Fog Lights - Convert DRL?

[BigMick2023]

2023 Silverado High Country here......

 

Anyone know if there is a way you can rewire the Fog lights to run all the time along with the DRL?

Presently if you turn on the fog lights the DRL dim down........I want them to stay on full brightness but also turn on the fog lights. 

 

Why?

For added visibility.....I rarely if ever drive at night, but want as much daytime front light visibility as I can get.

Can't see using the fog lights for anything else otherwise. 

Thanks.... 

[mafd2]

28 minutes ago, BigMick2023 said:

2023 Silverado High Country here......

 

Anyone know if there is a way you can rewire the Fog lights to run all the time along with the DRL?

Presently if you turn on the fog lights the DRL dim down........I want them to stay on full brightness but also turn on the fog lights. 

 

Why?

For added visibility.....I rarely if ever drive at night, but want as much daytime front light visibility as I can get.

Can't see using the fog lights for anything else otherwise. 

Thanks.... 

Check with Ofer at Gen 5 DIY. They've been doing plug and play harnesses for several years now on Silverado/Sierra. I've used them before.

[Naughty Donkey Performance]

Boostautoparts.com

 

Gen5 seems ridiculously priced

[dieselfan1]

That would be nice to have.

I want as many lights on as possible so morons don't pull out in front me.

[BigMick2023]

Thanks guys.....

 

 

[BigMick2023]

Sorry to say neither of the above will work for me.....darn I was hoping!

 

Gen5 DIY doesn't have anything for 2023 refresh models. 

Boostautoparts has a harness but it requires the parking brake lights to be turned on to activate the fogs automatically.......on the refreshed Silverado when you activate the parking lights, it turns off the DRLs which defeats the point of what I'm trying to do. 

I even called them and they said they have not looked into activating the fogs off the DRLs and the existing harness would not do what I was wanting. 

 

Appreciate the try guys,....

[mafd2]

1 hour ago, BigMick2023 said:

Sorry to say neither of the above will work for me.....darn I was hoping!

 

Gen5 DIY doesn't have anything for 2023 refresh models. 

Boostautoparts has a harness but it requires the parking brake lights to be turned on to activate the fogs automatically.......on the refreshed Silverado when you activate the parking lights, it turns off the DRLs which defeats the point of what I'm trying to do. 

I even called them and they said they have not looked into activating the fogs off the DRLs and the existing harness would not do what I was wanting. 

 

Appreciate the try guys,....

Call Gen 5 and speak with Ofer.  928-505-1383. They're always working on new harnesses. Tell him what you want. 

[newdude]

On 7/23/2023 at 8:02 PM, BigMick2023 said:

2023 Silverado High Country here......

 

Anyone know if there is a way you can rewire the Fog lights to run all the time along with the DRL?

Presently if you turn on the fog lights the DRL dim down........I want them to stay on full brightness but also turn on the fog lights. 

 

Why?

For added visibility.....I rarely if ever drive at night, but want as much daytime front light visibility as I can get.

Can't see using the fog lights for anything else otherwise. 

Thanks.... 

 

 

They are dimmed per DOT regulations.  Just like you see on cars where the DRL shuts off when the turn signal is on, in this scenario the turn signal must present brighter than the DRL.  

[Naughty Donkey Performance]

15 hours ago, BigMick2023 said:

Sorry to say neither of the above will work for me.....darn I was hoping!

 

Gen5 DIY doesn't have anything for 2023 refresh models. 

Boostautoparts has a harness but it requires the parking brake lights to be turned on to activate the fogs automatically.......on the refreshed Silverado when you activate the parking lights, it turns off the DRLs which defeats the point of what I'm trying to do. 

I even called them and they said they have not looked into activating the fogs off the DRLs and the existing harness would not do what I was wanting. 

 

Appreciate the try guys,....https://boostautoparts.com/products/1999-2023-gm-auto-fogs-mod

or this

https://boostautoparts.com/products/6hi

 

both work great and take 5 mins to put in, the drl's and fogs on is pretty bright plus I put on a Silverlight led strip last night and my front end looks excellent at night and def more visible in the day.

Is it only the new refreshed trucks that dim the drl's if the fogs are on? I have not noticed that on my 2020.

More lights on the better, but the morons will still pull out in front of you........lol

try this  oops who knows scroll up and click on  the links.........I just push my fog light button on in the day and they are on as well as the DRL's and the "raptor" lights plus the new 49" Silverlight I tapped both the Led raptors and the Silverlight off of the Fogs with a piggyback fuse.

