Question 1

Is the Gmc SIERRA DENALI reliable?

Accepted Answer

The Gmc SIERRA DENALI has 259 total NHTSA complaints across 11 model years. The most reliable years are 2020 (10 complaints), 2013 (10 complaints), 2010 (12 complaints). Years to avoid: 2019 (46 complaints), 2016 (42 complaints), 2011 (40 complaints).

Question 2

What years of the Gmc SIERRA DENALI should I avoid?

Accepted Answer

Avoid the 2019, 2016, 2011 Gmc SIERRA DENALI. The 2019 model has the most complaints (46) with the top issue being BRAKES.

Question 3

What is the best year for the Gmc SIERRA DENALI?

Accepted Answer

The best years for the Gmc SIERRA DENALI are 2020 (10 complaints), 2013 (10 complaints), 2010 (12 complaints). These years have the fewest reported issues to NHTSA.

Year	Complaints	Top Issue	Verdict
2020	10	I NOTICED SEVERAL SPOTS OF OIL ON MY DRIVEWAY, I T...	Excellent Reliability
2019	46	THE VEHICLE WAS IN FOR REPLACEMENT BACK UP CAMERA ...	Below Average
2018	26	TL* THE CONTACT OWNS A 2018 GMC SIERRA DENALI. THE...	Average
2017	15	ABOVE 35MPH I BEGIN TO GET AN EXTREME SHAKE AND VI...	Above Average
2016	42	THIS ISSUE STARTED A FEW MONTHS AFTER I PURCHASED ...	Below Average
2015	24	HARD BRAKE PEDAL. AT LOW SPEED THE BRAKE PEDAL GET...	Average
2014	19	MY TRUCK IS SHAKING AT SPEEDS 65+MPH. I RECENTLY H...	Above Average
2013	10	I HAVE A 2013 GMC SIERRA DENALI. THE DASHBOARD BY ...	Excellent Reliability
2012	15	LOSS OF STEERING CONTROL (THREE EPISODES) : 13 ...	Above Average
2011	40	ON JULY 29, 2015, WHILE DRIVING AT APPROXIMATELY 4...	Below Average
2010	12	THE ENTIRE DASHBOARD HAS STARTED CRACKING. *TR...	Excellent Reliability

Gmc SIERRA DENALI — All Years

Gmc SIERRA DENALI — NHTSA Complaints by Year

Best Years to Buy

Years to Avoid