160 problems related to brake light have been reported for the 2015 GMC Yukon.The most recently reported issues are listed below.Please also check out thestatistics and reliability analysis of the 2015 GMC Yukon based on all problems reported for the 2015 Yukon.
1 Brake Light problem
Failure Date: 03/06/2021
The contact owns a 2015 GMC Yukon. The contact stated that while operating the vehicle, it was discovered that the rear brake lights were inoperable. The contact determined that the failure was intermittent by tapping on the light housing. The cause of the failure was not determined. The local dealer ben mynatt Buick located at 289 concord pkwy s, concord, nc 28027 was notified of the failure. The manufacturer was contacted but no assistance was offered. The failure mileage was 79,800.
2 Brake Light problem
Failure Date: 01/20/2021
Passenger rear brake light is out. All led lights will not light up with running lights on or the brake depressed.
3 Brake Light problem
Failure Date: 10/01/2020
So my brake light on rear all have gone out due to bad led lights or some known component goes bad. #2. Fuel pump is bad. #3 radiator has a crack in it. This is a 2015 Yukon.
4 Brake Light problem
Failure Date: 09/19/2020
One of the break lights is out. They have made the brake lights in such a way that you can no longer just replace the bulbs but have to replace the entire unit at a cost of $885. There is a design flaw in the 2015 and 2016 models that causes the brake lights to fail. GMC is aware of it and did extend warranty coverage so that if you are "lucky" enough to have them fail with less than 72,000 on your vehicle they will replace them at no cost but after that they will not. They know the product and it should be recalled. It is a safety issue for people to drive around without brake lights because it costs nearly $900 a piece to replace them! perhaps they shouldn't have turned what used to be an cheap, easy thing to fix on your own into a $900 repair in the first place. Now that they have they should at least stand behind the product.
5 Brake Light problem
Failure Date: 09/12/2020
My passenger brake lights stopped working. Apparently the only way to fix is to buy a whole new unit which costs $300-$500.
6 Brake Light problem
Failure Date: 09/01/2020
Passenger rear brake lights quit working. Appears to be a defect in the design that causes a break in the circuit on the light assembly. Repair can be manually down by cutting through plastic of assembly and soldering break, or replacement of entire light assembly. No accidents - just normal driving.
7 Brake Light problem
Failure Date: 08/12/2020
2015 rear brake lights work intermittently and need to be replaced or repaired. GMC know there are numerous complaints about this problem and have done nothing. Huge safety issue!!.
8 Brake Light problem
Failure Date: 07/10/2020
This 2015 Yukon slt has 2 failed rear taillights and brake lights. There is no indication of this failure in the instrument panel. My wife was advised by text from a friend these lights were out. The replacement assembly is appx $500. 00 per side plus installation. I was advised this is not a warranty item and it is also a common failure on these vehicles. Not sure when the failure occurred. The 3rd raised light was operational when the brakes were used. First noticed around July 10, 2020. I have several cars from 2002 on which warn of a light failure. These led lights were advertised to last for extended periods. This issue is dangerous and uacceptable.
9 Brake Light problem
Failure Date: 05/15/2020
The contact owns a 2015 GMC Yukon xl. The contact stated that while depressing the brake pedal the rear brake taillights failed to illuminate. The vehicle was taken to keweenaw Buick GMC located at 608 quincy st, hancock, mi 49930, to be diagnosed. The contact was informed that the rear brake lights were defective and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, but provided no assistance. The failure mileage was 102,000.
10 Brake Light problem
Failure Date: 05/06/2020
Brake light goes out due to wiring issues.
11 Brake Light problem
Failure Date: 05/06/2020
Rear brake lights assembly failure (leds) both driver and passenger. Common failure known to GMC Yukon customers.
12 Brake Light problem
Failure Date: 05/01/2020
Brake lights intermittently not illuminating and going out. Both driver and passenger brake lights.
