Gen5DIY
2019-2023 Sierra New Body Foglight Harness(Adding Fog Lights)
2019-2023 Sierra New Body Foglight Harness(Adding Fog Lights)
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Have you added fog lights to your new Sierra and need a proper way to connect them, well look no further. 
has the plug and play harness available for you. Harness is available in 1 of 3 options.
This harness will work on both GM lights as well as aftermarket fog lights as all aftermarket fog lights, for this year range, use the same GM plug.
250500-This harness will simply allow the fog lights to come on at night and remain on when the high beams are on. The fog lights will not be on during the day unless you manually turn on your headlight switch.
250505- This harness will also allow for the fog lights to come on at night but will turn them off when the high beams are used. Some states require this..
Both the 250500 and 250505 option, trigger the fog lights on when the parking lights are on. They are not triggered off of the low beam bulb as many trucks use the low beam as the DRL's. If you are to manually turn your headlight switch, to the parking light position, you will have parking lights and fog lights. In auto mode, they will just come on automatically at night as the parking lights come on at night.
250507- This harness will allow you to control the fog lights with a switch so you have full control of them day and night. Unfortunately the GM switch cannot be used as the GM switch is not a simple on/off switch. Our harness will come with all the necessary wiring and a 1 inch round on/off switch. You can use our switch or feel free to use a on/off switch of your choice.
Switch Installation-Click Here
Does not require dealer programming..
Harness is designed to work with OEM GM fog lights
Harness works on
- 19-21 Silverado 1500 (New Body)
- 2022 Silverado 1500 Limited
- 2020-2023 Silverado HD models
- WILL NOT FIT 22+REFRESH MODELS
OVERVIEW VIDEO
Description
Description
Have you added fog lights to your new Sierra and need a proper way to connect them, well look no further. has the plug and play harness available for you. Harness is available in 1 of 3 options.
This harness will work on both GM lights as well as aftermarket fog lights as all aftermarket fog lights, for this year range, use the same GM plug.
250500-This harness will simply allow the fog lights to come on at night and remain on when the high beams are on. The fog lights will not be on during the day unless you manually turn on your headlight switch.
250505- This harness will also allow for the fog lights to come on at night but will turn them off when the high beams are used. Some states require this..
Both the 250500 and 250505 option, trigger the fog lights on when the parking lights are on. They are not triggered off of the low beam bulb as many trucks use the low beam as the DRL's. If you are to manually turn your headlight switch, to the parking light position, you will have parking lights and fog lights. In auto mode, they will just come on automatically at night as the parking lights come on at night.
250507- This harness will allow you to control the fog lights with a switch so you have full control of them day and night. Unfortunately the GM switch cannot be used as the GM switch is not a simple on/off switch. Our harness will come with all the necessary wiring and a 1 inch round on/off switch. You can use our switch or feel free to use a on/off switch of your choice.
Switch Installation-Click Here
Does not require dealer programming..
Harness is designed to work with OEM GM fog lights
Harness works on
- 19-21 Silverado 1500 (New Body)
- 2022 Silverado 1500 Limited
- 2020-2023 Silverado HD models
- WILL NOT FIT 22+REFRESH MODELS
OVERVIEW VIDEO
Item Specifics
Item Specifics
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