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GMC Sierra 2014 and 2015 Dim Headlights Investigation

2015 GMC Sierra 2500 Truck

Do you own or lease a 2014 GMC Sierra 1500 light-duty truck or a 2015 GMC Sierra 1500, 2500, or 3500 truck? Are you finding that the headlights don’t put out enough light at night, particularly in dark areas? Have you been unable to get a real fix for this problem from General Motors (GM)?

We’re investigating the headlights on these trucks.

Apparently certain 2014 and 2015 GMC Sierra trucks are equipped with something called projector-beam headlights, which use a lens to concentrate and focus the headlight beam. But a good many drivers find that the lights are inadequate in dark, rural areas or on winding roads.

Car Talk quotes a complaint from the Car Complaints forum: “They cut out so close to the front of the vehicle you have to crawl along not to outdrive them. There is no light to the sides on corners, and if you are driving into a dip you can’t see anything on the upslope.”

GM has put out two technical service bulletins on the problem. The company told Car Talk, “There has been a TSB related the headlamp performance that has mitigated the issue for owners of ’14 and ’15 Sierras. Different headlamps were used for ’16.” The TSB recommends tweaking the truck’s computer and using different bulbs, but some are not satisfied even after this servicing.

The National Highway Traffic Safety Administration (NHTSA) website has had numerous complaints about the headlights:

  • “The headlights on these trucks are horrible.”
  • “The light points very low…”
  • “[S]uch poor illumination that it renders the vehicle undrivable at night. GM says nothing wrong.”
  • “They emit a very poor amount of light making it difficult to see at night and barely able to see at night if it is raining. I have almost been in several accidents… I have had the upgrade done by GM and that did not make these lights much better.”
  • “No accident…yet! But I have had multiple near misses, and feel it’s just a matter of time. The headlights on this vehicle are extremely inadequate even after having the recommended headlight upgrade…”

We’re investigating to see if a class action is necessary to get GM to properly address this safety issue.

If you own or lease one of these vehicles and have had problems with the inadequate headlights, fill out the form on this page and let us know what your experience was. 

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