2016 GMC Yukon Brakes Problems

On two occasions while driving at low speed, my vehicle braked on its on a pulled hard to the left; the stabilitrac indicator also popped on briefly. I went online to determine if there were any recalls on my vehicle and found that one of the recalls on the 2016 Yukon was the exact issue happening with my vehicle. I checked my VIN and found that my vehicle was not one of the vehicles with this issue. I called GM to see if my vehicle had just not been published yet. I explain the situation too the customer service person; she understood my situation and informed me that until my specific VIN in identified with this issue, there's nothing that can be done. I'm thinking that until an accident happen because of this issue, there is nothing that can be done. I read that my issue was a problem with the EBCM, which needs to be reprogrammed. I thank you for any assistance with this issue.

There's alot of time while I'm driving in line going slowly and break pedal become hard and it will seem like the truck it's not stopping.

My brakes are not working properly. I can be backing up and put my foot on the brake. My truck will keep moving until I apply a lot of pressure on the brake pedal. I can be backing up and my truck will automatically brake and stop moving. I have to cut the truck off, start it back up for it to move. I was in a stand still traffic jam and braking a lot and my truck did stop it keep rolling. Sometimes when I apply the brake it slides.. This is the third time I have put it in the shop. I changed the brakes, brake sensor and replaced tires. I am scared to drive it. My truck is currently in the shop now for the brakes. please help.

When driving through Eugene brakes suddenly got soft while at a stoplight, then pedal got stiff and very hard to keep pressed. An alert came on the dashboard 'Brake Assist Service' just about the same time the brake pedal changed and car would not fully stay at a stop. When checking to feel what had just happened, by letting up and repressing the brakes, it would not fully stop car, even with all my strength pressing. If another car would have been coming through, my young son or myself could have been killed or seriously injured and I could cause someone seriously to be hurt or killed from being in their lane of travel. I alerted my husband that I was unable to drive the vehicle safely, he is in the vehicle industry and looked up online and found there is a common known problem, recalls, and service bulletins, but apparently not for vehicle years prior to 2017, although this severe failure is seen on 2014 and later; and the manual tests/diagnostics that a person can do in a pinch per the bulletin, recall notice, and articles; and in his trials of how to tell if it is a failure or fleeting problem - nothing alleviated it, all the symptoms are present and system is failing and continually bringing up the brake assist service alert. This is the info that we found on the recall, but didn't appear to cover 2016 year models: [NHTSA campaign number: 20V603. GM's own number for this recall is N202300860.] We plan to get this yukon over to Guaranty Chevrolet in Junction City Oregon tomorrow 10/8. The only thing that has been very recently noticeable preceding this in recent week or so is a slight uneven braking feeling in the motion of the car when coming to a stop. Which it has not done before.

GMC is stating that due to a recall my brake booster vacuum pump failed and now they are that is is not covered and I will be out of pocket on the issue after numerous phone called with GM they are still of no help and the vehicle is not safe to drive which is my only means of transportation

My 2016 GMC Yukon is hard to stop when pressing brake pedal. Vehicle shimmy’s when pressing the brake and it must be pressed very hard. Have read and watched many videos this is very common issue on 2014-2018 Yukons and Tahoes. This could be very dangerous and my question is, why has these vehicles not been recalled to prevent accidents when it seems to be a common issue and expensive to fix?

“Service Trailer brake system” warning continually going off when driving

During standard braking operations the vehicle (not a hard emergency situation) on dry ground the vehicle seems to activate the abs system or something similar which makes the braking effort non standard and increases stopping distance. The issue has occurred occasionally for over a year but is becoming more frequent. It has occurred at both highway speeds of 55 mph and almost stopped during parking activities of 2mph.

Brakes will randomly stop working. When the brakes are pressed you have to press all the way down and then vehicle still won’t stop and the only way for the vehicle to come to a complete stop is to press the parking brake. Brakes and rotors have been replaced already and it still happens

Vacuum

2016 GMC Yukon. I received a letter that stated my Yukon may have a condition where the brake lights intermittently do not illuminate. In March 2020 the drivers side rear brake light did not illuminate. I brought it to a Chev/GMC dealer that replaced the tail light no charge. Now my passenger rear tail brake light does not illuminate. My Yukon has 68800 miles on it and it is going on 6 years old. I still have my letter I received about this issue. Without my tail/brake light it is unsafe to drive my vehicle until I get that brake unit replaced. Will I still be able to my passenger side brake unit replaced at no charge? I haven’t been able to get it replaced due to I had total knee replacement surgery in February 2022

The trailer break service light is coming on. There is not a way to dismiss the sound and comes on every few seconds, it's very distracting a HUGE safety risk. I have contacted GMC Valencia California and they have have several vehicles with the same issue / hazard. This has apparently been going on for years yet GMC refuses to put a recall on the vehicles nor take action on correcting this on this critical issue. This is very upsetting and with all the complaints / concerns it appears nobody cares for the lives this defective issue could cause, especially when towing. Thank you.

Vacuum pump loses vacuum, and the brakes are very hard. Occurs when sitting still with the brake applied. Also occurs in reverse at low speeds. My wife refuses to drive her car, due to numerous near fender benders.

