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Low speed or part of ACC? Some people have said that ACC doesn't work but I've never had an issue and I have a friend who says he thinks it saved him from an accident. It's tricky because the driver can over ride it by applying the brakes.
 

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It might have saved me from an idiot. Not sure because there was no impact. I put the it at 50/50 whether it 100% stopped a crash.

It has been very helpful in other situations that do not involved potentially lethal speeds (45mph+)
 

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My experience with both the ACC and auto braking have been very good.

The auto braking has had a couple of incidents on the highway, going over the crest of a hill with a road sign that it starts beeping, but didn't get to applying the brakes...a false positive.

I did have one instance where the auto-brake detected that 2 cars in front had stopped, but the car directly in front hadn't noticed yet (then he slammed on his brakes HARD). I was paying attention so it didn't save an accident, but I was impressed that the radar saw under the car in front of me.

I don't think it's 100% reliable (and I'm not about to test it), but then we humans are not either, so the combination is better than either system alone.

I LOVE the ACC, it works great.

My $0.02, John
 

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ACC and FAB are easy to test, I have and it works as advertised.

Low speed FAB is another story. I discovered I don't have the guts to let the FCA sound off and them allow the FAB to engage. I have always intervened first. But about two weeks ago I approached my garage a bit faster then usual and the garage door hadn't opened enough and BAMB the FCA goes off and the car came to what I would call a "controlled panic stop" in just a few feet.
 

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I have a "fully loaded" '17 Volt Premier w/Driver's Confidence 1 and 2 packages. but I can't for the life of me find the ACC or LSFAB features. I've read that ACC displaces the LSFAB, but I can't locate or enable either. Did someone forget to sell me the feature even though I was told i bought all available feature packages? Volt Support via OnStar and Chevy Sales are both stumped. Maybe someone can provide some insights on this. BTW, I do have Forward Collision Alert and Lane Keep Alert features. Hoping that ACC can be added with a software update. Thoughts?
 

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I have a "fully loaded" '17 Volt Premier w/Driver's Confidence 1 and 2 packages. but I can't for the life of me find the ACC or LSFAB features. I've read that ACC displaces the LSFAB, but I can't locate or enable either. Did someone forget to sell me the feature even though I was told i bought all available feature packages? Volt Support via OnStar and Chevy Sales are both stumped. Maybe someone can provide some insights on this. BTW, I do have Forward Collision Alert and Lane Keep Alert features. Hoping that ACC can be added with a software update. Thoughts?
ACC can't be added. It uses a radar unit in the grill. If the car wasn't made with it, it can't be added. If you post a pic of your grill, we can confirm/deny it has it. The controls should be on the steering wheel though.

Who told you it was fully loaded? The salesman or the window sticker?
 

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The front emblem will look like this if you have ACC.

 

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ACC and FAB are easy to test, I have and it works as advertised.

Low speed FAB is another story. I discovered I don't have the guts to let the FCA sound off and them allow the FAB to engage. I have always intervened first. But about two weeks ago I approached my garage a bit faster then usual and the garage door hadn't opened enough and BAMB the FCA goes off and the car came to what I would call a "controlled panic stop" in just a few feet.
I have a 2017 Volt with Adaptive Cruise Control. I have heard the warning beeps, and of course, I brake accordingly. Does FAB engage to bring the car to a stop even if Adaptive Cruise Control isn't on? I know if Adaptive Cruise Control is on, the car will slow down as needed, and even come to a complete stop, but of course I haven't tried testing the FAB...
 

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--- I brought this thread back to keep the subject matter together, hope that is the way to do it ---

Ok so I have a question about Forward Automatic Braking.

I don't have ACC, my VOLT was built in May on the 15th of 2016 and I bought it on Jun 1st of 2016.
I do have FORWARD COLLISION ALERT. NOW the Instruction Manual, the official book of instruction, says "If the vehicle has Forward Collision
Alert (FCA), it also has FAB, which includes Intelligent Brake Assist".

So I have seen the alert, the red flashing light on the windshield and alarms. I have not ever had the brakes come on in any of those instances.
Is there a turn on for this?

How close does the car have to be to the imminent target before the car decides it has to stop?
Knowing GM, I am pretty sure there are no user adjustments, it either works, or not. BUT.....

I don't believe I am brave enough to test this feature unless it can be done without crashing the car if it does not activate when it sees the TARGET in front.

Any input would be helpful.
 

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There are two types of auto braking, the low-speed version which is what you have, I think it works under 35mph, and the all-speed version which is what those folks with ACC have in their 2017s.

You could rig up a bed sheet and drive thru it to see if your car will stop.
 
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