Tail led lights and brake lights stopped working then start working partially then back to not working, went to have them replaced and it cost $1500 and then 6 months later back to partial working tail led lights and brake light then a small strip of them working then nothing at all then back to working then back to no light permanently again!!

- Philippi, WV, USA

Passenger side brake light stopped working

- Francisco, IN, USA

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.

- East Amherst, NY, USA

Passenger break light intermittently works. Took to GMC they said there is no known issue which is a lie! hundreds of owners online having the same issues. They said they can't nail down the issue since there's clearly power there. They want me to buy a while tail light assembly! about 900 dollars for the same faulty part!

- Acme, WA, USA

Both tail lights work intermittently. I have been stopped by other drivers on several occasions to tell me that one of my tail lights was not working. Both lights are effected, but not usually at the same time, so I at least have one working light at a time. This has been happening since I purchased the vehicle from the dealership used car lot on 01/23/2019 whether I am sitting still or driving down the road. When the light goes off, you can hit the light assembly with your hand and it will momentarily come back on.

- Katy, TX, USA

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

- Booneville, MS, USA

Our 2015 GMC Yukon denali has had the rear tail lights intermittently stop working for some time now. We even got pulled over by the police and were issued a fix it ticket!

- San Jose, CA, USA

Rear tail light is no longer working. Lights are led, so the entire tail light needs to be replaced.

- Fort Myers, FL, USA

The circuit boards on my brake lights are out. I have found that when moisture gets in them or when I hit a bump in the road they stop working. Sometimes they work and sometimes they don't. this happens daily...when they vehicle stationary, in motion, on a city street or on a highway.

- Pflugerville, TX, USA

Brake and tail lights go out intermittently while driving. I've been stopped multiple times on road with other drivers telling me. I also have several friends with same model telling me this happened to them.

- Simi Valley, CA, USA

Shortage in passenger side tail light. Dealership quoted $800 to replace complete light.

- Collins, GA, USA

The tail lights/ brake lights the cheaply made and have read of hundreds of people with this same issue I'm having that the circuit breaks and they stop working. This is a serious safety issue

- San Diego, CA, USA

Both rear brake lights have failed

- La Canada, CA, USA

The led tail lights are not working properly and cost 500 to replace it which is ridicoulous.

- Arkadelphia, AR, USA

The brake lights work sometimes and then don't, this is a huge issue. If they stop working while driving this could kill me or another driver or someones passenger(s).

- St. Augusta, MN, USA

Tail brake light is out. Vehicle has not been in any type of accident.

- Sackets Harbor, NY, USA

I purchased a 2015 GMC Yukon and am the second owner. Last week, my driver's side brake light went out. I noticed it while driving when someone behind me told me it was out. Six months ago, I replaced the passenger side brake light which cost $875 to fix (the entire light assembly must be replaced, not just a bulb). A little research online has proven that this seems to be a common problem for many other GMC Yukon owners. Led lights are supposed to last the lifetime of the vehicle, but it would appear that something about the product is defective. This is simply outrageous and GMC knows that it is a problem.

- Littleton, CO, USA

Brake led lights go out and on, sometimes one side works, then other times the other side goes out, and sometimes both brake lights do not work. Sometimes by banging the cover, it turns on and works, but then they go out.

- Maywood, CA, USA

Rear lights, tail lights stopped working. You cant just change the bulb. Being leds the whole piece has to be changed. Apparently this is a known issue and GM knows about it, yet theres been no recall??

- West Monroe, LA, USA

All break lights stopped working at the same time on both sides of vehicle. Turn signal, back up lights, blinkers all still work. I was told the entire break light had to be replaced for a cost of apx 2K. It seems that this is a very common problem and the cost of repair is astronomical.

- Harpswell, ME, USA