13 Brake Light problem
Failure Date: 03/30/2020
The rear passenger & driver side brake lights just randomly stopped working. Not a bulb issue as it is the led panel of lights. The back-up bulb still works, but the led brake lights don�t. Led lights should last years. Dealership says it happens a lot to these vehicles, and I have to buy a whole new unit for each side. This is a huge safety issue - break lights failing due to poor wiring. Again not a replaceable bulb issue, it is due to a wiring issue within the led lighting unit itself.
14 Brake Light problem
Failure Date: 02/26/2020
The right rear brake light led strip no longer works. I have noticed that this is an on-going issue with other consumers. The dealer wants $650-$750 to replace. Most of the time, it is a wiring issue that needs to be repaired. Unfortunately, the plastics are glued together preventing access to make the repair.
15 Brake Light problem
Failure Date: 02/14/2020
The rear passenger brake lights just randomly stopped working. Not a bulb issue as it is an led panel of lights. The back up bulb still works, but the brake lights don�t. Dealer says it happens a lot to these cars, and have to buy a whole new unit. This is a safety issue - break lights failing due to poor wiring. Again not a replaceable bulb issue, it is due to a wiring issue within the lighting unit itself.
16 Brake Light problem
Failure Date: 02/01/2020
The passenger side brake light will not illuminate. I'm not exactly sure when it began, when I first found out it would sometimes work and sometimes not, now it has be staying completely off.
17 Brake Light problem
Failure Date: 01/26/2020
Rear brake light does not work. Gm dealership states that this led brake light was designed to be lifetime. Received letter from gm stating that they are only covering the free replacement thru 72,000 mile. My vehicle has more than 72,000 miles. Cost to repair $800.
18 Brake Light problem
Failure Date: 01/23/2020
For the past 3 years I have taken my truck into the dealership with complaints about intermittent brake light function. Specifically the lr light was not working. Once I was told I had to replace the entire assembly $800 - I came in to have the repair done, then I was told there was no issue. I returned again when the police gave me a warning about the same light. Was told no issue. Several times I have been alerted by other drivers that the light was out - sometimes it works if I smacked the exterior of the assembly but not consistently. Now - all of the brake lights are out lr/rr and the bar. I cannot drive it safely and I cannot believe that the only option is to pay several thousand dollars to replace it. Many have the same complaints. This should be a recall! we already paid several thousand dollars to buy this truck - it should not have these issues so early on. I have seen many other Yukon's on the road with the same issue. My car is 2015 - the problem started almost immediately for us after purchasing. This is not acceptable.
19 Brake Light problem
Failure Date: 01/10/2020
Break light intermittently illuminates on driver's side. Received letter from GMC dated December 2019, "intended to make you aware that some 2015 model year GMC Yukon xl vehicles may have a condition where the brake lights intermittently do not illuminate". The would repair it with no cost only if this would have occurred within 6 year of the date your vehicle was originally placed in service or 72,000 miles. Of course, we are way above that. Dealer quoted $800 cost repair.
20 Brake Light problem
Failure Date: 01/01/2020
Rear brake lights work intermittently. When taken to the dealer they say they can't find the problem. It is a safety issue and a common issue among these cars. It is horrible that gm will not fix this problem for free.
21 Brake Light problem
Failure Date: 12/16/2019
We purchased a 2015 GMC Yukon xl denali in July 2019 from jackie cooper in edmond, ok. In December 2019, we noticed that the brake lights started intermittently going out. Some days they work fine, and then the next day they don't work at all. We've even had people stop us and tell us that the brake lights were "flickering". This is obviously a safety concern, and with the extraordinary cost to replace one of these lights, it's a budgetary concern, as well. Since we started noticing it, we also have heard of other owners of this same model and year that have had the same issue. This certainly seems like a defected product which needs a better solution. Please tell me there is another solution besides spending $1,000-$1,500 to replace something that used to be a simple bulb I could find at a auto parts store.
