2017 GMC YUKON XL Exterior Lighting Problems

At stop light vehicle began to sputter and make noise, I was very close to my home, no engine light on. Upon turning vehicle off and using a code reader codes P0106 and P0506 was on scanner. I had vehicle towed to Complete Car Care. Mis fire on multiple cylinders. Vehicle has 69,801 miles. 3 push rods bent and I valve spring broken. The right Cylinder head assembly had to be removed and replaced with 8 new push rods, 8 new lifters, gaskets, seals, and valve spring. Cost was $3304.79. In addition the rear tail light has been sporadic on and off, GM was to replace up to 70,000 miles. When I took it to them they stated the time limit had expired, yet I had not been informed until I did a google search. GM requesting $475 plus tax. I am concerned my vehicle has the same manufacturing defects as the GM motors being recalled with total engine failures.

At stop light vehicle began to sputter, run rough, and make noise. I was less than a mile from my home, no check engine light on. I turned the vehicle off, used a scanner to have codes P0106 and P0506 show. I had vehicle towed to Complete Car Care. Misfire on multiple cylinders, 3 push rods bent, one valve spring broken. The right Cylinder head assembly had to be removed and replaced with 8 new push rods, 8 new lifters, gaskets, seals, and valve spring. Total cost $3304.79, the vehicle only has 69,801 miles on it. In addition one of the rear tail lights has a known issue (found out on google), intermittently goes out, was never notified. I took the car to Jim Hudson GMC to be told it would cost $475 plus tax because I did not come in early enough even though it is to be warranted up to 70,000 miles. I am greatly concerned that this engine has the same manufacturing defects of the current recall and extended recall for the GMC Yukon Denali engines.

I was stopped at a traffic light and was informed by another driver that my right tail lamp was not working. There were no warning lights indicating that there was a problem. When I arrived home, it began working after I tapped on it. A few days later, the left tail lamp stopped working. I began to realize that both tail lamps were only working intermittently. Upon inspection by the mechanic, I was informed that this is a common problem with my vehicle and that each replacement part is approximately $900, totaling nearly $2,000 to replace both lamps. This is an obvious safety hazard for myself and for others who may not be able to judge when I am stopping, especially if I have to stop suddenly.

drivers side tail light flickering and sometimes not working a $900+ cost! I issue with right hand side when suv has 32k miles, seems like this is an ongoing issue, luckily it was still under warranty the 1st time. The AC condenser when out in April, also an know issue with the Yukon, they wanted to charge me $1500 to repair, I was able to find someone to do it for around $600, now the outlet and usb ports seem to not work. I also had an issue with the braking system , dealer couldn't figure it out, I finally found someone to repair it, $500 fix. For what I paid for the Yukon, you would think they would use top of the line parts!

In july 2021 the passenger side tail light stopped working. A certified GMC dealer replaced both tail lights. In Feb 2024 the driver side tail light failed.

Passenger brake light assembly issues

Driving towards the bank and suddenly the truck turned off … no warning nothing it turned off while operating .

One rear brake light was intermittently malfunctioning even though the vehicle only has 80,000 miles and is a 2017 model. Upon researching online, I saw that 2015 and 2016 models were recalled for this. 2017 was given a limited term to have the vehicle fixed IF they were experiencing the issue. I was not experiencing the issue at the time, so I was responsible for a large chunk of the cost of repairing the light through the dealer at GMC. GMC did inspect the vehicle. The company was made aware of the problem. The dealer discussed it with them and they agreed to pay half as a "favor" basically to have the rear light replaced.

Brake lights intermittently don't work.

My driver side tail light is not working. The passenger side tail light flickers in and out.

Rear brake light has stopped working. GMC dealer quotes $990 to replace one tail light assembly. It appears to be a common problem caused by a weak conductor that breaks inside the assembly. Because of the high price quoted by dealerships, people are resorting to fixing it themselves, like in this video: https://www.youtube.com/watch?v=NxluJqB0gWU This is dangerous. This part should not be breaking so quickly. It should not be allowed that fixing brake light be so expensive by the manufacturer.

