2017 GMC YUKON Exterior Lighting Problems

We noticed the passenger side taillight was out. It’s not a simple bulb replacement but an entire assembly. It was put back in place and it lit up again. A few weeks later it wasn’t working. Pounded and tapped on it and it works again. We're guessing there is some sort of short so we asked for an estimate on getting an assembly replacement when it was in for a regular oil change. Shocked that a necessary part would cost $1,112.77!!! Whatever happened to changing a bulb for a few dollars?

The contact owns a 2017 GMC Yukon. The contact stated that while depressing the brake pedal, the driver’s and passenger’s side taillights failed to illuminate as designed. The contact called the dealer about the failure and was informed that there were no recalls or warranties on the vehicle associated with the failure. The contact was also informed that the repair would be an out-of-pocket expense. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 64,000.

Mileage: 64,000

Rear LED taillights circuit boards broken. Disabling both Stop tail lights causing serious safety hazard. We had no clue driving around and we didn't have any brake lights another driver had to tell us. So we googled this problem and it turns out that all of 2017 GMC Yukon have the same issue. There's even multiple websites to repair them as well as auto supply stores selling replacements for $1,000 and the dealership wants $1,500. This is a real problem and GM needs to make this right and recall all of these and replace them before somebody gets hurt if they haven't already.

Rear (Tail/Stop) lights on both sides, would work intermittently. Turns out it’s a known issue with the LED circuit boards. They consistently break in 2 places, leaving the vehicle with no tail lights/stip lights. GM knows of the issue , but since it’s NOT CONSIDERED a Safety Issue, they do nothing. It’s clearly a safety issue, as following drivers may not see lights, on the rear. Clearly, it is definitely a safety issue, as it can easily cause an accident, not knowing a car is there in the dark , or not knowing that the vehicle in front of them is on the brakes, and slowing.

The rear taillight has gone out. The LED board has a crack in the soldering causing the entire unit to malfunction.

LED brake light works intermittently.

The contact owns a 2017 GMC Yukon. The contact stated that on several occasions while the vehicle was parked, the passenger’s side rear taillight failed to illuminate. The vehicle was taken to an independent mechanic where it was determined that the full assembly light kit needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the issue. The failure mileage was approximately 80,000.

Mileage: 80,000

Rear brake lights fail due to an issue known by GMC - MULTIPLE GMC YUKON and YUKON XL have this issue. All within the same year. The metal connector in the Brake housing fails and requires it to be soldered or a complete replacement costing consumers $800+ for replacement. A severe safety issue as the Brake Lights quit working!!

Rear tail lights failure.

LED brake lights and tail lights not working on passenger side. Partial LED failure on driver side.

The right side break light works intermittently. It is out more than on. I was informed that there is a shortage in it and the entire assembly has to be replaced. I see countless GMC Yukons with the same light out. This is a huge safety issue.

The passenger taillight failed.

I purchased a 2017 GMC Yukon Denali brand new off the showroom floor. I have maintained the services thru GMC dealership. I had to replace the struts and rear and front shocks due to hydraulic system leaking and locking up my brakes and causing extra pressure on my braking system to stop my vehicle. This cost me over $5000 to replace out of my pocket and I saw there was a previous recall in 2019 for similar problem but i was told my issues were not covered under the recall. I have also had to replace both taillights within 2years of purchasing my brand new vehicle and now they are out again. This will be my second time having to replace the LED tail lights that cost over $375 light which were stated as never go out of lifetime guarantee. You cannot just replace the bulb you have to replace the whole tail light which takes weeks to come in and then additional labor costs. The previous

Driver’s side rear Tail light stopped working. It’s not even 5 years old. Bought August 2017 Brand new. I know there is a recall on 2015-2016 models for the same problem.

Passenger brake light stop working. Had the dealer ship inspect the light and was informed that the whole unit had to be replaced at a cost of $1000. so I purchased the part for $800. and replaced it myself tech. informed me that GM had a recall on the 2015 and 2016 model's but has not included the 2017 model year

Rear tail / break light no longer works .

Brake light not working.

Water in 3rd brake light

Tail lights do not work when I press the brakes. I have been warned multiple times by drivers.

The contact owns a 2017 GMC Yukon. The contact stated that while stopped at a stop sign, the brake pedal was depressed however, the passenger’s side rear taillight failed to illuminate. The vehicle was not taken to a dealer or independent mechanic to be diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 53,570.

