Home · 2015 GMC Yukon Denali Xl · Complaints

What 606 owners told NHTSA about the 2015 GMC Yukon Denali Xl

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (606)Crash / fire / injury (15)Lights (313)Electrical system (94)Brakes (92)Transmission & drivetrain (58)Steering (37)Engine (33)Suspension (17)Body & structure (16)Fuel system (14)Visibility & wipers (8)

Newest first · 606 complaints · page 20 of 25

Jul 3, 2018Transmission & drivetrainEngine

TL* THE CONTACT OWNS A 2015 GMC YUKON. WHILE AT A TRAFFIC LIGHT OR STOP SIGN WITH THE BRAKE PEDAL ENGAGED, THE VEHICLE WOULD SHAKE AND IDLE HIGHLY. THE FAILURE WAS EXPERIENCED NUMEROUS TIMES. THE VEHICLE WAS TAKEN TO DICK NORRIS BUICK GMC CLEARWATER (18200 US HWY 19 NORTH, CLEARWATER, FL, (727-536-1967) AND THE MOTOR MOUNTS WERE REPLACED THREE TIMES, BUT THE FAILURE PERSISTED. THE VEHICLE WAS TAKEN BACK TO THE DEALER SEVERAL TIMES AND THE MOTOR MOUNTS WERE ADJUSTED AND THE TRANSMISSION MOUNTS WERE REPLACED; HOWEVER, THE VEHICLE CONTINUED TO IDLE HIGHLY AND SHAKE WHILE STOPPED. THE MANUFACTURER WAS NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 19,000. *TT

NHTSA ODI 11105283

Jul 3, 2018Lights

TL* THE CONTACT OWNS A 2015 GMC YUKON. WHILE DRIVING AT AN UNKNOWN SPEED, THE BRAKE LIGHTS FAILED TO ILLUMINATE. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE BRAKE LIGHT ASSEMBLY FAILED AND NEEDED REPLACEMENT. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 54,000. THE VIN WAS NOT AVAILABLE.

NHTSA ODI 11105384

Jul 3, 2018Seat belts

TL* THE CONTACT OWNS A 2015 GMC YUKON. THE CONTACT STATED THAT THE PASSENGER SIDE SEAT BELT LATCH DETACHED INDEPENDENTLY. THE FAILURE OCCURRED WITHOUT WARNING. THE VEHICLE WAS TAKEN TO DUBLIN GMC (4400 JOHN MONEGO CT, DUBLIN, CA) WHERE IT WAS DIAGNOSED THAT THE SEAT BELT LATCHING SYSTEM WAS JAMMED DUE TO AN OBJECT. UPON INSPECTION, THE CONTACT DID NOT SEE ANYTHING INSIDE OF THE BUCKLE. THE VEHICLE WAS REPAIRED, BUT THE FAILURE RECURRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 93,000.

NHTSA ODI 11105403

Jul 2, 2018Electrical systemLights

REAR TAIL LIGHT NOT WORKING

NHTSA ODI 11105030

Jun 30, 2018Lights

WHEN THE CAR IS TURNED ON, THE PASSENGER TAIL LIGHT ASSEMBLY IS MALFUNCTIONING AND INCONSISTENTLY WORK, BUT THE TURN SIGNAL AND BRAKE LIGHTS ARE WORKING IN THE SAME ASSEMBLY.

NHTSA ODI 11104872

Jun 23, 2018Lights

RIGHT BRAKE LIGHT NO LONGER WORKS. UNABLE TO REPLACE BULB AND HAVE TO SPEND 775 ON A NEW LIGHT HOUSING SINCE THESE ARE NOT SERVICEABLE LIGHTS

NHTSA ODI 11103590

Jun 22, 2018Lights

BRAKE LIGHTS WORKING INTERMITTENTLY. OCCASIONALLY EITHER THE RIGHT OR LEFT WILL NOT LIGHT UP. NOT REPEATABLE OR CONSISTENT AND DEALER NOTES NO SERVICE BULLETINS OR CODES.

