Stock Flashing 3rd Break Light?

[jetlife]

I have a 2016 midnight silverado ltz ccsb 5.3l 8speed. About 5700mi. I noticed today that my 3rd brake light pulses 3 or 4 times before going solid. I would like to think I would have noticed this earlier when backing into my garage or elsewhere, but can't say for sure if it has always done it. I checked a buddy's 16 ltz and his does not pulse. Neither does another friend's 14 lt. It is the exact same pattern each time the brake is depressed. Doesn't visually look like a bad led or electrical interference.

 

I did disconnect the battery a few days ago while I installed an Airaid MIT. Also, have a V1 hardwired to RAP. I don't see these as being relevant but just fyi.

 

I've never noticed a Silverado doing this and don't see any setting in the menus for this. Anyone have any idea? I would prefer it to be solid and am doing some research prior to calling a dealership.

[pgamboa]

This is the first I've heard or seen this in a GM Truck. I've seen this on other vehicles and thought maybe something changed in 2017... but you have 2016.

 

 

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[Donstar]

Interesting. I have also seen this on other vehicles and is a popular feature for motorcycles. Did you buy the truck new? Maybe it is an aftermarket add-on.

[jetlife]

Truck was purchased new with 5mi on it. Midnight edition ltz with the ltz plus and convenience (lane assist etc) packages among other options. I doubt it is a part of the convenience package as this would then be very common.

[mjdxtreme]

Is there a little box thats attached to the wires when you take the 3rd brake light. This would be outside of the housing itself and attached to the stock wiring harnes.. I have had a few trucks in the past where the dealer adds on what they call a red alert package thats a blinking 3rd brake light a few times then goes solid. Something about it grabs the attention of other drivers better.

 

http://www.redalertbrake.com/

[Crstfr]

thats a cool featured.. . mine didnt come with it.

[wuznme]

My dealer put this on too...not a GM thing.

[bndawgs]

This is the first I've heard or seen this in a GM Truck. I've seen this on other vehicles and thought maybe something changed in 2017... but you have 2016.

 

 

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Alright, time to get to work on a Pnp kit for this. ;)

[jetlife]

Confirmed dealer add on. One of these weekends I'll have to pull that out. Not a fan of the pulsing 3rd brake light, even if it may provide a minor advanced warning to cars behind me.

 

Thanks everyone!

[bndawgs]

you can see your brake lights while driving?

[Donstar]

Confirmed dealer add on. One of these weekends I'll have to pull that out. Not a fan of the pulsing 3rd brake light, even if it may provide a minor advanced warning to cars behind me.

 

Thanks everyone!

Why? You can't see it but, more importantly, others can! It is not an option I would ask for but I'd keep it if I had it.

[bndawgs]

If I had an led 3rd brake light, I'd be tempted to add it on Anything that might help me avoid a rear end collision would be welcome imo

[Colossus]

They are very annoying and makes me want to crash into the vehicle that uses one in stop and go traffic. Now.. On a little motorcycle that has a small ass taillight assembly, I can see it being useful. There could be an argument made that a flashing center brake light could be illegal according to emergency vehicle lighting laws. They are only supposed to illuminate when the brakes are applied, not flash.

[BlueTopaz14]

My 14 came with it as well. I was curious for a while because I couldn't find another Silverado that did it and then one day I did so I assumed it was just a dealer add on!

 

 

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[Colossus]

Now, on the flip side of things, I am sure someone who has survived being rear ended and had all the aches and pain to go along with it doesn't give a damn how annoying it may be to those behind them. It's intent is good. Just.. annoying. Kind of like Diet Pepsi.