Mileage: 53,570

Taillights and Brake light LEDs go out unexpectedly or work intermittently creating a safety hazard that drivers behind the Yukon are unable to see your taillights at night or when your braking causing Potential rear end collisions. For this common problem GM recalled the taillights of 2015-16 models, but the 2017+ models that still have the same exact taillights with the same issue but has not been recalled yet. Costing owners out of warranty $800 per taillight assembly. Please look into this safety issue.

The left rear tail light has gone out. There is no user replaceable bulb and this is a sealed unit. The deal has quoted almost $800 to replace. I feel a sealed unit should not fail prematurely and should last the entirety of the life of the vehicle. Had it been user serviceable, this would be a simple repair/fix.

Brake light on the passenger side has failed and non operational. I have researched this and found it is way to common to not be a manufacturer design issue.

LED taillights have both gone out. One was replaced by a "service bulliten" and it didn't cost us. The other recently went out at approx 80k miles. These are supposed to last the life of the vehicle. Replacement cost is $750. After doing research, there is a recall for 2015-2016 GMC Yukon taillights that are the exact same product. I contacted GMC and they refuse to replace the known defect part. This is going to cause someone to get seriously hurt. They know the part is defective or they wouldn't have had a recall on the 2015-2016 models.

The contact owns a 2017 GMC Yukon. The contact stated that while using the remote start-up feature, he noticed that the rear passenger's side brake light and taillight were inoperable. The vehicle was taken to the dealer and diagnosed that the taillight assemblies needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 41,169.

Mileage: 41,169

My tail light is faulty. It is working some, shorts out, stops working, I hit a bump, it starts working again. Almost caused a crash, the lady followed me to the store to tell me it was out. Took it to the mechanic and it was working again without any repair. Does this everyday.

2017 GMC Yukon Denali 4WD. Rear passenger brake light intermittently fails while driving Confusing and causing motorists behind my vehicle to receive inconsistent intermittent brake warning lights to alarm other motorists I have stopped. Someone is going to end up slamming into me because of this. It’s a dangerous common failure that needs to be address ASAP. I’m not waiting but GM’s executive corporate office will get the entire bill plus time lost and another BBB review.

The driver's side brake light and tail light has failed completely and the passenger side brake light and tail light fails intermittently. This is a safety issue that should be recalled. The vehicle only has 50k miles on it and I should not have to pay $800 per tail light to fix it!

Brake lights quit working

LEFT AND RIGHT BRAKING LIGHTS SOME TIME DO NOT WORK WHEN BRAKING. ONLY THE REVERSE LIGHT WILL WORK WHILE THE BRAKING LIGHT WILL NOT. TO ADD, WHEN THE FRONT HEADLIGHTS ARE ON, SOME TIMES THE LEFT AND RIGHT TAIL LIGHTS (LIGHT THAT IS ON WHEN NOT BRAKING) AND BRAKING LIGHTS WILL NOT WORK. I HAVE HAD TWO DIFFERENT PEOPLE PULL UP NEXT TO ME SAYING MY BRAKE LIGHTS ARE OUT IN THE LAST TWO WEEKS. HOWEVER, I HAVE OBSERVED WHEN THEY ARE WORKING IN THAT SAME TIME SPAN. THE LAST TWO DAYS, ONLY THE RIGHT TAIL/BRAKING LIGHT IS NOT WORK.

DRIVER SIDE REAR BRAKE LIGHT ISN'T WORKING ANYMORE. 46K MILES ON A 2017 GMC YUKON.

Mileage: 46,000

THE BRAKE LIGHT IS OUT AND A SINGLE TAIL LIGHT IS OVER 500$

BOTH BRAKE LIGHTS STOPPED WORKING AT THE SAME TIME. THERE IS NO FUSE. ONLINE REPORTS SHOW MANY PEOPLE WITH THE SAME VERY DANGEROUS, HUGE SAFETY ISSUE OF THEIR BRAKE LIGHTS FAILING. THE CAR 3 YEARS 2 MONTHS OLD.

TAIL AND BRAKE LIGHT NO LONGER WORKING

MY DRIVERS SIDE BRAKE LIGHTS RARELY COME ON. IF I HIT A BUMP THEY COME ON FOR A SECOND.

