This article will be covering the installation 1999-2021 GM Auto Fogs Mod on 1999-2002 GM Trucks and SUV's including Chevy Silverado trucks, GMC Sierra trucks, Yukon, Tahoe, and Suburban SUV's. 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 will only 5 minutes to complete.

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For in depth installation instructions, reference the links below:

Link to installation video: Automatic Fog Ligts - (1999-2002) Silverado Sierra

Link to technical install document: 1999-2002 GM Auto Fogs Mod

Vehicle Fitment: 1999 2000 2001 2002 Chevrolet Silverado & GMC Sierra, 2000 2001 2002 Chevrolet Suburban Tahoe & GMC Yukon Escalade, and 2002 Chevrolet Avalanche

Locate the BCM, which is found under the driver side of the dash in the middle. Remove the middle blue connector by pressing the top and bottom taps inwards and pull outwards.

Identify the wires in each pin location on the BCM connector you previously removed. Pin A5 is located on the top row and in the fifth slot from the right. Pin A7 is located on the top row and in the seventh slot 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 A5. 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 A7. For additional leverage, pliers can be used to close T-taps.

Once both T-taps are installed, find the blue ring marked end on the module. The blue ring end needs to be plugged into the wire tapped into pin A7. 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 Ligts - (1999-2002) Silverado Sierra

Install Manual: 1999-2002 GM Auto Fogs Mod