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2019 Sierra Introduces New Perimeter Lighting System: Feature Spotlight

We’ve already told you that GMC’s 2019 Sierra offers a host of new features such as the carbon fiber bedMultiPro tailgate and Adaptive Ride Control; but one that we haven’t mentioned yet is Perimeter Lighting.

Feature Details

Officially called Perimeter Lighting System or Task Lighting, the feature illuminates the truck’s bed as well as the area around the truck, helping owners see in poorly-lit conditions such as on dark camping grounds, worksites, and driveways.

2019 GMC Sierra 1500 Perimeter Lighting System Diagram

The system on the 2019 Sierra uses eight different LED lights located in the following locations:

  1. Within the outer-most, forward-facing sections of the mirror caps
  2. Within the CHMSL cluster above the rear glass
  3. Within the rear corners of the bed
  4. The truck’s actual reverse lights
  5. Within the tailgate handle cluster

2019 GMC Sierra Denali 1500 Exterior 004 - front end with grille and GMC logo

Availability

On the 2019 Sierra, the Perimeter Lighting System is standard on the top three trim levels – SLT, AT4, and Denali. Trucks equipped with the system can be identified by the vertical strip of LED lights on the front-facing part of the exterior mirror. These lights are key to the system’s functionality, providing the sideways-facing, wide-angle light.

Assigned GM RPO Code DEZ, the mirrors also have a memory feature, are heated, power-adjustable, power-folding, and have puddle lamps.

2019 GMC Sierra Denali 1500 - First Drive - Exterior 008 - rear three quarters driver side

Succeeds Cargo Box Lighting

The Side Perimeter Lighting feature on the 2019 Sierra succeeds the cargo box lighting feature of the previous, K2 platform Sierra. That system was a rather basic feature that only illuminated the cargo box. By comparison, Perimeter/Task Lighting goes well beyond that by illuminating the cargo box as well as the area surrounding the truck.

Does The Silverado Get It Too?

For those wondering whether the Sierra’s corporate cousin – the 2019 Chevy Silverado – also gets the Perimeter Lighting System, the answer is yes… though with different levels of availability. See how here: 2019 Silverado Perimeter Lighting System.

More 2019 Sierra Info & Reporting

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GM Authority Executive Editor with a passion for business strategy and fast cars.

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Comments

  1. Hi. I have a new 2019 GMC Sierra. It’s the X31 Off Road SLT. I’m have issues getting the lights, that are located on the front of the outside rearview mirrors, to come on. I’ve read through both the owners and infotainment manuals and haven’t had any luck. Is there someway you could help me figure out on how to get those lights to come on? Thank you very much for your time.

    Reply
  2. Same here. I can turn them on by pressing the button but when using my remote, only the puddle lights come on. Not the forward facing mirror lights

    Reply
  3. There not going to come on with the remote they are the most nonsense waste of a light that does nothing. Instead of having a turn signal light there they put these stupid “do nothing” lights on the mirrors, you can have both come on or left & right singularly, so stupid, I have them on my 2020 Denali, waste, good going GMC.

    Reply
  4. What is the headlight bulb type that came on my GMC Sierra 1500 Slt pick-up truck? Are they Halogen or LED? Can they be replaced with LED for greater visibility at night?

    Reply

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