2017 GMC YUKON XL Service Brakes Problems

I am filing a complaint regarding a serious safety issue with my 2017 GMC Yukon XL related to the brake vacuum pump. According to recall information (NHTSA Recall ID: N192268490), certain 2015-2017 GMC Yukon and Yukon XL vehicles are equipped with a defective vacuum pump that may decrease in output over time. This defect reduces power brake assist, resulting in increased braking effort, a hard brake pedal, and extended stopping distances. These conditions significantly increase the risk of a crash. I have experienced symptoms consistent with this issue, including vibrating brake pedal with no slippage, a hard pedal, ticking noises from the engine, a 'Service Brake Assist' warning message, and difficulty braking. This issues usually occur under 10 mph. These problems compromise the vehicle’s braking performance and pose a direct threat to the safety of myself, my passengers, and other road users.

Transmission Failed at 100,000 miles stalling vehicle brakes pushing back on me.

Passenger brake light assembly issues

When backing down a boat ramp for a day on the lake I experienced extremely high rake pedel effort and abs engaging with no wheel slip for skid. In order to keep the vehicle from going into the lake I had to apply the parking brake. No warning lamps illuminated. The dealer states it is a faulty vacuum pump.

SERVICE TRAILER BRAKE SYSTEM

Brake peddle get hard while reversing at low speeds

Brake Assist went out. I have to use 2 feet to even stop.

My brake lights work intermittently. If you tap the actual brake light they will flicker on and off. This puts others and my self at risk as the indicator for by braking system is not functioning properly. My vehicle has been to my local GMC dealer with a replacement cost of $950.00. I also received a written warning from my local police department. There are no warning notices.

The rear break lights malfunctioned and will quite working periodically there has been no inspection from a dealership at this moment and driving at night time puts me and my family at risk due to the fact that I could be rear ended and cause a major accident and my vehicle has no warning light or service light for this problem.

The brake lights fail. First the left light failed, and two days later the right light failed. After researching, this is a common problem with GM and these models. The fix is not just a bulb- the whole rear light assemblies (each side) needs replacing with GM price quotes of $900 a side. We were over 1000 miles away from home.

PASSENGER SIDE REAR LED BRAKE LIGHT HAS STOPPED WORKING. IT DOES NOT LIGHT UP.THIS IS A PROBLEM THAT HAS OCCURRED IN THE 2015 AND 2016 YUKONS. I WAS INFORMED BY A FELLOW MOTORIST THAT MY BRAKE LIGHT WAS OUT. THE REPAIR IS ESTIMATED AT $850.00 AS THE WHOLE REAR LIGHT UNIT MUST BE REPLACED.

Mileage: 45,000

BRAKE LIGHTS WORK INTERMITTENTLY. VERY DANGEROUS! PASSENGER SIDE BRAKE LIGHT, STOPPED WORKING COMPLETELY, THEN CAME BACK ON.

Mileage: 80,000

MY 2017 YUKON IS EXHIBITING THE EXACT SAME BRAKE BEHAVIOR AS THE BELOW COMPLAINT, BUT MY VEHICLE IS NOT ELIGIBLE FOR THE RECALL FOR SOME REASON. NHTSA CAMPAIGN NUMBER: 20V603. GM'S OWN NUMBER FOR THIS RECALL IS N202300860.

Mileage: 70,000

TL* THE CONTACT OWNS A 2017 GMC YUKON XL. THE CONTACT STATED THAT WHEN ATTEMPTING TO PARK, IN ORDER TO HAVE THE VEHICLE COME TO A COMPLETE STOP THE BRAKE PEDAL HAD TO BE DEPRESSED ALL THE WAY TO THE FLOORBOARD. THE CONTACT STATED THAT THE SAME FAILURE HAD OCCURRED TWICE AFTER THE ORIGINAL FAILURE. ON ONE OCCASION, THE SERVICE BRAKE ASSIST WARNING MESSAGE APPEARED ON HER INSTRUMENT PANEL. LAFONTAINE BUICK GMC OF ANN ARBOR (500 AUTO MALL DR, ANN ARBOR, MI 48103) WAS NOTIFIED OF THE FAILURE AND THE CONTACT WAS INFORMED THAT THERE WERE NO RECALLS. THE CONTACT THEN TOOK THE VEHICLE TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THE VEHICLE WITH A FAULTY BRAKE ASSIST THAT NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE CONTACT WAS MADE AWARE OF NHTSA CAMPAIGN NUMBER: 19V645000 (SERVICE BRAKES, HYDRAULIC) WHICH HE LINKED TO THE FAILURE. THE MANUFACTURER HAD YET TO BE NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 58,000.

