All Lights On® (2003-2007 Select GM Models)

All Lights On® Features: 

• Simple, 5-10 minute installation in the under hood relay panel
• Keeps your Fog lights ON when the High beams are enabled
• Retains normal operation of your Fog lights when the High beams are OFF
  

2003 - 2007 GM Classic Full Size Truck platforms including:

• Silverado 1500/2500/3500
• Sierra 1500/2500/3500

2003 - 2006 GM Classic Full Size SUV platforms including:

• Avalanche
• Suburban
• Tahoe

1. Remove the relays labeled: FOG LP, HDLP-LOW, DRL, HDLP-HI

2. Lay the GM All Lights On circuit board in the location shown below

3. Reinstall the four relays back into their original location