Both LED tail lights started flickering and failed within a month of each other. The mechanic said this was a known issue with these lights and that the circuit board failed.
2016 GMC Yukon XL lights complaints
Page 3 of 4: complaints 41 to 70 of 84, newest first, as owners wrote them.
My wife was driving down a major road and a person pulled next to her at a stop to tell her that her brake lights were working only part of the time. Gm had just serviced my vehicle and didn't catch it, and upon researching the issue, it is a known faulty design of the tail light assembly. The LED brake light starts intermittently failing at the 2 year point, leading to drivers following drivers to not know that the leading vehicle is stopping. This is a common issue and the only response from gm is to make the customer buy a new $700 brake light assembly. The issue is so common that multiple companies have started brake light repair services and multiple youtube videos exist to walk individuals through the process of repairing their own brake lights. The cost of the repair is so steep that I hesitate to get the problem fixed, and though gm reportedly has developed a replacement light assembly that corrects the fault, they are not taking responsibility for the defective brake light assemble that these vehicles come off the assembly line with. The major danger is that we drive from the front of the vehicle and likely do not know our brake lights are intermittently failing--since gm cannot even catch this when they do service on vehicles (mine had been in the shop for an oil change a few weeks before the brake issue), then they are leaving a lot of customers driving without brake lights to avoid the cost of the repair even though they approved a faulty design.
Running boards failing to work properly all the time. Sometimes will start to go down but return up when opening door. Will also fail to go up after closing door and remain down. Middle row dvd screen is black and not working. Rear brake lights working off and on. Horrible loud squealing sound under the hood. The vehicle will also begin to shake randomly and feels jumpy at times.
Tl* the contact owns a 2016 gmc yukon xl. While driving various speeds or while the vehicle was stationary, the rear brake lights either intermittently illuminated or did not illuminate at all. The vehicle was taken to an independent mechanic where the contact was informed that the tail light assembly board was loose. The vehicle was not diagnosed or repaired. The dealer was not contacted. The manufacturer was made aware of the failure. The failure mileage was 42,348.
Drivers brake light shorts out and stops working.
The right tail light and brake light failed at only 44,000 miles. Fails to work in all phases of operation.
The LED brake lights fail intermittently and then completely due to a design flaw of weak circuitry. The LED circuit breaks from fatigue in the brake light housing. There is no dash notification to tell you when a brake light has failed. Gm replacement brake lights cost $650 each but they have the same design flaw. Pictures attached.
Driver side rear brake and tail light and turn signal works intermittently. Sometimes it works fine, some times it flickers, and sometimes it it totally out. This issue happens randomly. I have seen it while parked, and while going down the road
Brake lights faulty. Have had both passenger and driver's side replaced. Drivers side is now shorting out again. Tons of owners of the yukon line have had the exact same problem with faulty tail lights. Law enforcement thinks it is a major safety issue which it is! These tail lights work intermittently or not at all!
The passenger side brake light stopped working with no indication on the instrument panel. This appears to be a common problem for model years 2015 thru 2019 due to a design/manufacturing defect. The repair involves replacing the entire taillight assembly for about $800. The dealer will not repair under warranty after 2 years or 24,000 miles even though it is a safety related defect. There is not a safety recall at the present time. My vehicle is over 2 years old but only has 20,000 miles.
Tl* the contact owns a 2016 gmc yukon xl. The contact stated that the passenger side tail light was inoperable. The contact took the vehicle to prince chevrolet of albany (2701 ledo road, albany, georgia 31707, 229‑432‑6271) twice for the tail light failure; however, the dealer stated that the replacement LED light was not available to correct the failure. The manufacturer was not contacted. The vehicle was not repaired. The approximate failure mileage was 60,000.
Gmc 2016 yukon xl denali back taillights and brake lights are out. All of them. Very dangerous. Gmc denied responsibility but everyone I know that has the same car says they have had issues. Never had this in any other vehicle in 30+ years of driving. They are obviously faulty and they need to accept responsibility
The right rear brake light quit working. Will come on when pushed against car. Dealer said it was electrical in the brake light unit.
My left taillight is out. There was no damage to the light it just stopped working! It would work sometime and sometime it would not. Now it is not working at all!
Rear driver's side brake light is inoperable. My vehicle is less than 3 years old. If my local police department views this as a problem, so should the federal safety agency. Gmc needs to recall this known problem. How many people have to report this problem for it to be addressed? This is a safety issue!!!
Rear passenger brake light has stopped working. Took into dealership and it appears gmc does not cover under warranty. It appears that there are numerous reports of rear brake light issues with gmc vehicles, specifically yukons but gmc continues to indicate this is not a problem.
Rear LED tail lamps have a high failure rate, leaving the vehicle in the dark at night. This has occurred 2 time over the past 2 years. Light has now been out since jan 2019 and gm claims they are still waiting on the part.
Drivers' side brake light/tail light failure at 44k miles. Gmc refuses to fix under warranty (even with extended warranty purchased) despite thousands of people having this issue. Dealer quoted $1,000 to fix just the one side and admitted this is a known issue. I was stopped by another driver at a red light to inform me of the issue - he said he nearly hit me because of it and was scared.
The passenger side taillight on the vehicle works intermittently. As of late is has been completely out and not functioning at all.
The right rear tail light brake lights have gone completely out. These are one solid housing and have to be replaced to simply fix the brake light. Reverse and turn signal lights are ok. The housings cost 600-700 dollars each to replace which is a ludicrous amount to have to spend. In order to be within regulations for inspection, these have to be working. We feel there should be a recall as there are lots of complaints online about these housings.
A few months ago the driver side taillight stopped working (or would only work intermittently). Took to dealer and they said it was $850 to repair. Filed complaint with gmc and as I was working through that with them the passenger side taillight stopped working as well. Now I have a vehicle that is not even 3 years old without working taillights. This is totally ridiculous. A $65,000 'professional grade' vehicle should not be having this issue at 55,000 miles. Gmc needs to wake up and recall these. Will it take a fatal accident to spur a recall??
Driver side brake light out . Its a known issue with the lights and gmc refuses to acknowledge its an issue...
The drivers side brake/rail light stopped working and vehicle only has 27,800 miles on it. Have seen and heard of many others with the same problem. Led lights should last longer then incandescent lights.
Rear right brake light went out due to known defect. Metal piece broke that allows a connection between the LED lights. Gmc should recall these lights since there are so many people having safety issues with them.
The rear brake lights are not functioning consistently. The turn light and reverse light work but not the break lights. They are their own assembly and have to be replaced at a cost of $650/each at the dealership. Online I found hundreds of others that had the same issue.
My car is barely 3 years old and has only 24,000 miles on it because I work from home. I specifically lease cars so I don't have to deal with issues. This cars rear passenger brake light no longer works! The service manager at the gmc dealership says they have to replace a great deal of these in cars not very old like mine. This is definitely a safety issue for brake lights to be going out on a 3 year old car! It has been out for months and I was just procrastinating because you must go to a dealership shop to get it replaced. You cannot get it at a part store yourself so my car probably only had 20,000-21,000 miles on it when this started.
Rear LED brake lights no longer light up.
Faulty break lights. The LED circuit is faulty and cracks which requires the entire light assembly to be replaced.
I have been told by multiple people that one or both of my brake lights has not been working. I have tested them myself and I too get mixed results. Sometimes one works and other times neither. Being that I drive 30 minutes to and from work everyday this is a major concern.
Vehicle has 52,000 miles on it and driver side tail light stopped working. It is an LED and should last for many years. Has not been in an accident. This is faulty manufacturing. Consumer protection needed.
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