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Problems with 2015 GMC Yukon EXTERIOR LIGHTING

On average, the 2015 GMC Yukon starts to “feel” problems with the EXTERIOR LIGHTING and its various aspects after 57 959 miles.

Components Affected by EXTERIOR LIGHTING Issues

We have classified the 193 complaints from 2015 GMC Yukon about EXTERIOR LIGHTING into the following categories.

BRAKE LIGHTS 4 TAIL LIGHTS 4

Recently reported EXTERIOR LIGHTING problems on 2015 GMC Yukon

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.

At 32,000 miles we had our back tail light go out. gmc replaced it at cost to them which was around $280 . less than 6 months later the other tail light went out and dealer told us 'lights go out'. we paid full price $680 to have it replaced. now our left tail light is out again and it'll be another $680 or more to be replaced. this is ridiculous. they are led tail lights. these she last a very long time. thousands of others are having this problem. car gurus has a blog solely about this. the odd thing is they are mostly 2015 yukon's. a recall needs to be done on this problem and the thousands of people dealing with this should be reimbursed for replacing these tail lights over and over! if you pay 60,000 for a car you should not go through this.

Tail lights work inconsistently, dealership tells me it's common problem with my year and model.

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.

Rear passenger tail light needs to be replaced at a ridiculous cost. extremely poor engineering design. that is if it wasn't intentionally designed to fail. on the low end $5-600 to replace a tail light??? what a joke. sad thing is i'm lucky, many many people have had more than one light assembly go out. i've bought gm for my last 3 vehicles (envoy, tahoe, yukon) this will likely be the last time i ever buy gm.

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!

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.

I have a 2015 yukon denali with about 63k miles. my tail lights do not work properly. the driver sign works randomly. at time it works in the day and night others it appears to only work in night time or when the vehicle is not directly in the sun during the day. yesterday evening i notice the passenger side was out instead of the driver side. i have went to gmc dealership and they all say that the part needs to be place and will cost around $800 for one light. this is a common problem in all gm made vehicles and seems to be more noticeable in gmc yukons. i have been told by several people my light was out then it pops back on and even the police has stop me for my tail light before. this is a safety issue that could cause warm to me and my family (two small toddler) which i transport to and from school or someone else family due to alot of your customers mainly purchasing this vehicle to transport their families from one place to another. it troubles me that we pay $60k - $70k for these vehicles and the only solution is to replace the light with the same faulty part. this issues happens when park and driving. i live in baton rouge, la and i use the interstate to get to and from work each and every day. i would like to see gmc provide a solution that fixes this issue and not profit off of a bad part but forcing it's customers to constantly have to replace bad tail lights. i love my gmc yukon and will continue to purchase one as long as i feel i'm getting a quality vehicle for the amount of money i'm paying.

2015 denali with 30k miles (still under manufact warranty) brake lights quit working. dealership stated tail light assemblies needed to be replaced.

Stop light dont work

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.

Driver side break light works intermittently. after researching multiple owners in similar model years have noted the issue being inside of the light itself having an electrical issue. but the dealership wants $750 for a new one when the problem is wide spread, needs to be recalled and made right.

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.

Rear passenger tail light out and passenger window only goes half way down.

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.

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.

Passenger side tail light stops working occasionally. this affect's the brake light and night driving. it has stopped working up to a week at a time, but then starts working again. it might be weather related.

One of my led tail lights went out but it randomly comes back on, then off again. when i notified the dealership they mentioned this is occurring a lot on this model and age.

Approximately 6 months after purchasing our 2015 gmc yukon denali, having only driven under normal driving conditions on highways and surface streets for 15k miles, the passenger side tail / brake light went out. it was taken in for warranty and replaced by the dealer. approx 6 months later the driver's side tail / brake light did the same thing, and was also replaced by the dealership. now approximately one year later the rear passenger light is out again and dealer wants $600.00 to replace the faulty brake light lamp, but can't because they're in such demand based on the defective part, that they are backordered. a quick internet search indicates thousands of people having the same issues.

Rear brake lights stop working intermittently, sometimes one doesn't work, sometimes both are out, sometimes both work. seems worse in the hot weather. taken it in multiple time, 1st 2 times couldn't duplicate the outage, 3rd time they said it needed both taillight assemblies replaces for $1200. then they worked all winter, now not working consistently.

