEN GOING ON SINCE THEN END OF LAST YEAR. SO I?VE BEEN VERY LIMITED TO BEING ABLE TO DRIVE. ON APRIL 9TH I WENT TO DO A CURBSIDE GROCERY PICK UP WITH MY 1 YEAR OLD AND 3 YEAR OLD WHILE LEAVING THE GROCERY STORE MY BRAKES WENT OUT. I WAS ABLE TO PUMP MY PEDALS TURNED HARD MAKING IT U ABLE TO BRAKE I FORCED MY LEG TO PUSH DOWN ENOUGH TO PUT IT ON PARK AND TURN MY TAHOE OFF. I WAITED 10 MIN TO ATTEMPT TO LEAVE TO THE GROCERY STORE AND IT HAPPENED AGAIN. I CALLED MY HUSBAND FOR HELP HE ARRIVED CHANGED OUT THE CAR SEATS AND ATTEMPTED TO DRIVE HIM SLOW. AS WE WERE ARRIVING BACK HOME THE BRAKES WENT OUT AGAIN INSIDE THE GARAGE AT OUR HOME. TAHOE IS AT THE DEALERSHIP GETTING THE BRAKES FIX SO I HOPE EVERYTHING IS BACK TO NORMAL AFTER IT BEING FIX. *TR

IN A DRIVE THRU, PRESSED BRAKE DOWN AND THE PEDAL WAS ROCK HARD. THE TAHOE DIDN'T STOP FOR AN EXTRA 3', WHICH ALMOST CAUSED ME TO RUN INTO A CHIK FIL A WORKER! HE WALKED TO MY WINDOW MAD, AND I TOLD HIM THE BRAKES AREN'T WORKING AND TO MOVE THE CONES SO I COULD GET OUT OF THE DRIVE THRU. HE DID. I PUMPED THE BRAKE PEDDLE AND THEY WORKED ENOUGH FOR ME TO LIMP IT TO A MECHANIC RIGHT NEAR THERE. HE DIAGNOSED A VACUUM PUMP AND CHARGED MY EMPLOYER, LBB ASSOCIATES INC IN COLUMBIA MD $524 TO REPAIR

WHEN APPLIED TE BRAKE PEDAL SOME TIME FEELS HARD AND THE PEDAL GOES TO THE FLOOR ( THAT IS IN LOW RPM WHEN I'M GOING TO PARK THE VEHICLE) ALSO WHEN I'M GOING TO PARKING IN REVERSE FEELS MORE NOISE AND WON'T STOP TOTALLY EVEN WITH THE BRAKE PEDAL ALL THE WAY TO THE FLOOR. THANK YOU.