Mileage: 58,000

I TOOK MY CAR TO GMC BECAUSE I LIVE ON A HILL AND WHEN I PARK MY CAR THEN PUT IT INTO DRIVE OR REVERSE THE BRAKES DON'T FUNCTION PROPERLY. THE BRAKES SLIDE AND SKIP AND THE VEHICLE HAS A VERY HARD TIME STOPPING. IT HAPPENS WHILE PUTTING THE CAR INTO PARK ON ANY HILL, THEN PUTTING IT BACK INTO GEAR. IT ALSO HAPPEN WHEN DRIVING A SLOW SPEED ON FLAT GROUND. GMC FOUND THE PROBLEM AND STATED IT'S UNDER A SPECIAL COVERAGE WARRANTY #N182202780-01. I'VE ALMOST HAD IT TOWED MULTIPLE TIMES BECAUSE I WAS AFRAID TO CONTINUE DRIVING, I'D HAVE TO GO EXTREMELY SLOW DOWN HILLS IN FEAR THE BRAKES WOULDN'T BE ABLE TO HOLD ME BACK IF I GAINED SPEED. GMC DOESN'T KNOW WHEN THE PART WILL BE IN AND STATES THEY WON'T PROVIDE A RENTAL CAR. I AM PREGNANT, SO IF I GET IN A CRASH GOING 5MPH, IT DOESN'T MATTER, I'LL STILL HAVE TO GET CHECKED BY A DOCTOR. I'M AN ESSENTIAL WORKER AND STILL NEEDING TO HAVE A DAILY VEHICLE. I DON'T UNDERSTAND HOW THERE IS A FOUND/KNOWN BRAKE PROBLEM AND THEY ARE TELLING ME IT'S SAFE TO DRIVE WHEN THERE WAS BEEN OVER 100 ACCIDENTS. THEY NEED TO PROVIDE A RENTAL CAR AND FIX IT.

Mileage: 70,000

THE LATEST ISSUE BEGAN WHEN DRIVING ON THE HIGHWAY, I NOTICED THAT THE BRAKE PEDAL WOULD BOUNCE WHEN TRYING TO SLOW DOWN AT HIGHWAY SPEEDS. I DIDN'T THINK MUCH OF IT. EXACTLY 2 DAYS LATER, WHILE APPROACHING TRAFFIC AT A RED LIGHT AT RELATIVELY LOW SPEEDS, THE VEHICLE WOULD NOT STOP. I TRIED TO PUSH THE PEDAL, THE PEDAL WOULD GO ALL THE WAY DOWN LIKE IT HAD NO PRESSURE. LUCKILY THERE WAS NOT ONCOMING TRAFFIC AND I WAS ABLE TO SWERVE ONTO THE LEFT LANE AND FINALLY INTO A PARKING LOT WHERE I WAS ABLE TO PARK USING THE EMERGENCY BRAKE. MY VEHICLE HAD RECENTLY BEEN SERVICED FOR THE VACUUM PUMP RECALL SINCE MY BRAKES WOULD BECOME HARD TO PUSH BUT ONLY WHEN MOVING AT VERY LOW SPEEDS LIKE IN HEAVY TRAFFIC OR IN A DRIVE THROUGH SERVICE. I AM CONCERNED ABOUT THE ISSUE SURFACING FOR A THIRD TIME WHEN I HAVE MY FAMILY IN THE VEHICLE.