NHTSA ODI 11103354

Jun 22, 2018Lights

THE REAR LED BRAKE LIGHTS ARE INTERMITTENTLY NOT WORKING. IT APPEARS TO BE A BAD CONNECTION OR FAULTY LIGHT BOARD INSIDE THE HOUSING. WHEN THE TEMPERATURE GETS HOT, THE BRAKE LIGHTS STOP WORKING. IT CAN HAPPEN AT ANY TIME, WHEN DRIVING OR PARKED. NOT HAVING BREAK LIGHTS ON A VEHICLE IS EXTREMELY DANGEROUS. THERE IS NOT A WAY TO CHANGE THE BULBS OR BOARD WITHOUT CHANGING THE ENTIRE LIGHT HOUSING. AFTER A QUICK GOOGLE SEARCH, THIS IS A SERIOUS SAFETY PROBLEM AFFECTING A HUGE NUMBER OF PEOPLE WITH THE SAME EXACT ISSUE. THOUSANDS OF PEOPLE ARE EXPERIENCING THE SAME PROBLEM AND IT APPEARS TO BE A MANUFACTURING KNOWN ISSUE THAT THE DEARLERAHIPS ARE CASHING IN ON.

NHTSA ODI 11103392

Jun 22, 2018Lights

BRAKE LIGHT BURNT OUT REQUIRING THE ENTIRE TAIL LIGHT LENS TO BE REPLACED AT A SUBSTANTIAL AND EXCESSIVE COST OVER $800 FOR PARTS AND LABOR. VEHICLE MILEAGE UNDER 36,000 MILES.

NHTSA ODI 11103423

Jun 22, 2018Lights

TL* THE CONTACT OWNS A 2015 GMC YUKON. WHILE DRIVING VARIOUS SPEEDS OR WHILE THE VEHICLE WAS STATIONARY, THE BRAKE LIGHTS FAILED TO ILLUMINATE WHEN THE BRAKE PEDAL WAS DEPRESSED. THE FAILURE OCCURRED ON SEVERAL OCCASIONS. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO ALLEN CADILLAC GMC (28332 CAMINO CAPISTRANO, LAGUNA NIGUEL, CA 92677, (949) 485-3700) WHERE IT WAS DIAGNOSED THAT THE LED CIRCUIT PANEL WAS FAILING AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 30,800.

NHTSA ODI 11103466

Jun 21, 2018Lights

LED CIRCUIT BOARD FAIL. DEALERSHIP WILL FIX FOR OVER $2000 WITH THE OLD FAULTY PARTS INSTEAD OF THE NEW PARTS. HUNDREDS OF PEOPLE HAVE HAD THIS SAME ISSUE AND IT NEEDS TO BE ADDRESSED.

NHTSA ODI 11103095

Jun 19, 2018Lights

HEADLIGHT HAS WATER CONDENSATION IN IT AND DEALERSHIP SAYS IT'S A SEALED UNIT SO THE WHOLE HEADLIGHT NEEDS REPLACED AND IF IT HAPPENED TO THE PASSENGER SIDE IT'S MOST LIKELY GOING TO HAPPEN TO THE DRIVER SIDE 1 HEADLIGHT COST $1,200 TO REPLACE AND LABOR IF GMC KNOWS THIS IS A PROBLEM WITH THE 2015 YUKONS HOW COME SOMETHING IS NOT BEING DONE ABOUT IT BECAUSE $1,200 IS NOT A SMALL AMOUNT OF MONEY!

NHTSA ODI 11102581

Jun 18, 2018Lights

RIGHT REAR TAILLIGHT WORKS INTERMITTENTLY. IT IS AN LED ASSEMBLY, NO BULBS CAN BE REPLACED. ONLY WAY TO REPAIR IS TO REPLACE TOTAL ASSEMBLY AT COST OD WELL OVER $650.00. THIS IS A DESIGN OR PRODUCT FLAW THAT GM IS AWARE OF AND SHOULD BE REPLACE UNDER WARRANTY. THEY DENY THERE IS A PROBLEM.

NHTSA ODI 11102453

Jun 15, 2018Electrical system

TAIL LIGHT LED STOPPED WORKING. CONNECTION FAILED

NHTSA ODI 11102192

Jun 14, 2018Lights

LED TAILLIGHT IS ALREADY OUT - SHOULD LAST FOR 10+ YEARS, CAR IS OUT OF WARRANTY, DEALER CHARGES $750 TO REPLACE AND CAN'T GUARANTEE IT WON'T HAPPEN AGAIN. DEALER CAN'T EXPLAIN WHY THE LIGHT IS OUT, SAYS IT JUST HAPPENS

NHTSA ODI 11101771

Jun 14, 2018Steering

STEERING WHEEL CREATES A LOCKING/POPPING/CLICKING NOISE WHILE MAKING TURNS. THIS IS CAUSED BY A LOOSENING OF THE BOLT WHICH MAY AFFECT THE WHEEL BEARINGS CREATING A POTENTIALLY DANGEROUS SITUATION. THIS NEEDS TO BE ADDRESSED BEFORE SOMETHING SERIOUS HAPPENS. THE CONDITION OCCURS WHENEVER THE STEERING WHEEL IS TURNED TO THE LEFT OR RIGHT, FROM 0-35 MPH.