Edited July 25, 2023 by Naughty Donkey Performance

[BigMick2023]

6 hours ago, Naughty Donkey Performance said:

try this  oops who knows scroll up and click on  the links.........I just push my fog light button on in the day and they are on as well as the DRL's and the "raptor" lights plus the new 49" Silverlight I tapped both the Led raptors and the Silverlight off of the Fogs with a piggyback fuse.

 

Yes I looked at both of those and thus my reply above......and also talked to boostautoparts on the phone, they don't have anything to do what I desire and they stated as such......

Simply put, all I want is the fogs turned on during the day without dimming the DRL, neither of those options do that. 

[BigMick2023]

11 hours ago, newdude said:

 

 

They are dimmed per DOT regulations.  Just like you see on cars where the DRL shuts off when the turn signal is on, in this scenario the turn signal must present brighter than the DRL.  

 

Show me anywhere it states the DRL need to dim when the fogs are turned on?........has nothing to do with the turn signal operation or headlight operation.

I just want to turn on the fogs and not dim down the DRL......honestly pretty simple, or so it seems.

Edited July 26, 2023 by BigMick2023

[newdude]

12 hours ago, BigMick2023 said:

 

Show me anywhere it states the DRL need to dim when the fogs are turned on?........has nothing to do with the turn signal operation or headlight operation.

I just want to turn on the fogs and not dim down the DRL......honestly pretty simple, or so it seems.

 

 

Code of Federal Regulations (govinfo.gov)

 

S5.5.11(a) Any pair of lamps on the front of a passenger car, multipurpose passenger vehicle, truck, or bus, whether or not required by this standard, other than parking lamps or fog lamps, may be wired to be automatically activated, as determined by the manufacturer of the vehicle, in a steady burning state as daytime running lamps (DRLs) and to be automatically deactivated when the headlamp control is in any “on” position, and as otherwise determined by the manufacturer of the vehicle, provided that each such lamp:

 

(1) Has a luminous intensity not less than 500 candela at test point H-V, nor more than 3,000 candela at any location in the beam, when tested in accordance with Section S11 of this standard, unless it is:

 

(i) A lower beam headlamp intended to operate as a DRL at full voltage, or at a voltage lower than used to operate it as a lower beam headlamp; or

 

(ii) An upper beam headlamp intended to operate as a DRL, whose luminous intensity at test point H-V is not more than 7,000 candela, and which is mounted not higher than 864 mm above the road surface as measured from the center of the lamp with the vehicle at curb weight;

 

(2) Is permanently marked “DRL” on its lens in letters not less than 3 mm high, unless it is optically combined with a headlamp;

 

(3) Is designed to provide the same color as the other lamp in the pair, and that is one of the following colors as defined in SAE Standard J578 MAY88: White, white to yellow, white to selective yellow, selective yellow, or yellow;

 

(4) If not optically combined with a turn signal lamp, is located so that the distance from its lighted edge to the optical center of the nearest turn signal lamp is not less than 100 mm, unless:

 

(i) The luminous intensity of the DRL is not more than 2,600 candela at any location in the beam and the turn signal meets the requirements of S5.3.1.7; or

 

(ii) (For a passenger car, multipurpose passenger vehicle, truck, or bus that is manufactured before October 1, 1995, and which uses an upper beam headlamp as a DRL as specified in paragraph S5.5.11(a)(1)(ii)) the luminous intensity of the DRL is greater than 2,600 candela at any location in the beam and the turn signal lamp meets the requirements of S5.3.1.7; or

 

(iii) The DRL is optically combined with a lower beam headlamp and the turn signal lamp meets the requirements of S5.3.1.7; or(iv) The DRL is deactivated when the turn signal or hazard warning signal lamp is activated.

 

(5) If optically combined with a turn signal lamp, is automatically deactivated as a DRL when the turn signal lamp or hazard warning lamp is activated, and automatically reactivated as a DRL when the turn signal lamp or hazard warning lamp is deactivated.

 

(b) Any pair of lamps that are not required by this standard and are not optically combined with any lamps that are required by this standard, and which are used as DRLs to fulfill the specifications of S5.5.11(a), shall be mounted at the same height, which shall be not more than 1.067 m above the road surface measured from the center of the lamp on the vehicle at curb weight, and shall be symmetrically disposed about the vertical centerline of the vehicle.

 

 

 

FMVSS standards seem to state clearly that the DRL must dim or go out when the signals are on, and must be deactivated (or lower powered) when the headlight switch is turned on to activate the rest of the lighting.  

