A Light Controller-connected module for select NEW GM vehicles that allows you to flash the OEM lights with a simple press of button.  

The ZW-GMLC is a plug and play unit at the OE Light Control Module (beside the BCM) which allows you to flash the factory lights in 3 different flash patterns. All patterns are selectable using the high-beam lever. The unit can also be triggered via the provided push button, wire trigger (up-fitter trucks) or using the OEM keyfob!


  • 3 unique flash patterns, including a strobe-mode on each
  • Plug & Play
  • Optional: Push button activation, up-fitter wire activation, keyfob activation
  • Easy activation using OEM controls
  • Outputs mimic flash patterns for external lighting systems

Compatibility - GM vehicles (FACE-LIFT only): 

Model Year
Silverado 1500
2022 & up 
Suburban, Tahoe, Yukon
2021 & up
Sierra 1500
2022 & up
Silverado HD 2500, 3500 2023+*
Sierra HD 2500, 3500 2023+*

*NOTE: 2023 HD trucks require a visual inspection for the presence of the Lighting Module. 2024 HD trucks are always compatible.

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