ON TWO OCCASIONS WHILE IN A DRIVE THRU LINE, I WOULD PRESS THE BRAKES AND THE BRAKE PEDAL WOULD GO TO THE FLOOR. I HAD TO BASICALLY STAND UP ON THE BRAKE PEDAL TO GET THE VEHICLE TO STOP. I HAVE NOT HAD THIS HAPPEN OTHER THAN AT A LOW RATE OF SPEED. I SEARCHED GMC YUKON FOR ANY RECALLS AND FOUND THAT THIS IS A RECALL WITH GMC. WHEN YOU DO A SEARCH OF MY VEHICLE BY VIN, IT STATES NO RECALLS ARE FOUND. I CONTACTED A LOCAL GMC DEALER AND WAS TOLD THAT THEY CAN'T DO ANYTHING UNLESS MY VIN SHOWS THE ACTIVE RECALL.

The contact owns a 2016 GMC Yukon. The contact stated that while driving at approximately 70 mph, the brake pedal was hard to depress and the brake pedal traveled to the floorboard. The contact mentioned that the brake pedal needed to be pumped in order for the vehicle to be operated. In addition, the contact stated the vehicle failed to stop immediately. The vehicle was taken to a dealer where it was diagnosed that the brake line needed to be flushed. The vehicle was repaired however, the failure persisted. The vehicle was taken to an independent mechanic where the failure was undetermined. The contact mentioned while the mechanic was reversing the vehicle the brakes failed to operate causing the vehicle to crash into a person and a vehicle. The contact stated that the lady sustained multiple injuries that needed medical attention. A police report was filed. The vehicle was towed to the dealer where it was diagnosed that the brake vacuum pump needed to be replaced. The vehicle was repaired but the failure recurred. The vehicle was taken back to the same dealer where they informed the contact that the failure was unable to be duplicated. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage 54,000.

TL* THE CONTACT OWNS A 2016 GMC YUKON. WHILE REVERSING OUT OF A PARKING LOT AT APPROXIMATELY 3 MPH, THE CONTACT FELT A VIBRATION COMING FROM THE VEHICLE. WHEN THE BRAKE PEDAL WAS DEPRESSED, IT TRAVELED TO THE FLOORBOARD WITHOUT WARNING. THE CONTACT MANAGED TO STOP THE VEHICLE WHILE THE BRAKE PEDAL WAS DEPRESSED. THE EMERGENCY BRAKE WAS NOT APPLIED. AAA WAS CONTACTED AND TOWED THE VEHICLE BACK TO THE CONTACT'S RESIDENCE. THE CONTACT STATED THAT THE FAILURE OCCURRED APPROXIMATELY THREE WEEKS AFTER OURISMAN CHEVROLET BUICK GMC OF ALEXANDRIA (1800 OLD RICHMOND HWY, ALEXANDRIA, VA 22303) UPDATED THE SERVICE BRAKES PER NHTSA CAMPAIGN NUMBER: 19V645000 (SERVICE BRAKES, HYDRAULIC). THE DEALER AND MANUFACTURER WERE NOT MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 48,200.

TL* THE CONTACT OWNS A 2016 GMC YUKON. THE CONTACT RECEIVED A RECALL NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V645000 (SERVICE BRAKES, HYDRAULIC). THE CONTACT STATED THAT THE REMEDY SHOULD INCLUDE REPLACING THE ENGINE VACUUM PUMP INSTEAD OF REPROGRAMMING THE ELECTRONIC BRAKE CONTROL MODULE. A DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS NOTIFIED OF THE CONTACT'S CONCERNS. THE CONTACT HAD NOT EXPERIENCED A FAILURE.

TL* THE CONTACT OWNS A 2016 GMC YUKON. WHILE ACCELERATING FROM A STOP, THE VEHICLE JERKED AND ACCELERATED INDEPENDENTLY WITHOUT WARNING. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE VACUUM PUMP FAILED AND NEEDED TO BE REPLACED. THE CONTACT WAS INFORMED TO TAKE THE VEHICLE TO A GMC DEALER. THE VEHICLE WAS LATER TAKEN TO JIM TAYLOR CHEVROLET (139 GRIMSHAW ST, RAYVILLE, LA 71269, (318) 303-6475) WHERE A DRIVING TEST WAS PERFORMED; HOWEVER, THE TECHNICIAN COULD NOT REPLICATE THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE CONTACT STATED THAT THE FAILURE RECURRED SEVERAL TIMES. THE VIN WAS INCLUDED IN NHTSA CAMPAIGN NUMBER: 19V645000 (SERVICE BRAKES, HYDRAULIC). THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 45,000.

VACUUM PUMP. ENGINE LIGHT ON. BRAKE LIGHT ON. DROVE HORRIBLE & COULD HARDLY STOP AT TIMES. CITY STREET

WHILE IN SLOW TRAFFIC, I PRESSED BRAKES TO STOP. THE BRAKE PEDDLE DID NOT COMPRESS DOWN, CAUSING ME TO HAVE TO ENTER THE HIGHWAY MEDIAN TO KEEP FROM STRIKING THE VEHICLE IN FRONT OF ME. THE MEDIAN WAS WET AND MUDDY. OUR YUKON HAD TO BE PULLED FROM THE MEDIAN BY A GOOD SAMARITAN.