Description
ZW-GM (ZWAGZ) – GM Light Controller Module
Add professional-grade flashing capability to your GM truck or SUV with the ZW-GM Light Controller Module (ZWAGZ). This plug-and-play system connects directly to your vehicle’s OEM Body Control Module (BCM) and allows you to flash your factory lights in multiple patterns—activated using the high-beam lever, push button, or up-fitter trigger.
Perfect for first responders, fleet operators, tow trucks, snow plows, and construction vehicles, the ZW-GM delivers OEM-integrated control without splicing wires or affecting factory warranties.
Key Features
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3 Flash Patterns – Includes alternating, wig-wag, and triple-burst sequences
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Plug & Play Installation – Installs directly at the BCM with no wire cutting
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Activation Options:
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OEM high-beam lever
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Included push button switch
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Up-fitter wire trigger (for equipped trucks)
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Mimic Outputs – Synchronize external lights or lightbars with factory flash patterns
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OEM-Safe Integration – Fully reversible, no dealer reprogramming required
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1-Year Warranty – Backed by reliable Canadian support
Vehicle Compatibility
| Model | Year Range |
|---|---|
| Chevy Silverado / GMC Sierra | 2014–2023 (Pre-facelift) |
| Chevy Tahoe / Suburban | 2018–2020 |
For newer GM trucks (facelift models equipped with a separate OE Lighting Control Module), see the ZW-GMLCv2 Module.
Why Choose the ZW-GM?
The ZW-GM brings professional flashing functionality to your older-generation GM trucks and SUVs with true plug-and-play simplicity. By leveraging factory controls, it offers fast, reliable activation and OEM-level safety—making it ideal for emergency, roadside, and utility use.
Built tough for real-world fleet conditions and engineered for seamless factory integration, the ZW-GM Light Controller is the perfect upgrade for 2014–2023 GM vehicles.