YearToAvoid

GMC Denali Best and Worst Years (2007–2015)

Among GMC Denali years with data, 2011, 2012, and 2015 are rated Avoid based on NHTSA complaints, with complaint indexes of 88, 75, and 100 respectively. No year earns a Best rating; 2013 is the top-rated year with a Good verdict and a complaint index of 38.

Based on NHTSA owner complaints and recalls per model-year, ranked within this model — not a reliability rating. Methodology.

Avoid 2011Avoid 2012Avoid 2015

Model years
9
2007–2015
NHTSA complaints
59
Recall campaigns
0
Crashes reported
1
Fires reported
0
Top problem area
Airbags

Denali Complaint Index by year

Higher = more complaints, crashes, fires, injuries, deaths and Do-Not-Drive recalls per year on the road, relative to other years of this model.

Complaint Index by model year (0 = fewest issues, 100 = most)0255075100200720082009201020112012201320142015
Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best

GMC Denali problems and recalls by year

YearVerdictIndexComplaintsCrashesFiresRecallsTop issueMPGNCAP
2007No verdict03000Airbags——
2008No verdict254000Airbags——
2009No verdict132000Airbags——
2010Caution635000Airbags——
2011Avoid8811000Airbags——
2012Avoid756000Airbags——
2013Good385000Airbags——
2014Caution505000Brakes——
2015Avoid10018100Electrical System——

Denali years to avoid: what went wrong

2015 GMC Denali Index 100 · 18 complaints · 0 recalls

The 2015 Denali has the highest complaint index of any year at 100, with 18 total complaints, one crash, and one injury reported. Electrical system problems dominate, making up 50% of complaints, including taillight moisture intrusion and repeated failures after dealer repairs. Transmission and powertrain issues account for 28% of complaints, with owners reporting rough riding, stability light activation, and transmission replacements. Median mileage at failure was 50,000 miles for electrical issues and 37,207.5 miles for transmission issues. No recalls are on file for this model year.

2011 GMC Denali Index 88 · 11 complaints · 0 recalls

The 2011 Denali carries a complaint index of 88, the second-highest of any model year. Airbags are the dominant issue, making up 45% of complaints for the year. Owners describe cracking in the dashboard near the passenger airbag compartment, with cracks spreading toward the steering wheel area over time. Several owners reported the same dashboard cracking pattern independently. The median mileage at failure was 114,239 miles. No recalls are on file for this model year, so these reports come entirely from owner complaints to NHTSA.

2012 GMC Denali Index 75 · 6 complaints · 0 recalls

The 2012 Denali has a complaint index of 75. Airbags and structure/body complaints each account for 33% of reports, with electrical system and engine issues making up the rest. As with the 2011 model, owners describe dashboard cracking around the airbag compartment, raising concerns about plastic fragments during a crash. One owner also reported tachometer surges and speed instability. Median mileage at failure for airbag complaints was 82,000 miles. No recall campaigns are recorded for this year.

Most common GMC Denali problems (all years)

Share of NHTSA complaints by component group across all model years.

  1. Other23 (39%)
  2. Airbags17 (29%)
  3. Electrical System13 (22%)
  4. Transmission & Powertrain6 (10%)
  5. Brakes5 (8%)
  6. Engine4 (7%)
  7. Structure & Body4 (7%)
  8. Fuel System3 (5%)
  9. Steering2 (3%)
  10. Suspension, Wheels & Tires1 (2%)

A complaint can list more than one component, so shares add up to more than 100%. Shares are % of complaints.

Frequently asked questions

What GMC Denali years should I avoid?
Based on NHTSA complaint data, 2011, 2012, and 2015 are rated Avoid, with complaint indexes of 88, 75, and 100 respectively. These years show elevated airbag, dashboard, and electrical system complaints compared to other Denali model years.
What is the best year for the GMC Denali?
No Denali model year earns a Best rating. The 2013 model year is the top-rated option with a Good verdict and the lowest complaint index among rated years at 38.
Does the GMC Denali have airbag problems?
Airbags are the top overall problem area for the Denali, accounting for 29% of all complaints across model years. The 2011 and 2012 model years show the most reports of dashboard cracking near the airbag compartment.
Are there recalls on the GMC Denali?
NHTSA data shows zero recall campaigns recorded across all Denali model years included in this analysis, including the 2011, 2012, and 2015 Avoid years.
What problems does the 2015 GMC Denali have?
The 2015 Denali has the highest complaint index at 100, driven mainly by electrical system issues (50% of complaints) like taillight failures and transmission problems (28% of complaints), with a reported crash and injury.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.