2015 Gmc DENALI: complaints, problems and recalls
Explore the records behind recurring owner reports.
Key facts
18 owner complaints analyzed
0 distinct recall campaigns
56,000 mi median reported failure mileage
Scope: 2015 model year. Data snapshot: . 14 complaints include usable failure mileage.
Most common problems
Exterior Lighting is the most frequently named component, appearing in 6 of 18 complaints (33.3%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 5 | 27.8% |
| Transmission and shifting | 4 | 22.2% |
| Electrical and battery issues | 3 | 16.7% |
| Steering behavior | 3 | 16.7% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Exterior Lighting | 6 |
| Power Train | 5 |
| Electrical System | 4 |
| Service Brakes | 2 |
| Steering | 2 |
| Electronic Stability Control (Esc) | 1 |
| Engine | 1 |
| Fuel/Propulsion System | 1 |
Exterior Lighting: 6; Power Train: 5; Electrical System: 4; Service Brakes: 2; Steering: 2; Electronic Stability Control (Esc): 1; Engine: 1; Fuel/Propulsion System: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 1 |
| 25,000 to 49,999 | 4 |
| 50,000 to 74,999 | 7 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 2 |
| 150,000 and above | 0 |
Under 25,000: 1; 25,000 to 49,999: 4; 50,000 to 74,999: 7; 75,000 to 99,999: 0; 100,000 to 149,999: 2; 150,000 and above: 0
50,000 to 74,999 miles has the most reports with usable mileage (7). 4 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 5 |
| 2020 | 8 |
| 2021 | 1 |
2017: 2; 2018: 2; 2019: 5; 2020: 8; 2021: 1
Pattern summary
Exterior Lighting leads the component reports. Braking behavior appears in 5 complaint narratives. Transmission and shifting appears in 4 complaint narratives. Electrical and battery issues appears in 3 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Examples from the source records
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10978631 · 2017-04-15 (April 15, 2017)
REAR TAILLIGHTS HAVE MOISTURE IN THEM. THE MOISTURE IS CONSTANT IN ONE AND INTERMITTENT IN THE OTHER. BOTH HAVE BEEN REPLACED ONCE BY DEALER 3 MONTHS AGO. PROBLEM STILL EXISTS
Owner-reported narrative. 48,000 miles reported. Look up ODI 10978631 at NHTSA ↗
Owner report 11014368 · 2017-08-09 (August 9, 2017)
LETTER FROM SENATOR FEINSTEIN INQUIRY ON BEHALF OF CONSTITUENT IN REGARDS TO HAVING PROBLEMS WITH GMC SIERRA DENALI PICKUP 2015. *LD THE CONSUMER STATED THE VEHICLE HAS HAD MULTIPLE ISSUES WITH THE SUSPENSION, TRANSMISSION, AND ELECTRONICS. THE VEHICLE WOULD RIDE ROUGH AND THE STABILITY LIGHT WOULD ILLUMINATE. THE TRANSMISSION NEEDED TO BE REPLACED. THE ELECTRONIC DASH BLACKED OUT AND WOULD NOT FUNCTION, THE SETTIGNS SWITCHED ON THEIR OWN. THE VEHICLE DIED AND SHIFTED DANGEROUSLY. THE MANUFATURER WAS NOTIFIED. THE CONSUMER A FIX WAS UNAVAILA…
Owner-reported narrative. Look up ODI 11014368 at NHTSA ↗
Owner report 11110636 · 2018-07-10 (July 10, 2018)
RIGHT BRAKE LIGHT IS OUT
Owner-reported narrative. Look up ODI 11110636 at NHTSA ↗
Owner report 11114352 · 2018-07-29 (July 29, 2018)
BOTH LED BRAKE LIGHTS HAVE FAILED. IF YOU TAP THEM THEY WOK FOR A MINUTE BUT WHEN DRIVING THEY GO OUT AGAIN. THE SEAT VIBRATES TO ALERT YOU OF OBSTACLES BUT THE MOTOR IN THE SEAT ONLY WORK PERIODICALLY. THE REAR WINDOW WIPER HAS FAILED. THE YUKON HAS BEEN DRIVEN 3 YEARS AND 50K MI AND NOW NEEDS THOUSANDS OF DOLLARS IN REPAIRS BECAUSE OF THE DEFECTIVE PARTS USED.
Owner-reported narrative. 50,000 miles reported. Look up ODI 11114352 at NHTSA ↗
Owner report 11172670 · 2019-01-28 (January 28, 2019)
WE BOUGHT OUR 2015 DENALI 1 YEAR AGO AND HAVE APPROX 50,000 MILES AND THE PASSENGERS SIDE TAIL LIGHT IS OUT. AFTER RESEARCHING TAILLIGHT PROBLEMS FOR MY MAKE AND MODEL THIS SEEMS TO BE A VERY COMMON ISSUE. THIS SHOULD BE CONSIDERED AS A RECALL BUT WHEN LOOKED INTO, I SEE IT IS NOT. ITS A SHAME TO SPEND SO MUCH MONEY ON A VEHICLE TO HAVE THE TAIL LIGHT OUT AT 3 YEARS (AFTER FACTORY WARRANTY IS ALREADY OUT) AND YOU HAVE TO REPLACE THE WHOLE TAIL LIGHT INSTEAD OF ONE PIECE.
Owner-reported narrative. 50,000 miles reported. Look up ODI 11172670 at NHTSA ↗
Owner report 11205797 · 2019-05-06 (May 6, 2019)
BOTH BREAKLIGHTS NO LONGER WORK DUE TO FAULTY ELECTRICAL PANEL.
Owner-reported narrative. Look up ODI 11205797 at NHTSA ↗
Owner report 11207084 · 2019-05-12 (May 12, 2019)
BOTH BACK BRAKE LIGHT WORK INCONSISTANTLY. WHILE MOVING AND AT A COMPLETE STOP. LOCAL DEALERSHIP CHARGES AT MIN 1200 PER LIGHT TO FIX. SEEMS TO BE A COMMON PROBLEM WITH THE DENALI'S.
Owner-reported narrative. Look up ODI 11207084 at NHTSA ↗
Owner report 11209746 · 2019-05-24 (May 24, 2019)
THE VEHICLE WILL OFTEN SHIFT UNPREDICTABLY. MOVING FROM A DEAD-STOP, THE VEHICLE WILL SOMETIMES DEMONSTRATE SIGNIFICANT HESITATION (TO SHIFT) FOLLOWED BY A LOUD AND VIOLENT ENGAGEMENT. IN SOME INSTANCES THE VEHICLE FEELS LIKE IT HAS BEEN HIT BY ANOTHER VEHICLE. THE AUTOMOBILE WILL SHUDDER AND SLIP AND JERK WHEN IT SHIFTS BETWEEN GEARS. THE VEHICLE IS UNSAFE TO OPERATE. THE DEALER CAN NOT FIX THE ISSUE, BUT UNDERSTANDS THE VEHICLE PROBLEMS.
Owner-reported narrative. 44,415 miles reported. Look up ODI 11209746 at NHTSA ↗
Recall history
0 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.
No recall campaigns are recorded in this snapshot.