There are 28 owner-reported brakes complaints for the 2017 GMC Yukonin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
At parking lot speeds, there have been many incedents of brake failure, when pressing pedal to stop pedal pulsates and becomes very hard to stop the yukon. there seems to be a vacume or booster issue. Yukon will be fine for days then reaccure when slowing at stop sign or waitng at red light and moving foward in slow traffic to sign or llight and then in happens again. scary and unreliable when using brakes at low speed intersections or continous stop and go's
At low idle speeds like in a parking lot we almost hit another car because the brakes were very hard to press. No power brakes. Felt as I was having to stand on the brake pedal with both feet to stop my vehicle from hitting another car at a grocery store parking lot going 5 mph! A light flashes on and says”service brake assist “ light goes away and drives normal and brakes normal except when you get to a stop sign, or traffic light. This happens a few times and I’m not driving the car because of it because I might hit someone
Yukon break tail lamp problems. Brake lights work intermittently. Very dangerous! The break lights will work intermittently and then work. This was an issue with the 2016 models and GM issues a recall. There is no recall for 2017 which I don't understand because nothing has changed with the manufacturing process. I researched and there is a class action but in California only.
Brake pedal gets hard and will not allow vehicle to stop. Intermittent issue, but caused vehicle to hit gate. Same situation occurred later that same week and vehicle almost rolled through major highway crossing.
The pump in the power-assist brakes puts out less vacuum power than needed, increasing stopping distance and the risk of a crash. My car rolls and doesn't stop. I have new brakes so this is unacceptable!!
This has been going on for a while now, but it’s getting worse overtime. If I push on my brakes more than twice the brake pedal locks up and I have to push extremely hard to get my vehicle stopped.. luckily I have never been going fast and had to worry about this. This is normally when I am pulling into a parking spot or I am backing up that I have to tap on my brakes a few times. A couple of times I have bumped the pole in front of my parking spot due to not having brakes. I just put in a general date as to when they started to get worse.
I have a 2017 Yukon. There is a recall on this model already for a vacuum pump that decreases the power brake assist. My vehicle is having this exact issue. The back tire sounds like the compressor is always running and when braking it grinds at the pedal like a vibration and doesn’t want to stop immediately. I need my vehicle added to the recall list so I can get it repaired.
The contact owns a 2017 GMC Yukon. The contact stated that while driving at approximately 45 MPH, the brake pedal was depressed; however, the brake pedal remained on the floorboard. The contact stated that the vehicle was driven until the vehicle eventually slowed down. The vehicle was taken to an independent mechanic where it was diagnosed and determined that the rotors and brake pads needed to be replaced. The vehicle was repaired but the failure persisted. The vehicle was towed to an independent mechanic, and it was determined that the ABS needed to be replaced. The vehicle was repaired but the failure persisted. The manufacturer was notified of the failure. The failure mileage was 85,000.
Driving down the highway and brake pedal became hard to push down almost causing us to wreck. Keep seeing there was a recall for the brake vacuum pump and also brake assist warning came on. Also when driving low speed like in parking lot it takes a while for vehicle to come to a complete stop
AFTER A 7 HOUR DRIVE ON FREEWAY BRAKES FAILED TO STOP VEHICLE. I HAD TO HAVE IT TOWED TO REPAIR SHOP FOR A COMPLETE BRAKE JOB FOR $1800.00. VEHICLE SEEMED TO BE FIXED SO DROVE IT BACK HOME ANOTHER 7 HOURS AND THE EXACT SOME PROBLEM HAPPENED AGAIN WHILE PARKING IN MY GARAGE.
The contact owns a 2017 GMC Yukon. The contact stated while driving from a complete stop, the vehicle hesitated to respond while shifting from first to second gear. Additionally, the contact stated that while driving at various speeds and depressing the brake pedal, the brake pedal would hesitate to respond, causing a 40-50 feet stopping distance delay. There was no warning light illuminated. The contact stated that the failure recurred while driving. The vehicle was taken to an unknown dealer who advised the contact to take the vehicle back to the Honda dealer where the vehicle was purchased and sold for repair. The vehicle was taken to the Honda dealer. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 120,564.
The contact owns a 2017 GMC Yukon. The contact stated while driving at 20 MPH with her daughter in the rear passenger seat, the message "Grade Braking Active" was displayed. The contact stated while making a right turn in an intersection, she depressed the brake pedal to prevent the vehicle from colliding with the vehicle before hers. However, the brake pedal went down to the floorboard and failed to respond. The contact then quickly veered to the right to prevent a crash. The vehicle hit a curb and was propelled to the left across three lanes and crashed into the rear of another vehicle. The air bags did not deploy. The contact sustained bruises on the forehead as she hit her head against the steering wheel. The contact also sustained soreness on the neck and shoulder; however, the contact did not seek medical assistance. The contact's daughter did not sustain any injuries. The occupant of the other vehicle did not sustain injuries. A police report was filed. The contact's uncle met her at the scene and drove the vehicle back to her residence. The dealer was not notified of the failure. The manufacturer was notified of the failure and informed the contact that they would send a field technician to diagnose the vehicle. The contact associated the failure with NHTSA Campaign Numbers: 19V645000 (Service Brakes, Hydraulic) and 20V603000 (Service Brakes, Hydraulic); however, the VIN was not included. The vehicle was not diagnosed or repaired. The contact's vehicle remained at her residence. The failure mileage was approximately 95,000.
