3.3

definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
40,000 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2015 GMC Denali electrical problems

electrical problem

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2015 GMC Denali Owner Comments

problem #4

Apr 252020

Denali 8-cyl Diesel

  • 71,000 miles

A D V E R T I S E M E N T S

Rear defroster started emitting smoke, overheated and cracked rear windshield. Please see existing recall N192220470. Although vehicle not located in Canada, can assure you this is happening in United States as well.

- Wantagh, NY, USA

problem #3

Dec 172019

Denali

  • 39,000 miles
While thankfully driving in the slow lane on the interstate in St. Louis my stability light came on the truck then slowed down on its own then went into four-wheel-drive then revved up to 6000 rpms then every service light came on on the dash when pulling to the side of the road the car then would not drive forward it stayed in neutral regardless of gearshifting it then began to cycle through all of the service request for the vehicle. After having to have the vehicle towed to the nearest dealership which was three hours away from my house they informed me the following morning the power steering control gearbox had went out and fried all the electrical's inside the vehicle. The vehicle has less than 39,000 miles after contacting GMC they told me there was nothing they could do that there was nothing on a recall list for my vehicles VIN number. After doing some research I saw that there was a recall for a very similar situation in 2018 in September. I have videos of the vehicle computer system malfunctioning if requested. I just wanted to document and file a complaint so this didn't happen to someone else and cause a serious wreck, since GMC has failed to recognize this serious of an issue.

- Marion, IL, USA

problem #2

Jul 012018

Denali

  • 50,000 miles
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.

- Syracuse, UT, USA

problem #1

Jul 012017

Denali

  • miles
Letter from senator feinstein inquiry on behalf of constituent in regards to having problems with GMC Sierra Denali pickup 2015. 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 unavailable. Updated 08/09/2017

- Gold River, CA, USA

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