What Option do I want? Why not both?

1784 Views 13 Replies 10 Participants Last post by Cobalt60Volt, Oct 16, 2017

Nuclearboy

Discussion Starter · Oct 13, 2017

I am looking at 2018 Volts on the Chevrolet website. I like to research a little before talking to the dealer because now and then they are misinformed and don't get me the straight answer I need.

When I build and price under saftey 2, it lists 2 options. See descriptions below. It only allows me to select one. If I try to select the other one too, the first is un-selected.

I would like to have both of these features. What do I not understand here.

Thanks for any advice from those who have a Gen 2 or understand the options.

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Low Speed Forward Automatic Braking

If the vehicle is traveling at a low speed and the system detects that a front-end collision situation is imminent while following a detected vehicle and the driver has not already applied the brakes, the system automatically applies brakes to help reduce the collision’s severity1
The system may even help avoid the collision at very low speeds
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or

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Forward Automatic Braking

If the system detects that a front-end collision situation is imminent while following a detected vehicle, and the driver has not already applied the brakes, the system automatically applies brakes to help reduce the collision’s severity1
The system may even help avoid the collision at very low speeds
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Nuclearboy

Discussion Starter · #6 · Oct 15, 2017

Thanks for all the help with this. I am continuing to research and will be visiting a dealer sometime soon. Hoping to get a 2018 with the Costco deal added on this year.

So the way I am understanding this now, we can outfit the car with low speed automatic braking and also ACC.

The low speed automatic braking just works I assume on trying to avoid running into things when you are going less than 37 mph. Above 37mph does it even try to stop or is it just off.

The ACC feature tries to slow down when it is turned on and following a "tracked" vehicle in front of you. Does it try to slow down in any other cases? Can it track a car that all of a sudden pulls out in front of you?

These systems are poorly explained IMO.

Nothing against GM, in general here. I went to a honda (sense system) and a suburu dealer (eye sight system) and got many conflicting answers on what their systems actually do too. It seems the manufactures are intentionally making hte specifications.
vague.

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Nuclearboy

Discussion Starter · #8 · Oct 15, 2017

"This is ALSO not my understanding. Where did "37 MPH" come from? My understanding is that the low-speed system is specifically for that: low speed. It uses the the lane-keeping camera plus the ultrasonic parking sensors to keep you from running into things like walls when you're getting into parking spaces or hitting tricycles you haven't checked for. This is in addition to the beeping as you approach things, and all it does is slap on the brakes when the parking beeps would normally just become a solid tone. "

I got the 37 mph. Actually 5-37mph starting at the 1:18 min mark in this video. Should reduce speed for or eliminate collisions too below 37. If not working below 5mph, sounds like you can hit the bike in the driveway or the wall in the garage or parking space.

https://www.youtube.com/watch?time_continue=78&v=-nWP8nqVf18

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Nuclearboy

Discussion Starter · #9 · Oct 15, 2017 (Edited)

"If you're driving at 50 and approaching a thing at 50, it assumes the thing is a fixed object and not moving, and you as driver will avoid it."

>> The car has auto braking but would let you drive into a wall? Pretty sad if true.

"This is not my understanding. My understanding is that low-speed and high-speed conflict, and you MUST TAKE high-speed auto brake to get ACC."

>> If you want ACC, you cannot have the low speed braking which would reduce the most fender benders. This too is sad if true.

Wish we could get the actual specifications of these systems.

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Nuclearboy

Discussion Starter · #11 · Oct 15, 2017

sosmerc said:
I really enjoy the ACC on my Volt, but there is one thing about it that you need to be aware of. When a vehicle in front of you slows down as in about to make either a left or right turn, the Volt slows down and may continue to slow down even more than you are anticipating even though the car is clearly "out of your way". The ACC radar still "sees" that car as being in front of you. Anyone following behind you may end up getting way too close to you because they haven't expected you to continue to slow down. I guess what I am trying to say is, be prepared to "take over" and accelerate away from the turning car in front as soon as you have safe clearance. This may avoid a rear ender that would not be good.

Thanks for the tip. I guess non of these systems are perfect yet. Driving a 2016 Civic with Honda sense about a month ago, it too hit the brakes hard on me while I was on the highway with no real danger in front of me. No one behind to rear end me but it did make me wonder about these automatic systems and how they may cause a few problems (while hopefully solving some other problems).

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