Running lights on rear keep failing. This is a known issue with these models.

Just driving along yesterday in my Yukon, and when I stopped another driver pulled up to me and informed me my right rear brake light is not working. Upon further investigation, it comes in and out (sometimes it works sometimes it does not). I had this same issue with my 2015 Yukon, I would have thought GM would have this fixed by now, very expensive fix on my 2015, assuming it’s the same cost or close. Very dangerous to have a brake light out and reduce another drivers reaction time to stop and prevent a rear end collision. Furthermore the vehicle has no indication that a light or bulb is out, a lot of vehicles have that programming, surprisingly this does not.

Taillights and brake lights inoperative. GMC knows of problem and refuses to repair vehicle outside of manufacturer warranty (lights failed after warranty period). I have seen SEVERAL other Yukons on the road with NO brake lights or tail lights. Extremely dangerous situation.

Rear LED brake light stopped working. Supposed to have a vehicle lifetime lifespan. i.e. never require replacing. This light assembly was found to be defective in the previous year model and not fixed.

Passenger rear tail lamp/brake lamp failure. This is a known issue with GMC Yukon vehicles MY 2015-2019 with LED tail lamps. Metal within the lamp vibrates loose and cause the brake lamp to fail - thus resulting in no BRAKE Lamps illuminating at braking. This would be the second time this issue has occurred in 4 months, with the previous repair occurring rear drivers side and logged with NHTSA for this issue under 11436519. Opening this case as now the other side (passenger failed) with the EXACT same issue.

LED Taillight failure REAR DRIVERS SIDE. This seems to be a common occurance amongst GMC Yukon Denali XL, where the circuit housing for the LED board begins failure with fissure within the electrical contact points. The fissure soon erupts causing a shunt within the LED semiconductor and causing the brake lights to cease functioning.

Brake lights are going out due to cracking in the LED strip. Slight jars to lights will make them work for a short time.

1) LED tail-lights fail intermittently - this is a known problem GM does not proactively address unless customers complain repeatedly. Puts driver and passenger in danger. this began happening at 25K miles. 2) AC condenser fails - GM will not address as part of a broader recall despite extensive late model customer complaints. This put passengers in danger on any road trip across desert terrain. GM has been unresponsive despite numerous calls asking for resolution. This occurred at 36k miles. 3) Electrical failings - numerous electrical failings - from entertainment system (at 10k miles), starter motor and internal lighting - all failing at 36k miles. NHTSA must take a look at these manufacturing defects - they are putting customers at risk!

led lights are malfunctioning on my 2017 Yukon xl. causing my brake lights to flicker and then go out completely. I've been pulled over and almost hit from behind due to these lights not working correctly. they have to be replaced by completely removing and replacing the entire light fixture for the high cost of 800+. they are not built to be fixed, just replaced. What's worse is that replacing them only buys you a little time before those again go out. its unsafe and puts my family at risk daily.

The brake lights fail. First the left light failed, and two days later the right light failed. After researching, this is a common problem with GM and these models. The fix is not just a bulb- the whole rear light assemblies (each side) needs replacing with GM price quotes of $900 a side. We were over 1000 miles away from home.

The contact owns a 2017 GMC Yukon XL. The contact stated while driving at various speeds, the contact noticed that the passenger rear tail light was inoperable. The contact stated no warning light was illuminated. The vehicle was taken to the local dealer where it was diagnosed with the tail light unit needing to be replaced. The vehicle was not repaired. The contact was relating the failure to an unknown recall. The manufacturer had not been informed of the failure. The failure mileage was approximately 106,632.

Mileage: 106,632

Passenger side brake light goes in and out and often time stays out. I have read about numerous other people dealing with same issue as it is a manufacturing/quality issue. This is very dangerous. GMG apparently puts the same faulty brake parts back in car while under warranty then when the issue arises again when not in warranty sell customers a pricey part that actually works. Again, very unsafe and terrible business practice as well.

