There is and had been a known defect with 2015, 2016 and 2017 gmc yukon and denali rear tail lights shorting out. Gmc has not issued a recall, however, many have complained. The LED tail light circuit board is cracks which causes a shirt that causes the lights to not work. If you search the internet, it is very clear this is a huge issue with yukon owners. Yet, gmc will not issue a recall. New tail light cost $1,000. This is clearly a manufacturing defect. If you could please look into this, we would all be grateful. I am concerned my young family will be seriously injured if the lights stop working and they are hit in the rear.
2015 GMC Yukon brakes complaints
Page 3 of 4: complaints 41 to 70 of 90, newest first, as owners wrote them.
Rear brake light assembly failing to light when brakes applied and there is not a notification to the driver. This is a manufacture flaw with the LED light circuit inside the assembly. There is not a light out notification so the driver is not aware the brake light has failed. This is a safety issue and is an well known issue on the 2015-2019 yukon. This is occurring often and gmc is having problems with supplying replacements because the demand is so high from the failure. Gmc has also raised the price of the brake light by 30% from $425 to $675 not including labor. I called the dealer and they informed it was a high failing item and was on backorder and not sure when they would get one. Driving the vehicle without proper brake lights is a safety concern and not legal so left with little option but to stop driving the yukon.
Rear brake and tail lights do not work intermittently. Sometimes the lights work and sometimes they don't.
While sitting still at a drive through, brake pedal went to floor as if it had no pressure. Had no brakes! No matter how hard I stood on pedal the car would not come to complete stop when rolling. Blew through stop signs and lights because even at 10 MPH could not stop vehicle from rolling. Had just got off interstate doing 70 MPH. Down hill grade was impossible. Found out that this was a known issue by gm involving failure of vacuum pump booster. Many reports, hopefully not many deaths caused.
Both brake lights work intermittently. If you tap hard on it they sometimes come back on but don't stay on. I took to gmc dealer where they informed me they've had a dozen yukon's in recently with the same issue. Dealer indicated issue is faulty circuit board that overheats causing the lights to short out. I'm out of manufacturers warranty. Extended warranty does not cover lights. Dealer charges $800 per light (part only).
Brakes don't work well when traveling at low rates of speed. Stopping requires brakes to be pressed to the ground and still may not stop. I have almost had several accidents even after having the issue 'repaired' last year. I've had the problem assessed at 3 different mechanics. I have had to throw my car into park to avoid hitting cars in front of me. Brakes fail while driving in places such as traffic jams, drive thru, school pick up, etc. This is a huge safety hazard and fear that my children may be hurt if this issue is not corrected by the manufacturer. Steering becomes nearly impossible when the brake issues occur. This is an ongoing problem for the last 1.5- 2 years. Also, the tail lights continue to go out even after paying hundreds of dollars for replacements.
Very hard/ stiff brake-pedal. It's very hard to stop the vehicle at any speed. I already replaced the brake pads and the problem still continues, is a very dangerous hazards to the drive the vehicle in that condition. The hard /stiff pedestal is in the city and the highway.
Brake light failure. First on driver's side then months later on passenger side. Vehicle was in motion. Hundreds of complaints are posted on the internet yet gm will not recall.
Tail/brake lights failed causing a safety concern. Took vehicle in to gmc dealer for repair. Left tail light (actually the entire printed circuit board) was replaced, right is on back order. Vehicle out of factory warranty and even though we had an extended bumper to bumper warranty, the work was not covered. This is a frequent issue, I have discovered on line, according to many owners of gmc suvs and trucks between the 2015 and 2018 models. Cost of repair including both tail lights is 1617.05. Gmc supported me by covering 600.00 of the cost so I paid 1017.05 out of pocket for 2 tail lights that should not have failed. I have only 24554 miles on the vehicle and have never had an accident. Additional to that, the 2 front seat belts are fraying which may lead to weakness eventually causing a safety issue. I want gmc to cover all costs related to repair of these two problems. There should be a recall regarding both. Seat belt problem has been on going for months and the tail light thing just happened on monday, june 17, 2019.
Vehicle fails to stop properly at low speeds. Brakes become 'hard' and vehicle will roll to a stop. Brake lights appear to have a short and work intermittently.
Vehicle brakes feel like they lock up often I have to push as hard as I can, the dash says "brake assist" or something when they feel like they lock up. I've almost hit cars several times because they lock up like this and theres nothing I can do. Happens often and varying speeds 10-70!
Pulling into parking spot low speed braking power was lost.. Hard brake pedal.
The most disturbing concern is the fact that I lost my brakes as a result of a known problem that gm has even recognized relating to a faulty vacuum booster pump. I incurred a $500 repair bill despite gm's acknowledgement of the problem and willingness to pay for cars with less than 70000 miles. Unfortunately, mine was over the allowable mileage. Additionally, I am looking at a $1500 repair bill for a sealed headlight replacement and another $300 bill for a side detection system ( lane departure warning). Gm made a poor car that is unsafe and is not properly addressing the problem.