Rear tail/brake light failed after functioning intermittently for a month. gmc dealer replaced the entire assembly with a new gm part at a cost of over $800. gmc dealer explained that despite chronic failures of this particular part, gm refuses to recall. failure appears to result from a faulty circuit board that cannot be replaced or repaired easily. intermittent nature of the failure is an unsafe condition, especially at night or in foul weather.

The rear brake lights have issues one side stopped working a few weeks ago and now the other side stopped working they are not cheap to repair and the car is not even got 40,000 miles on it i would expect that they would at least last about 80,000 miles.

Over the life of owing this new car, from march 2016 to july 2019, the rear passenger and driver side tail light assembly have each failed once and were replaced by my own expense. again for a third time total, this month the passenger side taillight assembly repeated its failure to have the break light to function. i feel this amount of part failure inside 3 years is too extreme and is due to poor design by the manufacturer. these failed parts happened at 16,000, 30,000 and 50,000 miles of vehicle use. none of the taillight parts were ever physically damaged before. the cost of the part alone is $795.00. that is even more rediculous considering a home led bulb lasts longer and costs much less.

Tail lights only work intermittently

Passenger side rear brake light suddenly stopped working. it is an led light which should never have to be replaced. our local gmc service department said that it is the 'driver' attached to the led bulb that is faulty, but it cannot simply be replaced. they have to reinstall an entire tail light which apparently is pretty costly. i was quoted $925. again, nothing wrong with the light bulb itself. shouldn't cost $925 to fix.

My passenger side brake light went out a few months ago. turn signal works. now my driver side brake light is out. turn signal does work. to get both fixed, i have to have the entire unit replaced which is quite expensive. i already replaced the front passenger unit due to the running light going out 2 years ago. brake lights, are necessary for safety which is a problem. these led lights are supposed to have a longer functionality. and they cannot be replaced easily or cost-effectively.

Driver side rear brake light stopped working. dealer wants $800 to replace brake light

Rear tail light went out and the only solution is to replace the tail light? this is nutts

Driver's side brake light not working. apparently a common problem in these year yukons, and gmc refuses to acknowledge the problem. repair is exorbitantly expensive, and gmc should pay for the repairs. the vehicle only has 50,000 miles, and has never been in an accident.

Purchased vehicle (used) from dealer less than 2 years ago. driver taillight went out. not covered under warranty but is a safety issue that according to several forums in a known problem. the taillight is architected, engineered, and built in such a way as to be very expensive to replace, break often, and discourage diy or non-dealer repairs. the vehicle was stationary when the problem was noticed.

Taillight assemblies keep failing. dealer replaced one under warranty, but other now failed and charging $800+ to fix. defect in design/manufacturing of critical safety component. it's a common and known defect in the part. our other yukon's have the same issues.

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).

Replaced passenger tail light due to led failure in 2017. driver's side failed this week. full replacement of housing is required, and nothing that i can find states any design improvements have been made to date. this means further replacements of the entire light (part alone is quoted at around $700) will be necessary throughout the life of the vehicle. it appears from a quick internet search that there are a large number of vehicles effected, yet the dealer claims there is not a design issue and no recall has been issued. given this failure makes the tail light inoperable as well as the brake lights, this is a serious safety issue.

Part of the circuit board in the tail lights was very poorly designed. it is a sealed assembly without serviceable parts. a very thin strip of metal, one at the top, and one at the bottom break due to thermal expansion and contraction. it gives no warning no lights nothing just all the sudden no tail or brake light. it's not right it isn't serviceable, and the dealership charges $400 plus for a new one. what happens if both fail at the same time. g.m. needs to be held liable, and do the right thing. after all they are supposed to be "professional grade".

Takata recall: i was informed today by another driver that both of my rear break lights are out, and i checked and dont have any rear break lights only the strip light up top works. i was driving on a city street and have only ever driver on city streets or highways. this is some bull crap considering the price of these vehicles and need a recall for the rear break lights, because they are $800.00 to replace each break light.

The rear brake lights of my vehicle went out in july of 2017 both of them within a week, driver and passenger side. i had the whole light panel replaced under the warranty on each of them and now again my passenger-side brake light has gone out. it came back on momentarily in the morning and then went out again. i have researched the issue and found that many people are having the same problem anda friend of mine currently has one out on her 2017 yukon which she is taking in to get fixed. speaking with the service advisors at the dealership they informed me that this is a common problem but no recalls have been issued for it. as of today the part is also on backorder and they do not know when they will get the part in. so in the meantime i am without a brake light.

