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Headlight Illumination Issues

deputy

By deputy
in Troubleshooting & Recalls

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Skeeter McSkeet Senior Enthusiast

Skeeter McSkeet

Posted
Posted

I've been begging them for the flash WLC. My cousin is a sr salesman out there and can't get them to do anything either. I'm about to give up on this and just roll with some rigid DOT fogs lol.

 

 

-Skeet

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Isriam Enthusiast

Isriam

Posted
Posted

I think this has been said but u need a new dealer

quoted for truth.

 

my dealer was like woah thank you for this, i'll make sure our other service people know about it.

glioma Enthusiast

glioma

Posted
Posted

 

my dealer was like woah thank you for this

 

Amazing that this information still hasn't disseminated to some dealers.

Bandit33x Enthusiast

Bandit33x

Posted
Posted

Dealerships deal and forget.Sad we can't put part of the purchase price in escrow until the warranty period is over. Dealers would aim to please!

Now that is an idea! Too bad we probably won't ever see that happen!

JDWLT Enthusiast

JDWLT

Posted
Posted

I had my bulbs replaced last week and the BCM update done. I now notice that the outside temperature reading is not reading the right degrees. Over on the Duramax Forum they are saying the IPC needs a software update also. Has anyone noticed that their outside temperature is off? Mine is off by about 5 degrees and was always right on before the BCM update.

Ventilator Senior Enthusiast

Ventilator

Posted
Posted

I had my bulbs replaced last week and the BCM update done. I now notice that the outside temperature reading is not reading the right degrees. Over on the Duramax Forum they are saying the IPC needs a software update also. Has anyone noticed that their outside temperature is off? Mine is off by about 5 degrees and was always right on before the BCM update.

Haven't noticed that, but they did have to relearn all my tire pressure monitors after the update. They were all double dashes. I guess I'll have to pay a little closer attention to the temp.

 

I do remember reading something about someones displaying in Celsius when it was set to Fahrenheit for a day or so. They told him it would switch back in a day or two and apparently it did.

 

If it is still off after a week, I'd let them know.

Clocked92 Enthusiast

Clocked92

Posted
Posted

Well I found out that my air box wasn't put back in correctly after my headlight upgrade. Took me a little while to put it back in but I managed. This is definitely something everyone who gets this upgrade done should check.

Ranch55 Enthusiast

Ranch55

Posted
Posted

I had my bulbs replaced last week and the BCM update done. I now notice that the outside temperature reading is not reading the right degrees. Over on the Duramax Forum they are saying the IPC needs a software update also. Has anyone noticed that their outside temperature is off? Mine is off by about 5 degrees and was always right on before the BCM update.

 

Same issue happened to my truck after the BCM flash....... Took my truck back in to service dealer and they had to reflash the BCM to correct the temp. sensor output ..... All working okay now.

snikr Enthusiast

snikr

Posted
Posted

At least you have you headlights done. I'm still waiting for mine. 3 weeks and counting.

redwngr Senior Enthusiast

redwngr

Posted
Posted

I had my bulbs replaced last week and the BCM update done. I now notice that the outside temperature reading is not reading the right degrees. Over on the Duramax Forum they are saying the IPC needs a software update also. Has anyone noticed that their outside temperature is off? Mine is off by about 5 degrees and was always right on before the BCM update.

IIRC, Duramax uses a different sensor for the amb temp

Hobb3s Enthusiast

Hobb3s

Posted
Posted

Been a couple of weeks since the upgrade and I must say, it's way better than what it used to be.

smit303 Enthusiast

smit303

Posted
Posted

So what is the verdict with the new bulbs and BCM flash? Are they much better than the modified 9011s? I put them in and saw a good improvement over the stock 9012s.

Ventilator Senior Enthusiast

Ventilator

Posted
Posted

Well I found out that my air box wasn't put back in correctly after my headlight upgrade. Took me a little while to put it back in but I managed. This is definitely something everyone who gets this upgrade done should check.

 

Same here. Also check the hose clamp. Mine was completely loose, but at least they had the hose snapped back over the air box. Could have been sucking in all kinds of dust/dirt out here where I live. No excuse for this stuff.

GMC Jerry Enthusiast

GMC Jerry

Posted
Posted

Well, my bulbs are still NOT in. My dealership ordered them, but only one was sent. That was just as they started getting all on backorder. Well, one came and that was all. Headlamps require two. Why ship just one? I have called the dealership about 3 times - still on back order. It has been over 6 weeks now. Come on, GM, lets get this going!!

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