Feature Build: 2018 GMC Sierra Denali Emergency Vehicle

This 2018 GMC Sierra Denali came to us all the way from Texas in need of custom LED safety lighting from Wicked Warnings. While this impressive SUV came to us already equipped with a few upfits, our team took it to the next level with custom design and installation. Check out the Wicked Warnings products we used in the 2018 GMC Sierra Denali emergency vehicle upfit. 

2018 GMC Sierra Denali: TIR-3

In the front fascia, we installed our exclusive TIR-3 LED lights in the headlight bezels in the color white. The TIR-3 LED lights have been installed sideways in order to provide increased visibility from the side for added warning. We did not place the TIR-3 inside the fog light, but next to it. The light actually reflects off the fog lamp inside the bezel giving off forward facing light as well.

2018 GMC Sierra Denali: LED HAW DUO

We installed our LED HAW DUOs in the cargo and rear reverse lights in white and synchronized in an X pattern. We also installed additional units brought to us by the client. The client-supplied LED is a white and blue strobe LED we placed by the license plate. Wicked Warnings offers similar products in our online store.

2018 GMC Sierra Denali: Rocker Switch

The LED safety lighting is controlled by our highly popular rocker switch, which we installed in the cabin under the left a/c vent. The placement of this switch is extremely convenient, and looks as if it came from the manufacturer. It is placed inside the 2018 GMC Sierra Denali where the driver can easily see it. 

Wicked Warnings rocker switch

Check out the 2018 GMC Sierra Denali on YouTube

The Wicked Warnings team completed the new GMC Sierra Denali upfit about six months ago, and the video on our YouTube channel is already one of our top-5 most watched EVER! Check it out below. 


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Video Demonstration of Wire Swap Installation for Auto Flasher Kits - Molex Connector Pin Removal & Replacement

What are the Wicked Auto Flasher Kits & how do they work?

Wicked Warnings has been around since 2005 with stellar references and we have been using our WAF (Wicked Auto Flasher) module since early 2016 with zero reported vehicle failures. There is no known risk to using any factory lighting as flashers that we are aware of. Of course, all your factory lights will always revert to factory function when the strobes are not being used.

Many of our builds feature a combination of factory lighting as well as purpose-built emergency lights to create a more effective display, so we urge you to consider more than just factory strobe lighting on your build. We have many options available to supplement the factory lighting.

How does the Auto Flasher connect to my truck anyway?

We have 3 connection methods used in our WAF (Wicked Auto Flasher) kits. The way that we manipulate the factory lighting is through the wires. We DO NOT reprogram any of the computers. Everything we do is easily reversible, and any number of individual kits can be combined onto a single switch if desired. There is no single kit to flash all factory lights, as we must retain circuit individuality. The following three methods are used to interface with the factory wires.

  • Wire Cut: In certain lights, like the white cargo light by the third brake, the only way is to cut a single wire (at this time). We understand that some people are uncomfortable cutting wires and we are working hard to offer “cut-free” solutions as fast as we can. This is how some of the current website kits are sold. Sometimes, this is the only option to achieve the desired display.
  • Wire Swap NO CUT: This is by far our favorite solution and how most of the new generation kits will be made if possible. Wire Swap is how ALL the Headlight and Taillight kits are going to be made for the FORD and many GM trucks. We are working to update the current website options to this new “wire swap” kit and will continue noting any changes on the product online as they happen. It really is just as easy as swapping a wire. Again, the kits will have notes in the description stating which version they are. Click here to watch a video showing the Wire Swap method.
  • (NEW & COMING SOON) Plug N Play Extensions: Plug N Play extensions can be purchased for an extra cost. Please bear with us as these are all handmade and fairly difficult to source parts for. We have some availability and are waiting on some parts for others.

We hope this helps to answer any questions about our Auto Flasher Kits and hope you enjoy these products!


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