BRAKE LIGHTS WORK INTERMITTENTLY. VERY DANGEROUS! PASSENGER SIDE BRAKE LIGHT, STOPPED WORKING COMPLETELY, THEN CAME BACK ON.

Mileage: 80,000

INTERMITTENT FAILURE OF ONE BRAKE LIGHT WHILE MOVING. VEHICLE HAS ONLY 38000 MILES. THIS APPEARS TO BE A COMMON COMPLAINT (JUDGING BY CAR FORUMS). I UNDERSTAND GMC MAKES AN IMPROVED VERSION OF THIS ASSEMBLY. GIVEN THE POTENTIAL SAFETY ISSUE, THIS SHOULD BE A RECALL.

Mileage: 38,000

PASSENGER BRAKE LIGHT IS INTERMITTENT. CLEARLY ISSUE WITH THE INTERNAL ASSEMBLY.

Mileage: 96,000

RIGHT READ TAIL LIGHT, BRAKE LIGHT AND REVERSE LIGHT STOPPED WORKING AT 61,135 MILES ON ODOMETER READING FOR NO APPARENT REASON.

TAILLIGHT FAILURE: THE FAILURE OF LED LIGHT IS A DIRECT RESULT OF THE ALLOY BASE CIRCUIT USED TO MAINTAIN CONTINUITY. THE ALLOY'S INABILITY TO EXPAND AND CONTRACT DUE TO THE CURRENT DESIGN, CAUSES FAILURE OF THE PRODUCT. EVIDENT BY THE VIDEOS OF REPAIRS ONLINE. THE ALLOY IS BREAKING, INTERRUPTING THE CURRENT FROM MAINTAINING CONTINUITY RESULTING IN FAILURE. THIS IS A MANUFACTURING DEFECT WHERE THE PRODUCT SHOULD HAVE HAD EXPANSION AND CONTRACTION POINTS ON SUCH A PART TO PREVENT PREMATURE FAILURE. THE LIGHT IS NONREPAIRABLE WITHOUT BREACHING THE PERMANENTLY SEALED SHELL.

Mileage: 70,000

REAR PASSENGERS BRAKE LIGHT FLICKERS OFF AND ON CAUSING A SAFETY RISK WHILE DRIVING. PREVIOUS YEARS OF SAME MAKE AND MODEL ARE HAVING SAME ISSUES CAUSING A SHORTAGE IN $400-800 REPLACEMENT OF TAIL LIGHT ASSEMBLY. RATHER, GMC SHOULD RECALL AND CORRECT THE ORIGINAL MANUFACTURING QUALITY TO BEGIN WITH.

Mileage: 55,000

BACK PASSENGER SIDE BRAKE LIGHTING WENT OUT. ORIGINALLY IT WOULD WORK SOMETIMES AND NOT WORK OTHERS. NOT IT NEVER WORKS... DEALER SAID EARLIER YEARS WERE COVERED BY RECALL BUT NOT 2017. VERY EXPENSIVE TO REPLACE AND IVE HAD THE CAR 2 YEARS. CRAZY.

REAR PASSENGER LED BRAKE LIGHT FAILURE. DEALER SAID THIS IS A KNOWN FAILURE ITEM SO MUCH SO THAT PARTS ARE ON BACKORDER NATION WIDE.

Mileage: 23,600

TL* THE CONTACT OWNS A 2017 GMC YUKON XL. THE CONTACT STATED THAT THE BRAKE LIGHTS FAILED TO ILLUMINATE INTERMITTENTLY. THE CONTACT TOOK THE VEHICLE TO MARVIN K BROWN AUTO CENTER (LOCATED AT 1441 CAMINO DEL RIO S, SAN DIEGO, CA, 619-272-6867) WHERE IT WAS DIAGNOSED THAT THE BRAKE LIGHTS NEEDED TO BE REPLACED. HOWEVER, DUE TO THE COMMONALITY OF THE FAILURE, THE PARTS WERE ON BACKORDER. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 64,000.