Mileage: 20

BRAKE FAILURE AFTER RECALL WAS DONE BRAKES STILL FAIL WAS DRIVING AND WAS BRAKING THE PEDAL WENT IN ALL THE WAY AND THE YUKON XL DENALI DID NOT STOP ALSO HAVE BAD FUEL INJECTORS TOOK IT TO THE DEALERSHIP AND THEY DONT KNOW WHAT FUEL INJECTORS GO ON THE SUV ALSO GM DOESNT KNOW THEY HAVE TO TAKE APART THE ENGINE TO FIND OUT WHAT FUEL INJECTORS THEY PUT ON THE ENGINE THEY WONT GIVE ME A CAR RENTAL AND DOES NOT ALL THE FUEL INJECTORS ARE ON BACK ORDER THERE IS 3. TYPES HIGH PRESSURE LOW PRESSURE AND THEY DONT KNOW THE FUEL INJECTOR THAT WAS USED I PAID OVER 90,000 WITH TAXES AND INTEREST ON THIS 2017 YUKON XL DENALI AND THEY HAVE REPLACED 3 SHOCKS, BRAKE VACUUM PUMP, BRAKE AND ROTORS THEY HAD TO REPAINT THE FEONT BUMPER REAR BUMPER HOOD AND BACK DOOR AND NOW THE FUEL INJECTORS WITH ONLY 37,500 MILES THIS SUV IS A JUNK AND NOW I BELIEVE ALL GM CARS ARE NOW JUNK

MY BRAKES GET HARD WHEN DRIVING IN SLOW TRAFFIC. AND STERRING WHEEL GETS STIFF WHEN PRESSED DURING TURNING CORNERS OR TURNS

IT WAS A 101 DEGREE OUT HERE IN DENVER, COLORADO. WHILE DRIVING ON A TOLL WAY AT 75 MILES PER HOUR AN "ABS" LIGHT WITH A "SERVICE STABILITRAK" MESSAGE POPPED OUT. THE VEHICLE WAS DRIVING OK WITH LIGHTS ON UNTIL I FINISH THE TOLL WAY (30 MILES) AND THEN FOR THE NEXT 50 MILES ON A HIGHWAY. I NOTICED THE FIRST PROBLEM WHEN I EXITED THE HIGHWAY AND DRIVING AT A LOWER RPM. AT 30-45 MILES PER HOUR THE VEHICLE STARTED SETTING THE BREAK ON BY ITSELF AND DRAFTED TO THE LEFT LANE. THEN I HAD TO STEER QUICKLY TO THE RIGHTSCOUPLE TIMES UNTIL I REACH TO MY DESTINATION. I ALSO NOTICED THAT WHEN I STEER HARDER EITHER TO THE LEFT OR RIGHT AT A LOW RPM, THE VEHICLE STOPES ROLLING BY ITSELF BEFORE I PUSH ON THE BREAK.

Mileage: 99,000

THE WHOLE BACK TAIL LIGHT HAD TO BE REPLACED AFTER FAILING. POOR DESIGN AND A COMMON PROBLEM ON THE 2015-2017 GMC YUKONS. THERE IS A COMMON AREA THAT BREAKS. NOT ONLY A BIG EXPENSE BUT ALSO A LARGE WASTE OF MATERIAL CONSIDERING THE WHOLE UNIT HAS TO BE REPLACED. COST IS OVER $800.00 AND THE DEALER BUYS BACK THE OLD LIGHT FOR $50 SEEMS A BIT SUSPICIOUS BY GMC. THESE LAMPS ARE A SEALED UNIT AND WERE NEVER DESIGNED TO BE REPAIRED. AS DESIGNED, IF THERE IS A PROBLEM, THE LAMP IS REPLACED AS A COMPLETE AND VERY EXPENSIVE UNIT. MORE CAN BE FOUND HERE: HTTPS://WWW.CARCOMPLAINTS.COM/GMC/YUKON/2015/LIGHTS/TAILLIGHT_NOT_WORKING_PROPERLY.SHTML

THIS VEHICLE BREAKS FAILED ON ME WHILE DRIVING A VERY KNOWN ISSUE ON PREVIOUS YEAR

Mileage: 49,200

THIS IS ABOUT A 2017 YUKON XL BREAK FAILING TO OPERATE THE PREVIOUS 2016 YUKON MODELS HAVE THE SAME ISSUE AND HAVE A RECALL BULLETIN NO: PIT5361B AND THE DEALER DOES NOT WANT TO ADDRESS OR ACKNOWLEDGE THE PROBLEM

Mileage: 49,200