4.5

definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
24,667 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 lights problems

lights problem

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2015 GMC Denali Owner Comments

problem #6

Jan 022019

Denali

  • miles

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

Both back brake light work inconsistantly. While moving and at a complete stop. Local dealership charges at min 1200 per light to fix. Seems to be a common problem with the Denali's.

- Lafayette, LA, USA

problem #5

May 062019

Denali

  • miles
Both breaklights no longer work due to faulty electrical panel.

- Gilmer, TX, USA

problem #4

Jan 282019

Denali

  • 50,000 miles
We bought our 2015 Denali 1 year ago and have approx 50,000 miles and the passengers side tail light is out. After researching taillight problems for my make and model this seems to be a very common issue. This should be considered as a recall but when looked into, I see it is not. Its a shame to spend so much money on a vehicle to have the tail light out at 3 years (after factory warranty is already out) and you have to replace the whole tail light instead of one piece.

- Savannah, TN, USA

problem #3

Jul 012018

Denali

  • 50,000 miles

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

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 #2

Aug 302017

Denali

  • miles
Right brake light is out

- Collins, MS, USA

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problem #1

Apr 072017

Denali

  • 48,000 miles
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

- Hessel, MI, USA

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