Automatic braking - anyone have it?

[cardude2000]

It's very confusing since GMC limits it based on trim

If you want adaptive cruise, you need a SLT (which will front brake only when cruise is on)

If you want complete front braking, you need a Denali

SLE $545 forward collision alert
forces you to add

• IntelliBeam headlamps
• Lane Keep Assist
• Enhanced Driver Alert Package

SLT $995 Adaptive Cruise Control with Front Automatic Braking

Denali $1,420 Automatic Collision Preparation inc Intelligent Brake Assist and Collision Avoidance Braking
forces you to add

• HUD
• Adaptive Cruise Control with Front Automatic Braking

I have a Denali with all of those but I'm pretty sure it only brakes when cruise control is on. (2016).


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[NowZoomer]

Right if you go by the build tool, your alert will go ove

I have a Denali with all of those but I'm pretty sure it only brakes when cruise control is on. (2016).


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Except the description would lead you to believe they are 2 separate things ie what is collision avoidance braking vs ACC with front automatic braking

This is what I alluded to before ... assuming it has the green icon in the dash (so it knows there's a car ahead) I'm not sure if the truck will stop on its own outside of ACC on, and I'm not willing to try it out

 

[WCDENALI]

My 2017 Denali XL has ACC and collision avoidance braking. I was driving on the freeway the other day and a vehicle cut me off...before I could react and apply the brake, the seat vibrated, the HUD flashed red, and the vehicle applied the brakes on its own. I had this feature on my 2015 Tahoe (which I used a few times) and it seems the 2017 allows a shorter distance between cars before automatically applying the brakes.

 

[NowZoomer]

My 2017 Denali XL has ACC and collision avoidance braking. I was driving on the freeway the other day and a vehicle cut me off...before I could react and apply the brake, the seat vibrated, the HUD flashed red, and the vehicle applied the brakes on its own. I had this feature on my 2015 Tahoe (which I used a few times) and it seems the 2017 allows a shorter distance between cars before automatically applying the brakes.

Did you have cruise on? If not, thanks for confirming that the truck will indeed emergency brake, if needed

 

[larryo]

It's very confusing since GMC limits it based on trim

If you want adaptive cruise, you need a SLT (which will front brake only when cruise is on)

If you want complete front braking, you need a Denali

SLE $545 forward collision alert
forces you to add

• IntelliBeam headlamps
• Lane Keep Assist
• Enhanced Driver Alert Package

SLT $995 Adaptive Cruise Control with Front Automatic Braking

Denali $1,420 Automatic Collision Preparation inc Intelligent Brake Assist and Collision Avoidance Braking
forces you to add

• HUD
• Adaptive Cruise Control with Front Automatic Braking

If you look at the order guide, what you describe above is correct. In fact, the 2016 order guide, RPO UGN ( Automatic Collision Preparation inc Intelligent Brake Assist and Collision Avoidance Braking) is only available on the Denali (and is part of the Y66 Adaptive Cruise Control Option).

However, on the Service Parts Identification sticker in the glove box of my 2016 SLT, both Y66 and UGN (along with UEU, Forward Collision Alert) are listed as being on my vehicle.

So in my mind, I should have front braking regardless if cruise is engaged or not. If a Denali and an SLT have the same options, they should function the same way.

Having said all of this, I have only experienced automatic braking while cruise control is engaged. Also, the Forward Collision Alert has only worked when cruise control is engaged.
I have not had a collision alert or had the green vehicle ahead indicator turn amber when cruise control was off. This I believe is a malfunction within my vehicle.

I have been in contact with GMC Customer Support and so far they have been unable, or unwilling to give me a straight answer on how the system is supposed to work. I think the delay is, the people that deal directly with the public do not have the technical knowledge to answer questions like this. I am hoping, that eventually they will put me in contact with a technical person. At lest I have an open case number and a phone number that I can call to insist on an answer.

 

[WCDENALI]

Did you have cruise on? If not, thanks for confirming that the truck will indeed emergency brake, if needed

No I did not have cruise control on.

 

[AngelXL]

I've had my 2016 Yukon XL for almost a month now.
It came equipped with Forward Collision Alert (FCA), Active Cruise Control (ACC) and forward automatic braking.
The automatic braking works fine when ACC is engaged but does not seem to work if ACC is not engaged.
In addition, when ACC is engaged, the little green car icon (in FCA) changes to amber (like it is supposed to) as I get close to a followed vehicle, but NEVER changes color if ACC is not engaged. I can get right up to the rear bumper of the vehicle in front of me and the icon remains green.
I've read and re-read the owners manual and I find nothing that says that FCA and automatic braking only works when ACC is active.
Has anyone else experienced a similar issue?
Thanks

Larryo, when you get a chance can you upload a picture of the sticker that's on your glove box.
I know I'm not going crazy... my wife saw this time.
Red alert came on and the brake took over not a hard stop but like slowly slowing down till I hit the gas. Everything was ok I was just passing someone on the right. According to my glove box sticker I only have FCA.

 

[AngelXL]

My experience is like WCDENALI.
I Definitely know I'm not going crazy... my wife saw this time. (I was doing 35-40)
Red alert came on and the brake took over not a hard stop but like slowly slowing down till I hit the gas. Everything was ok I was just passing someone on the right. According to my glove box sticker I only have FCA.

 

[larryo]

Larryo, when you get a chance can you upload a picture of the sticker that's on your glove box.
I know I'm not going crazy... my wife saw this time.
Red alert came on and the brake took over not a hard stop but like slowly slowing down till I hit the gas. Everything was ok I was just passing someone on the right. According to my glove box sticker I only have FCA.

Here ya go.

 

[AngelXL]

Very weird. I wonder if is some kind of software update like somebody else mentioned.
Seen the truck is one of the late production date on August.
Thanks Larryo.