5.8

fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
14,529 miles

About These NHTSA Complaints:

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problem #4

Jan 022023

Sierra 2500

  • miles
I have a 2018 GMC Sierra Duramax Quad-Cab and when it is connected to either my boat, stock trailer, or cargo trailer the lights and electric trailer brakes on the trailers do not work. and the chime from the "Service Trailer Brake" indicator sounds and doesn't stop until I unplug my trailer harness from my truck making it a distraction and an unsafe situation when trying to navigate through traffic(changing lanes, stopping, and other functions needed when hauling trailers). The dealership said it was a module and specified which one and so I elected to replace it myself and it wasn't the issue. I choose to do the work myself as they quoted me a price of $700+ to repair the problem.

- Star, ID, USA

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problem #3

Apr 122020

Sierra 2500

  • 40,000 miles
Headlight shakes and flickers while driving over bumps in the road. Happens on city streets and highways. Flickering is very distracting and draws attention away from your surroundings.

- Port Byron, IL, USA

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problem #2

Oct 242018

Sierra 2500

  • 115 miles
Hid headlights shake when hitting the slightest bump in the road. GM says it's normal and refuses to try to fix.

- Rome, GA, USA

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problem #1

Oct 162018

Sierra 2500

  • 18,000 miles
Headlights shake when going over bumps in highway. Its distracting and irritating and takes your attention from the road when it happens.

- Graeagle, CA, USA

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