22 Brake Light problem
Failure Date: 12/01/2019
Driver side rear brake light working intermittently, approx. 10% of the time. Called dealership and said it is known issue with most denali brake lights. Was quoted to replace entire assembly $900. Each side for this known safety issue. This is a serious safety issue and known by GMC with no recalls available.
23 Brake Light problem
Failure Date: 12/01/2019
No brake light in both rear lighting assemblies. Started with the passenger side and now the drivers side. GMC issued a letter in December 2019 stating they'd pay for repairs if vehicle is less than 6 years or 75,000 miles which ever comes first. We'll I'm over on both. Gmpp extended warranty doesn't cover this repair. Spend $75k for this truck and now this.
24 Brake Light problem
Failure Date: 11/24/2019
Brake lights work sporadically, until the passenger rear finally stopped working all together. Contacted the dealership and was told this was a very common problem, that they replace several a week, and my warranty would not cover it. Got a estimate of over $1600 to repair it. Was pulled over on several occasions each time was told it was either the left or right not working. Then miraculously both would be working. If this is such a common problem like the dealership stated, then why hasn't gm recalled or discontinued using them? this is a serious safety issue and not as simple as replacing a bulb. Way to costly to just bring in for repairs!.
25 Brake Light problem
Failure Date: 11/15/2019
Tail lamps, tail lamps tail lamps! non serviceable led illumination bulb circuit is faulty leading to intermittent operation. Having part time brake light is against the law and more important to me, leaves my family in an unsafe situation. Web search leads to many motorist having the same problem as I. As a paying taxpayer we should not be sold faulty goods that may have dire consequences.
26 Brake Light problem
Failure Date: 10/23/2019
Was pulled over by a police officer and told that my passenger side brake light is not working. Blinker and reverse light work, but not the brake light. There have been no impacts and there is not any crack or moisture inside the light housing.
27 Brake Light problem
Failure Date: 09/13/2019
The brake lights work and then stop working. It is not the bulb nor the fuse. I was told it could be the light assemblies which is very costly. This has been going on for a few weeks. I have done research and it seems there are a lot of issues with the brake lights for this make and model of vehicle. Many people state they have the same issue.
28 Brake Light problem
Failure Date: 08/25/2019
My brake lights on my 2015 Yukon dinali went out on the right side. I was informed by the dealership that they are not responsible for this and none of my warranties will cover it.
29 Brake Light problem
Failure Date: 08/21/2019
Driver side brake lights only work intermittently. The circuit on the light assembly is going bad.
30 Brake Light problem
Failure Date: 08/15/2019
Tl- the contact owns a 2015 GMC Yukon. The contact stated while driving in another vehicle behind his wife he noticed her rear passenger brake light were inoperable. The vehicle was taken to local dealer crawford Buick GMC (6800 montana Ave, el paso, TX 79925) where they replaced rear passenger brake light bulb. The contact stated that the rear driver brake light was inoperable. The manufacturer had been informed of failure. The failure mileage was 115,000. Ab.
31 Brake Light problem
Failure Date: 08/08/2019
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.
32 Brake Light problem
Failure Date: 08/07/2019
Tl the contact owns a 2015 GMC Yukon. The contact stated that the passenger side brake light was out. The contact also stated that this was the second time the brake lights were repaired. The vehicle was not taken to the dealer or an independent mechanic for diagnostic testing. The manufacturer was notified of the failure. The vehicle was not repaired. The approximate failure mileage was 80,000.
33 Brake Light problem
Failure Date: 08/01/2019
The rear drivers side brake light is working only intermittently.
34 Brake Light problem
Failure Date: 08/01/2019
Brake light and parking light quit working. Went to dealer and they said you have to replace the whole led light assembly. Would cost $850. 00.
35 Brake Light problem
Failure Date: 07/29/2019
Brake light does not work on passenger side. Cannot be replaced/repaired because the part is on back order.
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