NHTSA ODI 11101793

Jun 11, 2018Lights

REAR BLACK LIGHTS FAIL... KNOWN ISSUE... ONLY FIX IS $750... GMC KNOWS IT IS AN ISSUE AND HASN'T DONE A RECALL... MOST CARS YOUR TAIL LIGHT GOES OUT $10 TO FIX... GMC $750

NHTSA ODI 11101106

Jun 6, 2018Lights

BRAKE LIGHT STOPPED WORKING, GMC WANTS TO REPLACE THE WHOLE ASSEMBLY FOR $800. MY WARRANTY HAS EXPIRED BUT I THINK GMC SHOULD HAVE AWAY TO REPAIR THE LIGHT INSTEAD OF REPLACING THE WHOLE ASSEMBLY. A RECALL ON THIS SHADY WAY OF GETTING THE CONSUMER HARD EARNED MONEY. BECAUSE IT SHOULD LAST LONGER. I CAN'T DRIVE MY CAR IN FEAR OF GETTING A TICKET. PLEASE HELP

NHTSA ODI 11100120

Jun 5, 2018Lights

2015 BRAKE LIGHT WORKS INTERMITTENTLY

NHTSA ODI 11100001

Jun 5, 2018Lights

DRIVER SIDE TAIL LIGHT QUIT WORKING

NHTSA ODI 11100033

Jun 4, 2018Lights

DRIVER'S SIDE LED BRAKE LIGHTS INTERMITTENTLY WORKING, THEN COMPLETELY FAILED.

NHTSA ODI 11099473

Jun 3, 2018Lights

DRIVER SIDE TAIL LIGHT AND BREAK LIGHT DOES NOT WORK INTERMITTENTLY. UNDER 32K MILES. DEALER DOES NOT COVER AS THERE IS NO RECALL.

NHTSA ODI 11099413

Jun 3, 2018Lights

LED BRAKE LIGHT IS FAULTY. DEALERSHIP WANTS OVER $800 FOR REPAIR OF SINGLE LIGHT. SEEMS TO BE A KNOWN PROBLEM FOR THIS MAKE AND MODEL.

NHTSA ODI 11099426

Jun 1, 2018Lights

THE VEHICLE HAS UNDER 40,000 MILES AND THE BRAKE LIGHTS HAVE FAILED. THESE ARE LED TYPE BRAKE LIGHTS SO THEY SHOULD LAST MUCH LONGER. YOU CAN NOT REPLACE THE INDIVIDUAL BULBS. YOU MUST REPLACE THE WHOLE TAIL LIGHT ASSEMBLY AT THE COST OF $750 EACH. A WARNING ON THE DASH NEVER APPEARED TO NOTIFY ME THAT THE BRAKE LIGHT WAS NOT FUNCTIONING.

NHTSA ODI 11099252

May 31, 2018Electrical systemBody & structureBrakes

TL* THE CONTACT OWNS A 2015 GMC YUKON DENALI. WHILE THE VEHICLE WAS STATIONARY, WATER ENTERED THE CABIN OF THE VEHICLE THROUGH THE HIGH FREQUENCY ANTENNA SEAL. IN ADDITION, THE CONTACT STATED THAT THE COMPUTER SYSTEM HAD AN ELECTRICAL MALFUNCTION AND THE VEHICLE'S BRAKES ENGAGED WITHOUT WARNING. DIXIE BUICK GMC IN FORT MYERS, FLORIDA WAS MADE AWARE OF THE FAILURE AND DIAGNOSED THAT THE HIGH FREQUENCY ANTENNA NEEDED TO BE REPLACED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 76,000. THE VIN WAS NOT AVAILABLE.

NHTSA ODI 11099074

← NewerOlder →

Working with the data? Download all 606 complaints as CSV · fetched from NHTSA July 23, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2015 GMC Yukon Denali Xl verdict →