swathdiver
Full Access Member
I noticed that the Silverado manual said the same but figured they didn't want folks messing with them. Mine also adjust only up and down on the 900s but the manuals show you how to do it!
Fog Light Adjustment
- Thread starter BlaineBug
- Start date
Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
BlaineBug
Full Access Member
I don't know what the heck is going on, apparently no one reads what I write.
swathdiver
Full Access Member
I read every post and was responding to Wes. Wes and RooRancher have adjusted their K2 foglights and showed us how to do it.
I put a phillips screwdriver through the hole on my 900s to adjust them and maybe they are different than your K2s.
BlaineBug
Full Access Member
I'll grab a picture possibly today.
BlaineBug
Full Access Member
These are some god awful pictures, I'll admit. You know these vehicles have very little ground clearance in the front, especially with that monstrous air dam. I can't even get my head under there without lifting it up, and considering my fingers were numb from freezing, I decided not to. This is the hole that is beneath each fog light, and if you look straight up, you can see the plastic adjustment gear. But the hole is just as big as this hole so no matter what kind of Phillips screwdriver you insert, there's nothing to hold it tight against the plastic adjustment gear so that you can turn it like you normally find on other headlights. Take my word, there is no adjustment accessible from behind the fog lights - I've been behind there many times.
Attachments
Oh Kee Pah
Full Access Member
Removing the front wheel well liners will give much better visual access to the area. Lifting front of rig will give better access all together.
Climb under there and try to sit up a little bit. You will be surprised at the available head space. Agreed, the dam will impede you a bit. Get some cardboard and lay down, slide under and sit up a little. The fog light assembly is directly above your picture of the plastic piece with the hole in it.
You may need to use some ingenuity, and pieces from local hardware store, to fabricate your own “adjustment brackets”. You can buy other clip-on bolt hardware at car shops (autozone, Napa, etc). Located with replacement hardware for different vehicles, often a revolving display Nothing says you can’t modify the GM setup to fit your own needs.
Climb under there and try to sit up a little bit. You will be surprised at the available head space. Agreed, the dam will impede you a bit. Get some cardboard and lay down, slide under and sit up a little. The fog light assembly is directly above your picture of the plastic piece with the hole in it.
You may need to use some ingenuity, and pieces from local hardware store, to fabricate your own “adjustment brackets”. You can buy other clip-on bolt hardware at car shops (autozone, Napa, etc). Located with replacement hardware for different vehicles, often a revolving display Nothing says you can’t modify the GM setup to fit your own needs.
swathdiver
Full Access Member
The fog on the left is from a GMT900 and the one on the right is from a K2 Tahoe. Both have the phillips screwdriver fitting so you can adjust them from behind. Looking at several 2015 Tahoe foglight videos on youtube this morning, there's plenty of room to get back there and adjust them with a #2 phillips.
BlaineBug
Full Access Member
Monday has a high of 54 - I'll probably get a chance to take a look without freezing my phalanges. I'll double check to see if the threaded rods have Philips screwheads like your picture shows. However my light bulb socket looks entirely different than what is in that picture. If memory serves me correct, I read that the fog light housing you have shown is different, as the later models (mine is a 2019) received a revised light housing. The stock light bulbs that came with the truck are P13W and look nothing like whatever kind of locking mechanism is in your picture.
BlaineBug
Full Access Member
PS - https://www.diodedynamics.com/fog-light-leds-for-2007-2015-chevrolet-tahoe-pair.html
This website shows the same bulb being used from 2007-2015 is a 5201/5202/PS19W/PS24W. So maybe that is a 2015 only specific light housing, and the 2016-2020 models received the revised light housing? Once again my truck does not use this bulb but uses a P13W which has the traditional 3-tab locking mechanism.
The reason I want to adjust my fog light is that ever since I swapped everything to LED, the only time I've ever been flashed high beams is when I have my fog lights on. I can also tell that they are aimed pretty high as they illuminate the road FURTHER than my LED headlights do!
