Note:
Daytime Running Light (DRL) High-Brightness Mode: Only the bottom light strip illuminates.DRL Low-Brightness Mode: Both the upper and lower light strips illuminate.

For high-spec vehicles with factory DRL, the headlights will automatically detect the DRL signal and default to the high-brightness mode.For low-spec vehicles without factory DRL, the DRL control wire must be properly connected to enable the Daytime Running Light function.

If the DRL strips fail to illuminate as expected, this is usually not a product defect. Please confirm whether your vehicle is equipped with factory DRL before purchasing.

Fit For:
2014-2018 GMC Sierra 1500 Base / Denali / SLE / SLT models only
2015-2019 GMC Sierra 2500HD Base / Denali / SLE / SLT models only
2015-2019 GMC Sierra 3500HD Base / Denali / SLE / SLT models only
(compatible models with factory LED daytime running lights)
(Does not compatible models with 2014 classic body style)
(For models with factory non-LEDs lights headlights: This headlights will light up the bottom LEDs only by manually turn on the parking lights; the top LEDs will not turn on)
(Fits models with factory halogen headlights only; Does Not fit models with factory Xenon HID headlights)

Specifications:
OE number:
GM2502390, GM2503390, GM2502394, GM2503394
23130715, 23130716, 23130717, 23130718
Material: ABS+PC (ABS Plastic Housing/Polycarbonate lens)
Appearance color:
1.Housing Color: Black
2.Lens Color：Clear
3.Reflector Color：White

Packaging include:
Headlights*2(Left+Right)

Features:
Easy to install:
Direct replacement, drilling and cutting are not required.
Superior quality:
Made of ABS and PC materials with toughness and heat resistance functions to ensure its long service life and durability.
Angle adjustment:
Equipped with a headlamp Angle adjustment knob, you can adjust the best Angle of view through the knob.

Suggestion:
1.Please confirm the OE number before purchasing!!!
2.Professional installation is required!!!