This article will be covering the installation 1999-2021 GM auto fogs mod on 2019+ GM Chevrolet Silverado and GMC Sierra trucks. Once installed, the factory fog lights will turn on automatically any time the park lights come on. This installation requires no additional tools and will take only 5 minutes to complete.

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For in depth installation instructions, reference the links below:

Link to installation video:  Automatic Fog Lights - (2019+ New Body Style) Chey Silverado GMC Sierra

Link to technical install document: 2019+ GM Auto Fogs Mod

Vehicle Fitment: 2019 Chevrolet Silverado & GMC Sierra 1500, 2020 Chevrolet Silverado & GMC Sierra 1500 2500HD 3500HD, 2021 Chevrolet Silverado & GMC Sierra 1500 2500HD 3500HD (including Duramax)

Remove driver side kick panel to expose the wiring under the dash. Next, locate the BCM, which is found under driver side of the dash to the upper left hand side. Remove the brown connector by pushing the tab inwards and pulling down.

Identify the wires in each pin location on the brown BCM connector. Pin 10, shown here in red, is located 3 rows up and 3 columns from the left. Pin 22, shown here in green, is locate the bottom row and 5 columns over from the right. Wire color may vary between vehicles, therefore, pin locations should be your primary reference.

Utilizing the T-taps provided, attach one to the corresponding wire found in slot 10. Make sure to completely close the T-taps for a proper connection.

Utilizing the T-taps provided, attach one to the corresponding wire found in slot 22. For additional leverage, pliers can be used to close T-taps.

Once both T-taps are installed, find the blue marked end on the module. The marked end needs to be plugged to the wire tapped into pin 10. Proceed to bend the flexible module to connect the other T-tap.

Lastly, reinstall the connector into the BCM. A click sound will be heard confirming the connector has been fully inserted.

For supplemental and full in depth instructions, please reference our Installation Manual or Installation Video listed below. If you have any questions about this product please reach out to our sales team by phone or email here.

Install Video: Automatic Fog Lights - (2019+ New Body Style) Chey Silverado GMC Sierra

Install Manual: 2019+ GM Auto Fogs Mod