Anyone install LED's behind the grille?

CRApex · November 9, 2020

I'm considering adding an additional LED light, either a light bar or additional LED driving lights. It looks like the only spot would be behind the grille, I really don't want to add a bull bar or anything like that. HAs anyone added any yet?

gSwift · November 9, 2020

Not my truck, but here ya go. Not sure how well it would work on a Chevy, but it works well with the Sierra AT4 grille

Schmidty · November 9, 2020

try this thread: https://www.gm-trucks.com/forums/topic/243520-2020-sierra-hd-light-bars/

CRApex · November 11, 2020

So I just discovered my truck has active aero shutters. I don't think behind the grille LED's will work and I don't see any other option other than a bull bar of some sort for mounting them.

needfulgolfer · November 11, 2020

29 minutes ago, CRApex said:

So I just discovered my truck has active aero shutters. I don't think behind the grille LED's will work and I don't see any other option other than a bull bar of some sort for mounting them.

There’s enough space between the aero shutters and grille to mount a light bar. You can also easily just remove one or two of the blinds if they don’t clear.

CRApex · November 11, 2020

5 minutes ago, needfulgolfer said:

There’s enough space between the aero shutters and grille to mount a light bar. You can also easily just remove one or two of the blinds if they don’t clear.

I'll take a closer look. I was just concerned it would interfere in some way then cause a code to popup. Do you have experience with this already? If so, could you add a picture or two of how it worked out. Thanks

needfulgolfer · November 11, 2020

18 minutes ago, CRApex said:

I'll take a closer look. I was just concerned it would interfere in some way then cause a code to popup. Do you have experience with this already? If so, could you add a picture or two of how it worked out. Thanks

You’ll throw a code of the shutters cannot operate, but not if you just remove the blades. All the sensor knows is if there’s resistance when the blades operate.

I put a light bar on my AT4 with no issues. Ended up popping two of the blades out just because my mount was slightly too far back and I was too lazy to take it off and cut the steel again.

CRApex · November 11, 2020

5 minutes ago, needfulgolfer said:

You’ll throw a code of the shutters cannot operate, but not if you just remove the blades. All the sensor knows is if there’s resistance when the blades operate.

I put a light bar on my AT4 with no issues. Ended up popping two of the blades out just because my mount was slightly too far back and I was too lazy to take it off and cut the steel again.

Got it. Thank you for the info.

slj2008 · November 11, 2020

I got a 31" light bar behind the grill , mounted under Z71 grill emblem - NO PROBLEM

Deibs · December 10, 2020

25.6” light bar tucked up way at the top of the grill! Single row Jiuguang from Amazon, been 2 years on 2 trucks.

A couple zip ties to hold it makes for a quick uninstall, zoom in two rows above GMC logo.

CRApex · December 22, 2020

Got it done. I ended up using zip ties to attach it to the back of the grille. It clears the shutters no prob. I tapped the high beam fuse under the hood so the high beams activate the relay to turn it on. I may add an additional on/off switch at some point depending how I like the high beam setup. The nice part is I didn't have to drill any holes or cut any factory wiring.