30" 150W High Power CREE LED Light Bar with Hidden Behind Grille Mounting Bracket & Relay Wire Switch For 2014-2018 GMC Sierra 1500 2500 3500 HD

Q: What truck does this light bar fit in?

A: The 30" 150W high power CREE LED light bar is designed for the 2014-2018 GMC Sierra 1500 2500 3500 HD and the 2014-2015 Chevrolet Silverado 1500.

Q: Is there any modification required to install this LED light bar?

A: No. Installing this LED light bar on your GMC Sierra is straightforward; it only requires removing screws to bolt on the mounting brackets and connecting the wires to a power source.

Q: Do I absolutely need a relay harness wiring kit?

A: Although it's not absolutely necessary to wire your LED light bar to a relay harness, we highly recommend that you do so if you don't have one already. Connecting your LED light bar to a relay harness will protect your GMC's circuits, since the relay harness has a built-in fuse, and ensures that it doesn't overload. Having your LED light bar connected to a relay harness protects your car battery's longevity; turning your car off also turns off the LED light bar. Additionally, our relay harnesses come with an on/off switch so that you can conveniently switch on/off your LED light bar whenever you need to.

Q: How do I install the LED light bar?

A: Refer to our guide on how to install the 2014-2018 GMC Sierra 30" 150W LED light bar.

Q: Can I install this LED light bar without removing my grille?

A: If you are working with a GMC Sierra, it's possible for you to pull the grille back to give the LED light bar clearance to drop through. We don't recommend you do this with other makes/models because you risk scratching your LED light bar and breaking parts of your grille.

Q: After mounting my LED light bar onto the L-shaped support brackets, I found that it hits the metal flaps behind it or it doesn't align the way I want it to. What do I do?

A: Use one of the four other mounting holes on the L-shaped mounting brackets to level your LED light bar. Your grille or fixed metal flaps won't get in the way of the single row LED light bar and you will get full lighting output.

Q: How come when I connect the LED light bar to power, it does not light up? or part of the LED light bar does not light up? or part of the LED light bar does not light up as bright as the other part(s)?

A: The LED light bar is polar sensitive so if the LED light bar does not light up at all, please try to switch the two wires around and try again.

For any "part" light up/flickering, or "part" is not as bright as the other half issues, it indicates the power source is not strong enough to completely power up this high power LED light bar. It happens especially when you are testing the LED light bar with a 12V power supply (normally can only power up to 60W) or could mean your car battery is not fully charged or the battery is too old that does not hold enough "juice" anymore.