FLEECE FPE-GM-ALO-37 GM ALL LIGHTS ON MODULE 2003-2007 SELECT MODELS

Light up the night in your 2003–2007 GM with the FLEECE FPE-GM-ALO-37 GM All Lights On Module. This simple, plug-in board lets your high-beams, low-beams, and fog lamps shine together for maximum down-road visibility and safer towing, backroads, and weather driving—without cutting wires. Fleece All Lights On 03-07 GM, Silverado Sierra fogs with highs, LB7 LLY LBZ lighting upgrade, CPP Diesel Fleece module, plug and play headlight mod

Why it wins

• Simultaneous high/low/fog operation for a wider, brighter pattern
• True plug-and-play install in the under-hood relay box
• Reversible and service-friendly—no splicing or tuning required
• Engineered by Fleece Performance Engineering

Fitment

Vehicles: 2003–2007 (Classic) Chevrolet Silverado 2500/3500 & GMC Sierra 2500/3500; many 2003–2006 GM full-size SUVs (as equipped—see owner’s/service guide).
Engine/Trims: Works with LB7/LLY/LBZ platforms and other gas/diesel trims that use the compatible relay layout.
Install notes: Installs in the under-hood fuse/relay center; retains normal fog-light operation when highs are off.

Cross-Reference / Related Fleece Items (CPP Diesel)

• FLEECE FPE-ALO (All Lights On – broad GM coverage)
• FLEECE FPE-ALO-TACOMA-1623 (Tacoma 2016–2023)
• FLEECE FPE-ALO-TUNDRA-0717 (Tundra 2007–2017)

It allows high-beams, low-beams, and fogs to operate together when the highs are on—expanding near- and far-field light coverage.

Yes. Remove four relays, lay the board in place inside the relay box, and reinstall the relays—no cutting or tuning required.

No fault codes are expected. Daytime running light behavior follows the factory strategy; the board only alters how the lamps combine with highs.

Laws vary by state/province regarding auxiliary lighting. Check local regulations and use responsibly.

Specifications for FLEECE FPE-GM-ALO-37