2018 GMC Sierra Denali

○ Not enough data
2018 GMC Sierra Denali
RENDERED 2026-11-01T12:51:39.549Z

Only 17 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 17 complaints on file — too few for a fair verdict. The data below is complete but unranked.

Complaints
17

Too few to rank

Recalls
0

None on file

Investigations
0

None on file

Top problem
—

Not enough data

Complaints per year

2002: 13 complaints 2002 2004: 11 complaints 2005: 4 complaints 2006: 5 complaints 2006 2007: 1 complaint 2008: 18 complaints 2009: 7 complaints 2009 2010: 10 complaints 2011: 28 complaints 2012: 10 complaints 2012 2013: 8 complaints 2014: 14 complaints 2015: 22 complaints 2015 2016: 30 complaints 2017: 14 complaints 2018: 17 complaints 2018 17 2019: 26 complaints 2020: 9 complaints
2002: 13 complaints 2002 2004: 11 complaints 2005: 4 complaints 2005 2006: 5 complaints 2007: 1 complaint 2007 2008: 18 complaints 2009: 7 complaints 2009 2010: 10 complaints 2011: 28 complaints 2011 2012: 10 complaints 2013: 8 complaints 2013 2014: 14 complaints 2015: 22 complaints 2015 2016: 30 complaints 2017: 14 complaints 2018: 17 complaints 2018 17 2019: 26 complaints 2020: 9 complaints
2002: 13 complaints 2002 2004: 11 complaints 2004 2005: 4 complaints 2005 2006: 5 complaints 2006 2007: 1 complaint 2007 2008: 18 complaints 2008 2009: 7 complaints 2009 2010: 10 complaints 2010 2011: 28 complaints 2011 2012: 10 complaints 2012 2013: 8 complaints 2013 2014: 14 complaints 2014 2015: 22 complaints 2015 2016: 30 complaints 2016 2017: 14 complaints 2017 2018: 17 complaints 2018 17 2019: 26 complaints 2019 2020: 9 complaints 2020

2018: 17 complaints

View as data table
YearComplaints
200213
200411
20054
20065
20071
200818
20097
201010
201128
201210
20138
201414
201522
201630
201714
201817
201926
20209

Known problem areas

Only 17 complaints on file for this model year — too few to rank by share. Raw counts only, below.

Engine

5 of 17 total reports mention: engine.

Show complaint excerpts

The contact owns a 2018 GMC Sierra 1500 Denali. The contact stated that while driving at an undisclosed speed, and while the vehicle was parked, the running boards unexpectedly lowered.

NHTSA ODI report, 2026-03-11

Also filed under Structure

Service brakes

4 of 17 total reports mention: service brakes.

INJURY
Show complaint excerpts

I nearly died when my brakes failed on my 2018 GMC denali this morning. I was only going 60 MPH when another driver cut in front of me, and hit their brakes but when I tried to stop, I could not!

NHTSA ODI report, 2020-10-26

Also filed under Steering and electronic stability control (esc)

Structure

4 of 17 total reports mention: structure, most commonly citing body.

Steering

3 of 17 total reports mention: steering.

INJURY

Exterior lighting

3 of 17 total reports mention: exterior lighting, most commonly citing headlights.

Safety timeline

No recalls on file for this model year.

0 recalls · 0 investigations · oldest first

To check one car, enter its VIN on the NHTSA recall page. Check a VIN →

Buy-smart checklist

2018 GMC Sierra Denali — pre-purchase inspection

Inspect

  • Engine: 5 reports on file for this year.
  • Service brakes: 4 reports on file for this year.
  • Structure: 4 reports on file for this year.

FAQ

Is the 2018 GMC Sierra 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 2018 GMC Sierra Denali?
The most-reported component is engine, accounting for 29% of complaints on file.
How many recalls does the 2018 GMC Sierra Denali have?
No recalls are on file for this model year.

Data updated 2026-11-01 · Complaints are unverified owner reports filed with NHTSA, not independently verified defects. Methodology.