Description

The Z-Flash LCM 2500 represents the next generation of Z-Flash innovation, delivering a true plug-and-play GM light control solution purpose-built for 2024+ GM gas and electric vehicles. Designed to meet the needs of modern fleets and emergency responders, the LCM 2500 supports platforms including the Chevy Silverado EV, GMC Sierra EV, 2025 Chevy Tahoe, GMC Yukon Denali, and GMC Sierra HD 3500 Denali.

Engineered to connect directly to the vehicle’s OEM Light Control Module (LCM) located next to the BCM, the Z-Flash LCM 2500 enables controlled flashing of factory-installed exterior lights—no cutting, splicing, or permanent modifications required. Users can choose from up to seven selectable flash patterns, including two new inverted flash modes designed to enhance visibility, recognition, and emergency warning effectiveness.

Flash patterns are easily selected using the factory high-beam lever, preserving full OEM operation and driver familiarity. For added flexibility, the system can also be activated using the included push-button switch, upfitter wire trigger, or OEM key fob, making it an ideal solution for fleet vehicles, first responders, utility trucks, and EV applications.

Fully backward-compatible with previous Z-Flash systems, the LCM 2500 offers a seamless upgrade path while reinforcing Ultra Bright Lightz’s commitment to reliable, vehicle-specific lighting control solutions for today’s evolving GM fleet—gas and electric alike.

*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 LCM 2500 Module
  • One (1) Switch/Hardwire Cable
  • One (1) Vehicle wiring harness

Tech Specs:

  • Seven selectable flash patterns, including two new inverted strobe modes
  • True plug-and-play installation—no cutting, splicing, or programming
  • Multiple activation options: push button, upfitter wire, or OEM key fob
  • Flash pattern selection via factory high-beam lever
  • External outputs sync with factory flash patterns for seamless operation
  • Tested and verified on 2024+ GM gas and EV platforms

Specifications

BrandZ-Flash
Part NumberLCMEV-GMC-CAD-ESC-2025-2026
VehicleCadillac Escalade 2021-2026

Vehicle Fitment

Year(s)MakeModel
2021-2026CadillacEscalade
2021-2026CadillacEscalade ESV

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Z-Flash P/N LCMEV-GMC-CAD-ESC-2025-2026

LCM 2500 for GM

$449.99

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Professional installation available
We install this. Labor runs $140/hour and the time varies by product, so call your local store for an exact quote.
Nothing is charged for it today — your local H&H store works out the exact cost when they call to say your order has landed.
Built to orderShips direct from the manufacturer to your local H&H store. Call 800-953-7108 for lead times.

If an item can’t be sourced, a refund will be given and the order will be canceled.

Free store pickupReady at your local H&H
22 storesAcross the Southeast
Family-ownedServing trucks since 1987
Installation availableLabor from $140/hour — ask your store
Fitment guaranteeIf it doesn't fit, no restocking fee Details
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Warranty handled hereClaim it at the store, not by mail Details
4.8 out of 5 stars, 5,745 Google store reviews. These rate our stores, not this product. Read the reviews.
4.8
5,745 reviews
Store reviews on Google

Rated 4.8 across 24 stores

Every review below is a verified Google review of an H&H store — written by real customers about the people who sold, fitted and stood behind their gear.

Cumming · 4 hours ago

Very helpful and super friendly!!

Marietta · 16 hours ago

Go to LEER Truck Accessories by H&H for your truck needs. Luis and Justin were perfect, I purchased my own running boards to get installed on my truck. Let’s just say the prices were VERY REASONABLE!!!!!!!!! My appointment was at 2:00pm and out with my truck at 2:45pm. Job well done guys. We just moved to the area and I was looking for a truck accessories company. You cannot go wrong with LEER Truck Accessories by H&H. So if you are in the area of Marietta off of Cobb Parkway stop by and check those guys out. I will definitely be back for more upgrades for sure. Thanks you have a customer for life!!!!!

Decatur · 18 hours ago

Great customer service and timely installation with side steps and bed cover. Great job!!!

Pelham · 1 day ago

I was desperate, I couldn’t open my truck topper door. I stopped there to see if they could help. WOW did they ever! Very great service, friendly & mechanically qualified to help. Had the door open & repaired in less than 15 minutes. I tried to pay & they said; “no charge”. I’m definitely going back there! Mike H

Tupelo · 2 days ago

Great communication and customer service!

Oxford · 4 days ago

Bedliner installed, in and out less than 20 minutes

Jonesboro · 4 days ago

Brian was so very professional and knowledgeable of the job he performed!!!

Lilburn · 5 days ago

I purchased a roll up cover that came damaged from the factory. Jim was able to kindly replace my broken part with another one. Exceptional customer service.

Gainesville · 6 days ago

Just had Arcane Warrior roof rack installed. Unbelievably quick and convenient service. Blake and Garrett were readily available and exceptionally personable. Highly recommend them for any and all truck accessory recommendations, provisions and installations!

Reviews of H&H Truck & Outdoor stores, sourced from Google. They rate our stores and service, not this individual product.

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