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.

Both led tail light units on 2015 gmc yukon failed within 6 months of each other. the led stripping no longer illuminates. exact same problem on both driver and passenger sides of vehicle. was informed by dealership the only option for repair is replacement of the entire light at a cost of over $900 per tail light.

The tail light failed with no physical damage. l.e.d. failure no tail light or brake light. bulbs are not replaceable & the whole tail light needs to be replaced

Tl* the contact owns a 2015 gmc yukon. the contact stated that the rear driver's side brake light and passenger side tail light were burned out. the contact stated that the brake lights would not illuminate. the vehicle was taken to ed bozarth chevrolet (2001 s havana st, aurora, co 80014, (720) 746-2716) and john elway chevrolet (5200 s broadway, englewood, co 80113, (720) 259-0391), but the parts were not available. the vehicle was not diagnosed or repaired. the manufacturer was made aware of the failure and provided a case number. the failure mileage was 81,000.

Both of the vehicle tail lights have become nonoperational due to a manufacturing defect. brake lights do not work. the tail lights are a complete assembles and consist of leds.

Both of my taillights went completely out on my 2015 yukon denali. i was told by a stranger who asked me to pull over that both lights were completely out (specifically inside our residential community). i have a four year old and a baby with my hands full. i was so grateful to the stranger that informed me- preventing a potential accident with my babies in the car. i called to see how much the replacement lights would be. with labor we were looking at $2,000 at the dealership! to me this was outrageous... especially after doing research and seeing that many 2015 yukon denali owners have the same issue and this is not yet a recall for gmc! when will the issue be recalled?... heaven forbid not after a horrific accident from a blatant safety issue that they are not taking seriously! we proceeded to call gmc complaint department to file a complaint- the woman lied and told me she had never heard of this being an issue but even if she had she couldn't tell me.... needless to say my complaint went upon deaf ears at gmc. i had no other choice but to order two new taillights through gmc.... now that i am awaiting my order i'm thinking that i could experience the same issue with my new lights. adding to my frustration, the parts department solidified that the taillight issue is incessant with this make, model and year... and they need to keep my taillights when they issue my new lights. i couldn't help but find this strange and became skeptical that they need to keep my faulty taillights. i'm frustrated and nervous driving my vehicle with my children. i'm worried for our safety and i pray my complaint is taken seriously. gmc needs to be held accountable for their faulty products. my left light is half way out now bc my dad tried to weld a bridge to turn the lights back on in the mean time... didn't end up working.

Driver side rear taillight not working, was told it was a broken solid circuit by the dealership. they want close to $1000 to replace the entire assembly. this is a very well known problem that gm is not recalling!!!!

Driver side brake light stopped working on 2015 yukon w 65k miles and no accidents. dealer said it's a known issue and part is $800 to repair due to led assembly. gmc customer service offered a $100 voucher to go towards new part (if i took my car in and paid for a diagnostic test) which is a joke. as of today there are 278 complaints regarding 2015 yukons and 60% of those are regarding exterior lighting. however gmc customer service would not admit faulty tail lights were a "known issue." why isn't this a recall?! and why are consumers still be charged $800 for faulty tail light assemblies? gmc is profiting off of known wide-spread issues and needs to be held accountable. the brake light is on backorder due to the sheer number of others experiencing this same issue. my car has had shocks replaced at 15k miles, electrical issues with interior lights, ac problems, and now this all before 70k. come on gmc....step it up or else i'll be trading my pos yukon in for a chevy.

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.

Drivers side tail light assembly does not work. there was no damage it just quit working.

Left rear brake light fixture (led style) completely failed after 54,000 miles. it's not the leds themselves. something else in the power supply failed.

Rear led taillights work intermittently. found several forums where this happens to a lot of people. if you tap the taillight it sometimes begins working again. truck only has 60k miles and gm wants over $1200 to fix (replace both taillights). evidently there's a circuit board that goes bad inside. i had this at gm to be fixed but because taillights were working at the time, they found no problem.

Rear taillight randomly going on and off. interior light randomly flicker, theft deterrent system often activates, vehicle dash systems randomly reset and most recently vehicle steering wheel locked and car turned off while i was driving with my kids in the car and in a school zone!!!!! this could have been tragic and was very scary!!!!

My taillight assembly led lights have gone out. i've read about this issue and it's a common issue with this vehicle and the dealer charges close to $1000 per light to repair this issue.

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