MYRModel Year Report

2015 GMC Denali

○ Not enough data
2015 GMC Denali
RENDERED 2026-08-02T13:29:04.940Z

Only 18 complaints on file — too few for a fair verdict.

This verdict reflects complaint volume compared to this model's typical year. Recalls and safety issues below apply regardless of the verdict — always check them.

Only 18 complaints on file — too few for a fair verdict. The data below is complete but unranked.

How is this computed?

COMPLAINTS PER YEAR

Complaints per year, GMC Denali Bar chart of distinct NHTSA complaints filed per model year, 2015 highlighted. 1999: 14 complaints 1999 2000: 21 complaints 2001: 22 complaints 2001 2002: 23 complaints 2003: 32 complaints 2003 2007: 3 complaints 2008: 4 complaints 2008 2009: 2 complaints 2010: 5 complaints 2010 2011: 11 complaints 2012: 6 complaints 2012 2013: 5 complaints 2014: 5 complaints 2014 2015: 18 complaints 2015
2015: 18 complaints
View as data table
YearComplaints
199914
200021
200122
200223
200332
20073
20084
20092
20105
201111
20126
20135
20145
201518

KNOWN PROBLEM AREAS

Only 18 complaints on file for this model year -- too few to rank by share. Raw counts only, below.

EXTERIOR LIGHTING

6 of 18 total reports mention: exterior lighting.

Show complaint excerpts

RIGHT BRAKE LIGHT IS OUT

NHTSA ODI report, 20180710

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

NHTSA ODI report, 20170415

POWER TRAIN

5 of 18 total reports mention: power train.

Show complaint excerpts

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.

NHTSA ODI report, 20170809

ELECTRICAL SYSTEM

4 of 18 total reports mention: electrical system.

Show complaint excerpts

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.

NHTSA ODI report, 20180729

STEERING

2 of 18 total reports mention: steering.

SERVICE BRAKES

2 of 18 total reports mention: service brakes.

CRASH INJURY
Show complaint excerpts

TL* THE CONTACT OWNED A 2015 GMC DENALI. THE CONTACT STATED THAT WHILE THEIR HUSBAND WAS DRIVING APPROXIMATELY 45 MPH, WHEN THE TRAFFIC CAME TO A SUDDEN STOP CAUSING THE CONTACT TO APPLY THE BRAKES TO THE VEHICLE.

NHTSA ODI report, 20201019

SAFETY TIMELINE

No recalls on file for this model year.

BUY-SMART CHECKLIST

2015 GMC Denali — pre-purchase inspection

  • Test/inspect for exterior lighting issues (6 reports on file for this year).
  • Test/inspect for power train issues (5 reports on file for this year).
  • Test/inspect for electrical system issues (4 reports on file for this year).
Inspected by ______________ Date ______________

FAQ

Is the 2015 GMC Denali reliable?

There isn't enough NHTSA complaint data on file yet to give this model year a verdict.

What are the most common problems with the 2015 GMC Denali?

The most-reported component is exterior lighting, accounting for 33% of complaints on file.

How many recalls does the 2015 GMC Denali have?

No recalls are on file for this model year.

Data updated 2026-07-11 · Complaints are unverified owner reports filed with NHTSA, not independently verified defects. Methodology.