Mileage: 36,000

IN THE LAST YEAR, BOTH OF THE REAR TAIL LIGHTS HAVE FAILED IN MY 2017 GMC YUKON. TO HAVE THE DEALERSHIP REPLACE THE TAIL LIGHTS IT COST +$750 PER TAIL LIGHT FOR A CAR THAT IS ONLY 3 YEARS OLD. I WORK WITH LED LIGHTING AND ON AVERAGE, LED LIGHTS SHOULD LAST FOR 5000 HOURS OF USE. THERE IS NO WAY THAT IN THE LAST 3 YEARS WE HAVE UTILIZED 5000 HOURS OF DRIVE TIME TO WARRANT THAT THESE LED'S SHOULD BE BURNING OUT. I BELIEVE THAT THE LED'S THAT THEY ARE USING ARE DEFECTIVE AND A CASE NEEDS TO BE MADE TO SEE IF GMC IS HAVING ISSUES WITH THE REAR TAIL LIGHT LED'S, THE PARTS ARE WAY TOO EXPENSIVE TO BE FAILING AFTER A FEW YEARS OF INTERMITTENT USE. *TR

INTERMITTENTLY DEFECTIVE TAIL / BRAKE LIGHT. LED CIRCUIT BREAKS. KNOWN ISSUE. DEALER WANTS $800 TO FIX.. *TR

Mileage: 60,000

TL* THE CONTACT OWNS A 2017 GMC YUKON. THE CONTACT STATED THAT THE DRIVER'S SIDE REAR TAIL LAMPS WERE INOPERABLE. THE VEHICLE WAS TAKEN TO MANDAL BUICK GMC (11290 MANDAL PKWY, D'IBERVILLE, MS 39540). THE CONTACT WAS INFORMED THAT THE VEHICLE WAS NOT INCLUDED IN A RECALL AND ADDITIONALLY, THE VEHICLE WARRANTY WAS EXPIRED. THE DEALER QUOTED A COST OF $760 TO HAVE THE VEHICLE REPAIRED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT INFORMED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 58,000.

Mileage: 58,000

WITHOUT WARNING, RIGHT REAR TAILLIGHT STOPS WORKING. THIS IS FOR OPERATING AND STOPPING. APPARENTLY, THERE ARE MANY COMPLAINTS OF THIS...SEVERE SAFETY HAZARD FOR A KNOWN PART WITH PROBLEMS.

Mileage: 28,776

PASSENGER SIDE BRAKE AND TAIL LIGHT QUIT WORKING TOOK TO DEALERSHIP FOR REPAIR. DEALERSHIP SAID THEY HAD FIXED IT AND HAD NOT. TOOK BACK TO THEM AND THEY SAY THEY CAN'T GET ONE IT'S ON BACK ORDER. AFTER LOOKING INTO IT MYSELF IT SEEMS TO BE A VERY COMMON PROBLEM THAT GM ISN'T DOING ANYTHING TO FIX BUT PUT THE SAME LIGHTS BACK IN THAT WILL FAIL AGAIN. I'VE ASKED ABOUT AN UPDATED LIGHT THAT WOULDN'T FAIL AGAIN AND THE DEALERSHIP SEEMS TO HAVE NO KNOWLEDGE ABOUT THE LIGHTS AT ALL. GM NEEDS TO STEP UP AND FIX THE THIS ISSUE AS IT IS A SAFETY PROBLEM.

Mileage: 55,000

DRIVERS SIDE LED BRAKE LIGHT DOES NOT FUNCTION. VEHICLE HAS 52,000 MILES. KNOWN DEFECT YET GMC DOES NOT OFFER REPAIR. REQUIRES $800 LIGHT ASSEMBLY REPLACEMENT.

Mileage: 52,000

THE GMC YUKON MODELS IN ALL TRIMS, HAVE FAULTY LED STRIPS THAT CAUSE THE BRAKE LIGHTS TO FAIL ON THE LEFT, AND RIGHT BRAKE LIGHT ASSEMBLY. THE FRUSTRATING PART IS IT WORKS INTERMITTENTLY, AND WHEN IT'S OFF A SLIGHT TAP WILL MOMENTARILY BRING IT BACK ON FOR THE DURATION OF THE JOLT. THIS LEADS ME TO BELIEVE THAT IT'S FAULTY CONNECTION INSIDE THE SEALS BRAKE LIGHT ASSEMBLY. THERE ARE THOUSANDS OF COMPLAINTS ONLINE ON OWNER FORUMS OF GMC YUKON'S . THIS IS KNOWN AS THE NEW YEAR MODELS 18-19 ARE NOT HAVING THE SAME ISSUE.

