Question about the Headlights
- Thread starter callmebob
- Start date
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just took my car in, they are in fact going to order a new light sensor and indicated that they spoke with GM engineers and they claim the lights are working properly but because there was an error code during diagnostics, they will replace. The service department maintains that the lights are working properly. I didn’t want to get into an argument about it, so hoping once the sensor is replaced the daytime lights will turn on during bright light.
Seems like this issue isn’t fully identified by GM yet and we’re just experiencing the early stages of what likely could be a recall item later.
They tried to tell me the headlights should be on during bright light for safety reasons but couldn’t seem to answer how that would be safe for oncoming vehicles. The point of daytimes are to help ensure car is visible but not blind others… strange.
Seems like this issue isn’t fully identified by GM yet and we’re just experiencing the early stages of what likely could be a recall item later.
They tried to tell me the headlights should be on during bright light for safety reasons but couldn’t seem to answer how that would be safe for oncoming vehicles. The point of daytimes are to help ensure car is visible but not blind others… strange.
They gave me the same load of crap. Tell them to point to where in the manual it says the automatic lights are supposed to come on in bright light for safety reasons.
I told them it wasn't working as per the manual and there was an error code so they needed to replace it. They did, begrudgingly, even saying it "wouldn't change the operation" but replacing the sensor 100% fixed the issue. Lights are now off and DRLs are on in bright sunlight.
I just wish they hadn't damaged my dashboard in the process of replacing the sensor.
skisanger98
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I took my 2022 Suburban in the other day and I waited for 4 hours just to have them tell me I would have to bring it back for a further look. I told them it is just the sensor. They told me that GM forces them to go through the wiring. What CRAP!! Because of this post I ordered my own sensor, which I will get in 3 days. For $16, including shipping it is worth every penny not to deal with the frustration of my dealer.
As far as installation I looked at what it would take and it is not much at all. Maybe a 5 min job. Just pop the panel up and replace.
As far as installation I looked at what it would take and it is not much at all. Maybe a 5 min job. Just pop the panel up and replace.
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Would you be able to drop the link to the instructions or video that you found?
skisanger98
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Just replaced my sensor in less then 5 mins and it fixed the problem.
Take a screw driver or something flat to pry up gently on the panel. Once you pull panel up remove the bad sensor. There are a couple of plastic clips. Just push them in. Replace the sensor and push the panel back in the clips.
I am not a certified GM Technician and it was easy to do. Do at own risk.
Take a screw driver or something flat to pry up gently on the panel. Once you pull panel up remove the bad sensor. There are a couple of plastic clips. Just push them in. Replace the sensor and push the panel back in the clips.
I am not a certified GM Technician and it was easy to do. Do at own risk.
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WalleyeMikeIII
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I’d recommend a plastic trim tool doing this kind of work.
Sorry for this stupid question but please confirm my understanding. I think my low beam headlights are also incorrectly on during bright sunlight (switch is set to Auto). A short phone call and description to my local service dept said they are functioning as they are supposed to. I don't think he is correct.
To avoid descriptive errors on my part, here are a couple example pictures to illustrate...
What my headlights look like in bright sunlight:
What I believe my headlights (DRLs) are SUPPOSED to look like in bright sunlight:
To avoid descriptive errors on my part, here are a couple example pictures to illustrate...
What my headlights look like in bright sunlight:
What I believe my headlights (DRLs) are SUPPOSED to look like in bright sunlight:
Can you share ordering info for the sensor? Web link, PN?
skisanger98
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Motocross338
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I had the headlight issue as well. I have a 22 Tahoe High Country that was built in February 2022. On our first trip I noticed the headlight icon on during a perfectly sunny day, and as the sun went down, the icon went off and DRLs came on. Carried it to the dealership after researching this and coming across this post (plus I had two warranty repairs needing to be done). They tried giving me the same spill that the headlights were suppose to be on during a perfectly sunny day due to safety reason and that GM engineers confirmed they were working as designed. Because it wasn't giving diagnostic code, they refused to change the sensor, so I told them to change the sensor and bill me for the part and one hour labor. They initially refused to do that because there may be a deeper issue (even though they've told me multiple times that all is working "well"), but finally gave in to billing me for a new sensor. I had even sent the service manager the link to this thread and ask him to read the issues people were having and encouraged him to read the GM owner's manual for Tahoe DRLs because they were working opposite of what the manual states. The dealership delivered my Tahoe to the house this past Monday, and they had replaced the sensor and repaired the warranty issues. I looked over the computer printout to see how much I owed on the sensor replacement, and what do you know, it was covered under warranty. The DRLs work as any DRL system is supposed to work and then the headlights come on when it actually gets dark outside. I guess they felt compelled to file it under warranty sense my "problem" was resolved. Man, common sense is in short supply nowadays.
Morales1995
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Well, replaced the sensor and it is till doing it, dealership is utterly useless. Any thoughts? Lol
Sensor is bad. Needs to be replaced. You are correct on what it is supposed to look like.
I have Yukon and part ending in 621 is what fixed my issue.
WalleyeMikeIII
Full Access Member
Try a different dealer?
I'm having the same exact issue on my 22 Yukon XL. Build date 3/22. Took it to the dealership this week assuming it was a faulty sensor. Headlamps are always on - even in bright sunlight when the sun is directly hitting the sensor. The DRL are only on if it is extremely overcast. The system clearly isn't functioning as it should. The master service technician claimed that's how the system is designed to function - it's a "safety" feature on the 22's. I said that didn't make any sense. There is zero reason why the headlamps should come on when it's sunny outside. It was raining that day and he couldn't replicate the issue. He said my side-tinted windows could be to blame. Once again, this makes zero sense. The windshield is not tinted and the sun can be hitting the sensor directly through the front windshield with the windows down and the headlamps will still be on. I'm taking it back to the dealership again this week and showing them this thread. Ridiculous they won't replace it on a $75k vehicle with only 2k miles. This is clearly a set of faulty sensors. We'll see what happens when I go back in this week.
This is literally the same thing that happens to me. Did you ever get any resolution?
Did you fix it yourself?
