GMC Lights Problems

Lights issues make up roughly 9% of all GMC owner complaints. The majority of the issues have been reported by Sierra 1500 owners.

The complaint we hear about most often is terrible headlights, poor visibility in the 2014 Sierra 1500.

Common GMC Lights Problems

  1. Sudden Low Beam Headlight Failure

    The 1st generation Envoy and Envoy XL have low beam headlights can suddenly shut off even though the lights themselves are perfectly fine. The issue is a a defective headlamp driver module which is responsible for distributing power to the …

    Continue reading article "Sudden Low Beam Headlight Failure" An open fuse block with the bad module circled in red

Where Lights Complaints Happen

Sometimes it helps just to tally up the complaints and see where the biggest stacks are. Use this information to learn about troublespots or to run for the hills.

Worst Issues

Worst Models

Recent Lights News

There's a lot of news out there, but not all of it matters. We try to boil down it to the most important bits about things that actually help you with your car problem. Interested in getting these stories in an email? Signup for free email alerts over at CarComplaints.com.

  1. A lawsuit regarding the GMC Sierra’s “inadequate” headlights is still burning bright in a California court.

    The plaintiffs allege GM made changes in the bulbs, assemblies and operation of the headlights … GM allegedly changed to projector-style headlights with single bulbs, smaller reflectors, two lenses each and shutters to switch between high and low beams that work from a single voltage source.

    The lawsuit was filed back in 2015 after owners started questioning GM’s headlight redesign for the 2014 and 2015 model years.

    Look – if you saw one of these trucks driving in the oncoming lane at night, I wouldn’t blame you if you confused it for a pair of mopeds with weak batteries. It’s that bad.

    keep reading article "The Sierra’s Dim Headlights Are Under a Spotlight"

  2. GM isn't arguing against claims that the 2014-2015 GMC Sierra has some terrible headlights

    , just that the lawsuits against them don't prove it. GM argues truck owners don't allege the lights malfunction in any way, so the case should be dismissed because other lawsuits have been dismissed because of similar claims.

    The plaintiffs are worried ineffective lights will lead to more nighttime crashes, but GM says they have no data to back it up. If the automaker actually needs data for that, then I'm not sure which is dimmer --- the headlights or GM itself.

    keep reading article "GM Wants Sierra Headlight Lawsuits Dropped"