Tail light lighting strip spontaneously malfunctioned and stopped working. Vehicle has no light and no brake lighting which could have resulted in auto accident. Within a month the headlight has burned out resulting in a blinker malfunction. Vehicle was on highway when both lights malfunctioned
Driving the 2015 gmc yukon, tried to apply brakes, brakes went to floor and no braking available. Had to jump a median in the road to get car stopped. Called dealership, they were aware and said drive it there, almost wrecked again pulling into parking ot at dealership. You cannot drive the car like this, very dangerous. Being told its a common problem that gmc knows about but will only fix if its 70,000 or 6 years. Not ok, fix the problem my car is still under warranty until 100,000 miles! Vacuum pump, vacuum pump belt, brake booster, master cylinder and vacuum pipe all need replacing!!!!!! Make a recall before more people are hurt!!!!
Brakes become hard to push when going below 5mph and doesn't want to stop when pressed. Sometimes you press brakes and push as hard as you can and it just keeps moving until he slowly comes to a stop. It happens when traveling at a low speed or even at a stop and you need to barely move forward or backward. Makes it hard to park in tight spaces, move in traffic, and in a drive-thru. It will happen moving forward or backward - that doesn't matter it also happens when you come to a stop and barely move again and need to stop - brakes become hard and it stops on its own time. I even had it happen when I was at a stop light on downward hill and the car in front of me started moving and suddenly stopped again and my car didn't want to stop. It happens all the time since around nov 2018. It seems to be getting worse
Had an accident in 2018 air bags did not deploy and when tried to stop and pushed on my brake pedal, it was like it froze and I was still moving. I was driving 37mph on a city street when the accident happened.
On repeated occasions (from 2015 to 2019) I have experienced sudden acceleration at low speeds and sudden jerking motions. The transmission and speed controls are unpredictable and dangerous. This is hazardous and may result in a loss of control. I have also experienced numerous issues with the brakes including a stuck caliper at approximately 42,000 miles. I reported these issues and numerous other issues to gmc corporate, tustin buick gmc only to be told that it was a software issue and things are satisfactory and safe. Gmc contends that the vehicle is fine and declines to assist with issues. This is an ongoing issue. The date below is approximate. The mileage is approximate on all entries.
Brakes get hard when towing my boat and sometimes in stop and go traffic.
Brake pedal gets hard in slow moving and stop & go driving causing vehicle to be hard to stop with no break power. This situation gets worse when towing a trailer in traffic an down hill where you need the brake power
My gmc youkon denali has brake lights that are known to dealers to fail. Yet there is not a recall. I looked on the inter net and saw that there has been this problem since 2015 to 2018. Because of a joint that was soldered instead of a wire. I know why when I brought it in for recall that the service man looked at my stop lights.
Brakes are unresponsive and stuff brake pedals at low speeds. While driving at very low speeds the brakes will not engage and stop the vehicle. I was pulling into a parking stop and the brakes would not respond unless I stomped on them going less than 5mph. It happens often with the same scenario. Driving at a very low rate of speed and my vehicle will not stop when the brakes are pressed.
Within the last year on my 2015 my AC compressor has gone out, radio screen quit working, brake pump/booster faulty, and now rear brake light quit working. All seem to be very common in this year model. My car has less than 70000 miles on it!! Gm is either doing a crappy job on their $60000 vehicles or a recall needs to be done.
Braking becomes "hard" after braking while moving (e.g. In rush hour traffic or slowly going down a hill).this started while going downhill in an animal reserve. I was inching forward to get better views of the animals. Halfway down the hill the brakes completely failed. I had to literally stand up on the brake, and it still wouldn't stop the car. After taking my foot off the brake for a bit, the problem fixed itself. When I took it to the dealer, they said it was a faulty vacuum pump ($500 repair), but online research says replacing the vacuum pump doesn't solve the problem. Note, this problem continues to persist.
When slowly turning into garage, brake pedal became "hard" and required significant foot force to stop the vehicle. The condition has not improved and I will have to tow the vehicle to the dealership for repairs.
Faulty brake vacuum pump caused vehicle to not brake at slow speeds when attempting to stop in drive thru restaurant and stop light on state route.
When towing a small camper and traveling at slow speeds my brake becomes hard and must be pressed very hard to slowly stop the car. This does not happen all the time but has happened multiple times and is quite scary. The vehicle travels further before stopping than with proper braking which has the potential of putting me in a dangerous situation. Dealer says it is a vacuum pump beginning to fail but there are no pumps available nationwide so I cannot have it repaired! Notes about dates and mileage are for the last occurrence and as close as I can recall for each.
On two separate occasions when parking, and driving at a high rate of soeedv( 60 MPH)on interstate in sudden stop and go traffic brakes failed to engage after working properly before and again after with more than a month between incidents . The second incident occurred on 12/31/18 after the vehicle had been in for routine oil change and service that included a multi point inspection at the gmc dealership where it was purchased brand new. The vehicle is frequently serviced as required and has tires with good tread . The failure is alarming as it often comes when trying to make a necessary stop and the failure comes out of the blue then returns to normal. This occurrence should be addressed by the manufacturer and should be taken very seriously since the matter is literally a matter of life and death. I will be making an appointment for my vehicle to be checked out and will update the dealership findings .
At slow speed in stop and go traffic the brakes will work one time and the next time I would have to stomp the brake pedal to get the SUV to stop it was on a street when it happened I have tried to contact flow gmc of winston-salem multiple times and can't get anyone to talk to me
Power brakes failing at low speeds-in freeway traffic-pulling into driveway requires strong pressing on brake pedal as if the brakes are intermittently loosing power assist
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