Jump to content

Headlights intermittently turn on/off

Bigbee0356
 Share

Recommended Posts

Bigbee0356 New Member

Bigbee0356

Posted
Posted (edited)

Anyone ever had an issue with both headlights not turning on?

I was on the highway, with my headlight switch always set to auto, the sun went down and the headlights never turned on. I tried moving the switch and triggering just the high beams aswell and nothing would work. I made it home and turned the truck off and back on again and they came back on and have been on since. Any ideas? Checked all the fuses, just have LEDs in it that both work. 
2014 gmc sierra 1500

Edited by Bigbee0356
Add mod
MikeBMW Senior Enthusiast

MikeBMW

Posted
Posted

Just a guess, do you have a windshield tint?
Also, did you inadvertently cover the dash sensor for a bit of time?

  • Like 1
Bigbee0356 New Member

Bigbee0356

Posted
  • Author
Posted
8 hours ago, MikeBMW said:

Just a guess, do you have a windshield tint?
Also, did you inadvertently cover the dash sensor for a bit of time?

No windshield tint, and nothing covered the sensor. It all started when I left my truck at the airport for a week while I was traveling. 

  • Like 1
MikeBMW Senior Enthusiast

MikeBMW

Posted
Posted
14 hours ago, Bigbee0356 said:

No windshield tint, and nothing covered the sensor. It all started when I left my truck at the airport for a week while I was traveling. 

Yep, a low battery can mess up all kinds of things.
Once you get a full charge and clear all of the codes, all should be good.
Been there and done that as I'm on my third battery - when the other ones discharged to a low voltage, I'd always have to clear the codes to get everything back to normal.
You may have some legacy codes which would be beneficial to clear.

  • Like 1
  • 2 weeks later...
GMCustomerService Senior Enthusiast

GMCustomerService

Posted
Posted
On 3/4/2026 at 7:46 PM, Bigbee0356 said:

Anyone ever had an issue with both headlights not turning on?

I was on the highway, with my headlight switch always set to auto, the sun went down and the headlights never turned on. I tried moving the switch and triggering just the high beams aswell and nothing would work. I made it home and turned the truck off and back on again and they came back on and have been on since. Any ideas? Checked all the fuses, just have LEDs in it that both work. 
2014 gmc sierra 1500

Proper headlight functionality is imperative to safely operate your 2014 Sierra. It is highly advise to visit a GMC dealership for a diagnosis before continuing driving the vehicle any further. Allow us to help connect you with one in your area by emailing us at [email protected]. Please include any additional information into your Sierra and add your forum username in the subject line. From there, we will be in the best position to assist. 

  • Haha 1

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • KARNUT
      Travel Trailer 2024 2500 HD 6.6 Gas Engine ?

      By KARNUT · Posted

      Starting at 17 running parts for my father’s construction business to haul our equipment. Eventually doing shows, sales and training after purchase. I drove a minimum of 50K miles a year. Half hauling something. After retiring 30K miles a year to the last 2 years 15K miles a year. 2/3rds highway driving. The major contribution to fatigue for me is from anticipation and awareness. I just don’t relax. Too many idiots on the road. There’s two kinds. The group that never leave the left lane tied together afraid to let anyone in doing 80. They’re mostly on weekends. Then the left lane sleepers usually next to a tractor trailer not advancing. Eventually the tractor trailer will drift over the sleeper will wake up. The train moves and the tailgaters who are usually mad as hell. You definitely don’t want to mix with them. The tail wagging bumper puller’s with under powered trucks are holding the tractor trailer up. That bunch are dangerous. I usually pace ahead all that. Unless there’s a gap when I can chill and let the speeders pass. I tried all different types of driving. I stay to the right except to pass, it’s the law that’s getting in forced more now because of road rage. I was so happy when my wife didn’t want to do the camping life. I had enough of pulling for work. The family has a bus and fifth wheel. I haven’t driven either one since retiring. No thanks. 
    • Chuck FB
      Travel Trailer 2024 2500 HD 6.6 Gas Engine ?

      By Chuck FB · Posted

      Yesterday a suggested youtube video thumbnail caught my attention so I watched through it and it was a bunch of short clips someone gathered together of people pulling trailers, a lot of them were bumper pull holiday trailers and a pickup or suv pulling it. a few fifth wheels as well, some motorhome crashes also. The tail wagging the dog theme was quite evident in numerous self inflicted accidents that took out vehicles around them sometimes in the process as the unit finally swung around and flipped over in the middle of the highway. Or the other classic which literally could be called "I forgot the trailer was back there" in passing another vehicle on a multi lane one way freeway and then cutting back in line before the back of the rv trailer had passed the front of the passed vehicle and often in front of a tractor trailer and that never ended well. Or the wide kick out swing of the rear of a long travel trailer as they have so much overhang behind the axles and the trailer smashes into the side of vehicles in the next lane over ( typically sharp turns in city driving ). It makes one leery for good reason to be near an RV trailer after watching a video like that and be it on the highway, in town, or at a gas station where that rear end comes swinging around due to the fuel station being so cramped and not intended for larger trailers. I wonder how many officers have heard those words though "I forgot it was back there" as they investigate the accident LOL. 
    • Atlas
      Gas Prices

      By Atlas · Posted

      $5.10 for regular at the Kroger   It's been 6 months... is this the "new normal" ?
    • diyer2
      Travel Trailer 2024 2500 HD 6.6 Gas Engine ?

      By diyer2 · Posted

      Just because a person can buy a travel trailer or a motorhome doesn't mean they can drive it properly. My observation during my RVing years. 
    • diyer2
      Joke Thread

      By diyer2 · Posted

      The cure for facism. https://imgur.com/gallery/cure-fascism-9DH3bHs  

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...