Edited July 26, 2023 by newdude

[BigMick2023]

1 hour ago, newdude said:

 

 

Code of Federal Regulations (govinfo.gov)

 

S5.5.11(a) Any pair of lamps on the front of a passenger car, multipurpose passenger vehicle, truck, or bus, whether or not required by this standard, other than parking lamps or fog lamps, may be wired to be automatically activated, as determined by the manufacturer of the vehicle, in a steady burning state as daytime running lamps (DRLs) and to be automatically deactivated when the headlamp control is in any “on” position, and as otherwise determined by the manufacturer of the vehicle, provided that each such lamp:

 

(1) Has a luminous intensity not less than 500 candela at test point H-V, nor more than 3,000 candela at any location in the beam, when tested in accordance with Section S11 of this standard, unless it is:

 

(i) A lower beam headlamp intended to operate as a DRL at full voltage, or at a voltage lower than used to operate it as a lower beam headlamp; or

 

(ii) An upper beam headlamp intended to operate as a DRL, whose luminous intensity at test point H-V is not more than 7,000 candela, and which is mounted not higher than 864 mm above the road surface as measured from the center of the lamp with the vehicle at curb weight;

 

(2) Is permanently marked “DRL” on its lens in letters not less than 3 mm high, unless it is optically combined with a headlamp;

 

(3) Is designed to provide the same color as the other lamp in the pair, and that is one of the following colors as defined in SAE Standard J578 MAY88: White, white to yellow, white to selective yellow, selective yellow, or yellow;

 

(4) If not optically combined with a turn signal lamp, is located so that the distance from its lighted edge to the optical center of the nearest turn signal lamp is not less than 100 mm, unless:

 

(i) The luminous intensity of the DRL is not more than 2,600 candela at any location in the beam and the turn signal meets the requirements of S5.3.1.7; or

 

(ii) (For a passenger car, multipurpose passenger vehicle, truck, or bus that is manufactured before October 1, 1995, and which uses an upper beam headlamp as a DRL as specified in paragraph S5.5.11(a)(1)(ii)) the luminous intensity of the DRL is greater than 2,600 candela at any location in the beam and the turn signal lamp meets the requirements of S5.3.1.7; or

 

(iii) The DRL is optically combined with a lower beam headlamp and the turn signal lamp meets the requirements of S5.3.1.7; or(iv) The DRL is deactivated when the turn signal or hazard warning signal lamp is activated.

 

(5) If optically combined with a turn signal lamp, is automatically deactivated as a DRL when the turn signal lamp or hazard warning lamp is activated, and automatically reactivated as a DRL when the turn signal lamp or hazard warning lamp is deactivated.

 

(b) Any pair of lamps that are not required by this standard and are not optically combined with any lamps that are required by this standard, and which are used as DRLs to fulfill the specifications of S5.5.11(a), shall be mounted at the same height, which shall be not more than 1.067 m above the road surface measured from the center of the lamp on the vehicle at curb weight, and shall be symmetrically disposed about the vertical centerline of the vehicle.

 

 

 

FMVSS standards seem to state clearly that the DRL must dim or go out when the signals are on, and must be deactivated (or lower powered) when the headlight switch is turned on to activate the rest of the lighting.  

 

 

Thanks for justifying my comments......

I read it all and I fail to see where it says the DRL need to dim or be deactivated when only the fog lamps are turned on......

It states when the parking or headlamps are on, not fog lights. 

 

Appreciate the verification for what I want to do.......which is to only turn on the fog lights and not have it affect intensity of DRL. 

Again, nothing to do with the turn signals, they will operate as intended by GM.   

Edited July 26, 2023 by BigMick2023

[jashaw]

Interesting the DRL's dim down when the fogs are activated via the button. My 2020 DRL's do not dim when I push the fog light button. Must be something with the refresh models....weird.

 

 

Side note: I did notice during the day when I have the fogs on. The DRL's will dim down when in Park, but will be full brightness in Drive.

 

Not much useful info for your scenario though.

 

 

[newdude]

1 hour ago, BigMick2023 said:

 

 

Thanks for justifying my comments......

I read it all and I fail to see where it says the DRL need to dim or be deactivated when only the fog lamps are turned on......

It states when the parking or headlamps are on, not fog lights. 

 

Appreciate the verification for what I want to do.......which is to only turn on the fog lights and not have it affect intensity of DRL. 

Again, nothing to do with the turn signals, they will operate as intended by GM.   

 

 

No.

 

Fog lamps power on the running lamps therefore it dims the DRL.  The fogs are tied with them.  The fogs don't just come on by themselves, it places the lighting system into the "park" lamp position without actually activating the switch.

 

So what you want to do can't be done.