Mileage: 64,000

RIGHT REAR TAILLIGHTS STOPPED WORKING. UNIT IS SEALED AND WHOLE ASSEMBLY MUST BE REPLACED, AT GREAT EXPENSE. THIS APPEARS TO BE A COMMON PROBLEM BUT GM WILL NOT FIX.

Mileage: 61,100

TL* THE CONTACT OWNS A 2017 GMC YUKON XL. WHILE DRIVING VARIOUS SPEEDS, THE CONTACT NOTICED THAT THE REAR BRAKE LIGHTS STOPPED WORKING WITHOUT WARNING. THE VEHICLE WAS TAKEN TO MIDLAND BUICK GMC (3205 W WALL ST, MIDLAND, TX 79701, (432) 897-0665) WHERE IT WAS DIAGNOSED THAT THE LED BRAKE SYSTEM NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED AND THE FAILURE RECURRED MULTIPLE TIMES. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND INFORMED THE CONTACT THAT THE VIN WAS NOT INCLUDED IN A RECALL. THE CONTACT WAS ADVISED TO CALL NHTSA TO FILE A COMPLAINT. THE FAILURE MILEAGE WAS APPROXIMATELY 49,000.

Mileage: 49,000

RIGHT TAIL/BRAKE LIGHT HAS INTERMEDIATE PROBLEM. ADVISED DEALERSHIP, THEY HIT THE LIGHT WITH HAND AND IT FLASHED. GMC IS AWARE THAT THIS IS A PROBLEM. NO DETECTION FROM ANY OF THE SENSORS ADVISING THERE IS A PROBLEM WITH THE TAIL/BRAKE LIGHT. THIS IS OBVIOUSLY AN ISSUE WITH GMC YUKONS WHEREIN THERE IS A BROKEN WIRE IN THE LIGHT ITSELF AND IT IS A FULL UNIT THAT COST APPROXIMATELY $650.00. PRINCE DEALERSHIP DID NOT EVEN ADVISE THAT THERE IS A RECALL ON MY VEHICLE AT THE TIME OF CHECKING THE TAIL/BRAKE LIGHT WAS WARRANTED.

Mileage: 53,996

BRAKE LIGHTS ARE GOING OUT WITHOUT NOTICE

Mileage: 52,000

THE LED REAR BRAKE LIGHTS ARE CONSISTENTLY FAILING ON THOUSANDS OF THESE VEHICLES. DEALER TOLD ME THEY ARE ON BACK ORDER AND ARE UNAVAILABLE AS THEY CAN'T KEEP UP WITH DEMAND. WITHOUT A FIX, HOW CAN I SAFELY DRIVE THE CAR? I HAVE ONE OUT, IF THE OTHER GOES OUT, WHAT IS THE SOLUTION?

THE WHOLE BACK TAIL LIGHT HAD TO BE REPLACED AFTER FAILING. POOR DESIGN AND A COMMON PROBLEM ON THE 2015-2017 GMC YUKONS. THERE IS A COMMON AREA THAT BREAKS. NOT ONLY A BIG EXPENSE BUT ALSO A LARGE WASTE OF MATERIAL CONSIDERING THE WHOLE UNIT HAS TO BE REPLACED. COST IS OVER $800.00 AND THE DEALER BUYS BACK THE OLD LIGHT FOR $50 SEEMS A BIT SUSPICIOUS BY GMC. THESE LAMPS ARE A SEALED UNIT AND WERE NEVER DESIGNED TO BE REPAIRED. AS DESIGNED, IF THERE IS A PROBLEM, THE LAMP IS REPLACED AS A COMPLETE AND VERY EXPENSIVE UNIT. MORE CAN BE FOUND HERE: HTTPS://WWW.CARCOMPLAINTS.COM/GMC/YUKON/2015/LIGHTS/TAILLIGHT_NOT_WORKING_PROPERLY.SHTML