This website shows the same bulb being used from 2007-2015 is a 5201/5202/PS19W/PS24W. So maybe that is a 2015 only specific light housing, and the 2016-2020 models received the revised light housing? Once again my truck does not use this bulb but uses a P13W which has the traditional 3-tab locking mechanism.
The reason I want to adjust my fog light is that ever since I swapped everything to LED, the only time I've ever been flashed high beams is when I have my fog lights on. I can also tell that they are aimed pretty high as they illuminate the road FURTHER than my LED headlights do!
swathdiver
Full Access Member
I saw a video where those LED bulbs put out light much higher than original. The light was from the 2015 which used the same 5202 bulb as mine, the 2015.5 and later use a different one but had the same fittings on the ones I saw. Sorry I couldn't help, back to the drawing board.
BlaineBug
Full Access Member
Fog Light LEDs for 2016-2020 Chevrolet Tahoe (pair)
Increase your nighttime visibility with plug-and-play replacement Fog Light LEDs for 2016-2020 Chevrolet Tahoe (pair).
www.diodedynamics.com
The same website I posted above proves my theory, as it lists 2016-2020 as using the P13W bulb.
petethepug
Michael
LED bulbs must be designed by the the bulb housing MFGR or vis-à-vis. The bulbs are essentially mounted on a projectile or stick. The best way I can describe why it won’t work is the picture below. Try to water the grass evenly with this pointing across the yard.
BlaineBug
Full Access Member
Your suggestion worked, there are Philips screw heads for all of the 3 mounting studs. Only one of the 3, the inner most lower stud, has that plastic "adjustment" wheel so that's the only stud I adjusted, to move the light beam down. Very easy to do without even lifting the vehicle. I'll just have to test it on the road at night to see if I need to make any further adjustment.
BlaineBug
Full Access Member
My LED's don't have an issue. For the projector low beams, high beams, and fog lights, I have the light output set to the left and right at 3:00 and 9:00. Some people mistakenly orient the light emitting diodes straight up and down at 12:00 and 6:00 which isn't right for use with a parabolic reflector.
I have a pretty decent and crisp visible cutoff for all of these lights as well.
petethepug
Michael
My apologies for sounding like I've grouped your handy work with every character here in SoCal that's turned their import sedan into the equivalent of a full-size truck with a 3" lift shining through the back window.
The aftermarket lamps are so out of whack here they may have actually been adjusted, but it didn't make a difference because of how they're installed. If you ever see or hear of a driver on a high-speed chase for throwing Velveeta cheese slices on cars with lights out of adjustment, it isn't me giving them the cheese touch.
The aftermarket lamps are so out of whack here they may have actually been adjusted, but it didn't make a difference because of how they're installed. If you ever see or hear of a driver on a high-speed chase for throwing Velveeta cheese slices on cars with lights out of adjustment, it isn't me giving them the cheese touch.
BlaineBug
Full Access Member
About 3 weeks ago we were on the return leg of a 19 hour 1,150 mile road trip. Somewhere in Kentucky or southern Indiana I passed a Dodge Ram 2500 or 3500 hauling one of those ramp trailers - an independent car carrier. He had 2 or 3 super bright LED lightbars on. Just about every car and truck on the road coming in the opposite direction was flashing this r3t@rd.
I was only getting flashed when my fog lights were on, but I also had a little bit of squat action occuring in the rear due to having a load and a cargo basket hanging off of the rear end as well. I really wanted to use my fog lights all night long but couldn't. I was never flashed once due to the headlights alone.
petethepug
Michael
Meh, no big deal. On longer trips like that just replace the normal pop up utility on your truck with something that’ll take care of bright lights. It’s a simple plug n play swap for one unit to another.
Change this roof accessory to ...
This roof accessory ...
Change this roof accessory to ...
This roof accessory ...
