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  • Z-Flash LCM for GM
  • Z-Flash LCM for GM

Z-Flash LCM for GM

Regular price $339.99
Unit price per
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Introducing the Z-Flash LCM – a fast, one-cable solution that lets you flash your vehicle's exterior factory lights in minutes!

Upgrade your GM vehicle’s lighting with the Z-Flash LCM, a fast-install device that connects directly to your Light Control Module (LCM) in just minutes. This advanced module lets you flash all exterior factory lights, improving visibility and safety for critical situations.

Specifically engineered for select new GM models, the Z-Flash LCM offers flexible activation through the included switch or by integrating with your preferred controller or switch box. With its plug-and-play design and no need for an external power source, setup is simple and hassle-free.

Enhance your GM vehicle’s lighting performance with the Z-Flash LCM, providing reliable, powerful visibility when you need it most.

*2022 Silverado & Sierra 1500 built 8/2021- 5/2022 require a visual inspection for the presence of the Lighting Control Module (LCM). If an LCM is present, you need the Z-Flash LCM for GM. If no LCM is present, you need the Z-Flash BCM for GM.

*2023 Silverado & Sierra 2500/3500 built 8/2022-5/2023 require a visual inspection for the presence of the Lighting Control Module (LCM). If an LCM is present, you need the Z-Flash LCM for GM. If no LCM is present, you need the Z-Flash BCM for GM.

What's Included:

  • One (1) Z-Flash Module
  • One (1) Switch/Hardwire Cable
  • One (1) Vehicle wiring harness

Tech Specs:

  • Five Flash Patterns
  • Plug and play; installs in just a few minutes
  • Includes switch, mounting tape, and hardwire cable
  • Easy activation using the included switch or OEM controls

When activated, the Z-Flash LCM for GM vehicles can flash:

  • Low beam headlights
  • High beam headlights
  • Fog lights
  • Turn signals
  • Reverse lights
  • Tail lights
  • Daytime Running Lights
  • License plate lights
  • Center mount high stop light

Instruction manual:

Request a Z-Flash for your vehicle:

Z-Flash Testimonials

  • ★★★★★
    Easy enough install
  • ★★★★★
    We have all Models of Fords and Chevys,in our Fleet and we use Ultra Bright Lightz for most of all our units
  • ★★★★★
    Flasher works just as described and easy install! Very nice unit.
  • ★★★★★
    Easy install. Plug and Play. After it’s a matter of customization, which pattern do I like, what bulbs do I want to flash, do I want to install my own switch? Everything can be installed and ready to go in 10 mins or less with a 10mm socket.

Frequently ask questions

Find the most frequently asked questions below.
  • No, the Z-Flash will not damage the LCM. The module is plug-and-plug and requires no splicing. It can be removed anytime and leaves no trace of being installed. The Z-Flash is significantly safer for a vehicle's electrical system than traditional aftermarket emergency vehicle lighting.

  • No, the Z-Flash is plug-and-play and does not require permanent modifications to the vehicle. They can be removed and reinstalled and leave no trace of being in the vehicle.

  • This depends on local and state regulations. In many areas, the use of flashing headlights is restricted to emergency and authorized vehicles on public roads. The Z-Flash is legal to use at most car shows.

  • The Z-Flash generally consumes very little power when not in use. It is always recommended to ensure the vehicle’s engine is running when using the device. The Z-Flash uses very little power when off, but like most aftermarket vehicle products, it may drain the battery when the vehicle is in long term storage.

  • Yes, the Z-Flash can often be used alongside other emergency or auxiliary lighting systems. The Z-Flash can be powered on using a 12V controller, switch box, or upfitter switch.

  • No, the Z-Flash is designed to be installed inside the vehicle and has no waterproofing rating. It should be installed in the cab and not in the engine compartment or any other wet areas.

Customer Reviews

Based on 58 reviews
93%
(54)
7%
(4)
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L
Lee Schofield
Z-flash for a 2025 GMC 1500 Sierra

Very easy to install

M
Matthew LaGrone
Awesome Product, Super Easy Installation

I love these Z Flashers, they are super easy to install, highly recommended

S
Shawn Harden

Easy install and works great

R
Reggie Watkins
Flash

I work in construction and on the sides of the road a lot. This flash kit is awesome and works as advertised.

J
Joe Pardini

Great product