DRIVERS SIDE LED BRAKE LIGHT STRIP INOP. DEALER SAYS ITS 650 PER SIDE PLUS LABOR TO REPLACE. GMC IS AWARE OF ISSUE BUT WILL NOT STAND BEHIND THERE PRODUCT. THEY ALSO LIE AND SAY IT'S THE FIRST THEY HAVE HEARD OF THIS TYPE OF FAILURE. THIS IS A SAFETY CONCERN AND CUSTOMER IS LIABLE FOR A TICKET THAT MAY RESULT FROM FAULTY GM PARTS.

Mileage: 40,000

REAR PASSENGER TAIL LIGHT FAILURE. TAIL LIGHT FAILS PREMATURELY WITHOUT ANY MEANS TO WARN DRIVER SHORT OF DIRECT OBSERVATION. PROBLEM KNOWN TO GMC GIVEN HIGH NUMBER OF FAILURES AND COMPLAINTS OF PREMATURE FAILURES. TAIL LIGHT IS EXPENSIVE TO REPLACE.

Mileage: 67,000

TAIL LIGHTS INTERMITTENTLY WORK. DEALER CLAIMS FULL TAIL LIGHT ASSEMBLY REQUIRED TO FIX (AT ~$850) AND NOT COVERED BY ANY WARRANTY. HUNDREDS OF COMPLAINTS ONLINE OF SIMILAR PROBLEM. SAFETY CONCERN BECAUSE PROBLEM IS INTERMITTENT. INDEPENDENT REPAIR SHOPS POST FIXES TO SOLUTION BY MELTING PLASTIC HOUSING AND CONNECTING METAL PIECES ON CIRCUIT BOARD ASSEMBLY THAT BREAK (THIS IS JUST A THIN METAL PLATE THAT WAS POORLY DESIGNED AND CRACKS AT A SIMILAR POINT FREQUENTLY. I THINK THIS IS A FAULTY DESIGN THAT EXPOSES MANY CUSTOMER ERA TO GREAT RISK AND SHOULD BE COVERED BY GMC. PLEASE LOOK INTO IT. CAR IS IN MOTION, STATIONARY OR TURNING WHEN HAPPENS. BRAKE LIGHTS ARE LIGHT THAT IS IMPACTED.

Mileage: 30

THE REAR PASSENGER LIGHT ASSEMBLY HAS FAILED. NO LIGHTS WITHIN THE HOUSING ARE CURRENTLY WORKING. THE UNSAFE CONDITION EXISTS WHEN THE VEHICLE IS IN MOTION, AS IT HAS NO RUNNING LIGHTS, BRAKE LIGHTS OR TURN SIGNALS. THIS APPEARS TO BE A VERY COMMON PROBLEM FOR YUKON'S OF THIS YEAR, WHICH ARE STILL FAIRLY NEW.

Mileage: 55,000

DRIVING FROM PRESCOTT, AZ TO PHOENIX, AZ WITH MY HUSBAND AND 3 YEAR OLD SON. WE WERE HEADING EAST ON SR-69 WHEN WE WERE PULLED OVER. WE WERE INFORMED THAT OUR PASSENGER SIDE BRAKE LIGHT WAS NON-OPERATIONAL. AFTER INSPECTION IT WAS FOUND THAT TURN SIGNAL AND HAZARD LIGHTS WORKED BUT NOT BREAK. A REPAIR ORDER WAS ISSUED. WE TOOK IT TO THE GMC DEALERSHIP AND WAS TOLD THE WHOLE TAIL/BRAKE LIGHT HOUSING, WIRE, AND POTENTIALLY THE FUSE NEEDED REPLACED AND THAT IT WOULD COST $700. WE WERE ALSO TOLD BY THE DEALERSHIP THAT A THEY HAVE HAD SEVERAL GMC YUKON OWNERS COME IN WITH THE SAME ISSUE AND THAT IT WAS A PART MALFUNCTION THAT MAY OR MAY NOT BE COVERED BY OUT WARRANTY.

Mileage: 62,000

2017 YUKON (ONLY BEEN IN USE FOR 19 MONTHS) DS BRAKELIGHT ASSEMBLY (RED LED OUTTER RING) STOPPED WORKING.

Mileage: 23,100

PULLED OVER BY POLICE FOR MALFUNCTIONING LHR BRAKE LIGHT. ENTIRE REAR LAMP ASSEMBLY MUST BE REPLACED SINCE IT IS AN INTEGRATED CIRCUIT BOARD WITH LED LAMPS. $700 PLUS INSTALLATION. SEVERAL VICTIMS ON-LINE DISCUSSION FORUMS.

Mileage: 34,000