Low speed breaking failure.
-Back brake light system failure. -Safety of a rearend accident compromised when tail light does not work properly. -Yes, a repair shop confirmed the $975 unit needs to be replaced and is on back order for one month putting our safety at risk. -No warning has appeared. A person behind me reported it to me.
THE BRAKES STOP WORKING. BRAKE ASSIST COMES ON. WHEN I PRESS THE BRAKES YOU CAN FEEL THE PUMP IS NOT WORKING AT ALL. THIS IS HAPPENING AT SLOW SPEEDS MOSTLY IN PARKING LOTS BUT IN FEAR OF IT HAPPENING WHEN GOING FASTER. THIS NEEDS TO BE FIXED ASAP- DANGEROUS TO DRIVE MY CHILDREN AROUND IN A CAR WHERE THE BRAKES JUST STOP WORKING.
IRREGULARITIES WHEN BRAKE IS PUSHED AT LOW SPEEDS. CAN FEEL VARIOUS ISSUES SUCH AS VIBRATING BRAKE PEDAL, STUTTERING NOISE, LOSS IN PRESSURE OF BRAKES AND NEEDING EXCESSIVE PRESSURE ON BRAKES TO STOP VEHICLE. THIS HAS HAPPENED 2-3 TIMES NOW, ONCE IN A PARKING LOT, IN A DRIVE THRU AND WHEN PULLING OUT/IN THE GARAGE.
DRIVER SIDE REAR TAIL/BRAKE LIGHT GOES OUT WHEN OPEN AND CLOSE REAR HATCH. PASSENGER SIDE REAR HAS SAME ISSUE WHICH WAS RECALLED AND REPAIRED. TAP THE REAR QUARTER PANEL OR HIT A BUMP TAIL LIGHT WILL TURN OFF OR ON.
WHILE PULLING INTO A PARKING SPACE, THE BRAKES SHUTTERED AND THEY WOULDN'T HARDLY WORK. ALMOST COULDN'T GET THE VEHICLE STOPPED. A WARNING ON MY DASH SAID "SERVICE BRAKE ASSIST." THERE WAS A RECALL ISSUED IN CANADA BUT NON HERE FOR MY VEHICLE SO FAR. THIS IS A DANGEROUS SAFETY HAZARD THAT NEEDS TO BE FIXED. GMC NEEDS TO ESTABLISH A RECALL AS SOON AS POSSIBLE.
AFTER SENDING MY SUV FOR THE BRAKE RECALL(THE BRAKES ACTUALLY FAILED WHILE I WAS DRIVING) LAST MONTH, MY BRAKES FAILED AGAIN WHILE DRIVING OUT OF MY DRIVEWAY, ON WEDNESDAY 8/19 -ON MY WAY TO WORK.. I DROVE STRAIGHT TO THE DEALERSHIP. BASICALLY HAVING TO HARD PUSH THE BRAKES ON CITY STREETS STOP LIGHTS ETC. SCARY. YESTERDAY, 8/20 THEY TOLD ME THE CAR WAS FIXED. ON MY WAY TO THE DEALERSHIP 30 MIN AWAY, THEY TELL ME AFTER DRIVING THE VEHICLE, THAT BRAKE INDICATION CAME ON THE SCREEN AND THEY WILL NEED TO KEEP IT FOR MY SAFETY. AS OF NOW NO WORD ON IT BEING CORRECTED, AND QUITE HONESTLY NOT FEELING SAFE ABOUT DIVING THE CAR.
WAS IN SCHOOL CAR LINE, WENT TO MOVE FORWARD A LITTLE AND BRAKES DIDNT WORK PROPERLY. ALMOST HIT THE CAR IN FRONT OF ME. GO STRAIGHT TO A DEALERSHIP WHERE THEY TELL ME ABOUT THE RECALL. SCHEDULE THE FIX, THIS MORNING WHEN I LEFT THE DEALERSHIP I DISCOVER THE RECALL DIDNT FIX MY ISSUE. LEARN THAT I NEED A VACCUUM PUMP REPLACEMENT. I AM UPSET THAT I AM SUPPOSE TO PAY $500 FOR A FAULTY VACCUUM PUMP AND RISK MY LIFE, THE KIDS LIVES AND PEOPLE'S LIVE AROUND ME UNTIL I CAN AFFORD THIS REPAIR WHEN IT IS FAULTY IN THE FIRST PLACE.
Showing 1–20 of 28 complaints
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026