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Discussion Starter #1
It's been just 2 weeks since bought my Volt.
in this morning, it started to refuse cruise control.
I don't know why, or what's the problem.
It just deactivated and make beep sounds.
I tried several times during on my way to work but it does not work any more.
WHAT THE ****!!! it's been just 2 weeks.!!

and the other problem is dealer shop is too far away from my home.
There is another dealer shop in near my home, anyone know that I can use that dealer shop?

Toyota ( my first vehicle ) was available about that situation.
 

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Make sure the camera on the windshield is not blocked by dirt. The camera is just in front of the rear view mirror mounted on the windshield and if the windshield is dirty, it can block the camera's view which is used as part of the cruise control.
 

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There's generally no obligation to have the car serviced at the same dealer where you bought it, but you'd want to give them a call first.
 

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Sometimes the ACC freaks out while you are trying to reset it while driving. Try turning the ACC off completely (not just deactivated), then get back up to speed, turn the system on again, and activate it at your desired speed. I find that frequently fixes the problem.

I will take this opportunity to vent a little about the ACC. GM's system is full-stop/start which is great. But the range of the detector is really short compared to other manufacturers. If you are coming up on slow traffic, the system gets way to close for my comfort before it senses the slowed vehicles and then reacts. It also stops way too close to the vehicle ahead, regardless of the gap setting. It's unsettling to come within a foot of someone's bumper before full stop. There is no room for error if the system should malfunction. I don't even stop that close to people on my own.
 

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Discussion Starter #6
Thanks guys.

I tried fully off ACC already. it didn't work.
And there is nothing on radar area, but windshield camera, this should be checked. will do.

And break pedal issue on the other thread, oh my god... will try pulling break pedal, and hard hitting break.

Anyway, I'm loosing my trust to the Chevy.
 

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Sometimes, I apply brake by stepping on it very hard, and then suddenly releasing it, then the ACC works again.

Sometimes I just put my foot under the brake pedal and pull it up, then activate the ACC and it works.

Sometimes, the parking brakes says it needed servicing, and could not turn on the ACC, so I pull to the side, turn off the car, activate parking brake, then deactivate it and turn on the car, and then ACC works.

Aside from cleaning the glass in front of the camera, and cleaning the bow tie on the grill, I also use baby wipes towel and clean the radar or sonar sensors all around the car, you know those tiny round things on the bumpers.
 

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I think GM was super conservative in how they implement the ACC to reduce a lot of potential accidents that they would be blamed for. It is just part of the pains of deploying new technology.

Always remember not to fully trust the ACC to pull you through in every cases. It is a software that processes sensors. Software have bugs and sensors could fail and it is your life on the line.
 

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I think GM was super conservative in how they implement the ACC to reduce a lot of potential accidents that they would be blamed for. It is just part of the pains of deploying new technology.

Always remember not to fully trust the ACC to pull you through in every cases. It is a software that processes sensors. Software have bugs and sensors could fail and it is your life on the line.
I guess you never plan on getting in a self driving vehicle. It's all software and sensors. And just like software has bugs, so does hardware -- like your brakes for that matter. There is nothing fool proof, but the system should be better than it is. I've used ACC from Volvo, MB, Chrysler, Acrua, and BMW. They are far superior. On the flip side, Mazda has ACC that isn't even full-stop. That's a first generation system.
 

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Discussion Starter #10
Sometimes the ACC freaks out while you are trying to reset it while driving. Try turning the ACC off completely (not just deactivated), then get back up to speed, turn the system on again, and activate it at your desired speed. I find that frequently fixes the problem.

I will take this opportunity to vent a little about the ACC. GM's system is full-stop/start which is great. But the range of the detector is really short compared to other manufacturers. If you are coming up on slow traffic, the system gets way to close for my comfort before it senses the slowed vehicles and then reacts. It also stops way too close to the vehicle ahead, regardless of the gap setting. It's unsettling to come within a foot of someone's bumper before full stop. There is no room for error if the system should malfunction. I don't even stop that close to people on my own.
I have experienced totally same thing what you are talking about.
I've learned that I should not activate acc to the fully stopped vehicle ahead.
barely avoided crash on my second day and third day.
 

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I have experienced totally same thing what you are talking about.
I've learned that I should not activate acc to the fully stopped vehicle ahead.
barely avoided crash on my second day and third day.
Even worse on this car is that the ACC uses the regen braking to start. So if/when you take over with the real brakes the car will surge forward for a moment before the real brakes kick in.
 

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I guess you never plan on getting in a self driving vehicle. It's all software and sensors. And just like software has bugs, so does hardware -- like your brakes for that matter. There is nothing fool proof, but the system should be better than it is. I've used ACC from Volvo, MB, Chrysler, Acrua, and BMW. They are far superior. On the flip side, Mazda has ACC that isn't even full-stop. That's a first generation system.

Especially with Tesla's. Remember the fatalities. I wouldn't be the sacrificial eager beaver statistics. I will get fully self-driving cars, but not the first generation. Will watch out for their performance first then upgrade to it later.
 

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Discussion Starter #13
Sometimes, I apply brake by stepping on it very hard, and then suddenly releasing it, then the ACC works again.

Sometimes I just put my foot under the brake pedal and pull it up, then activate the ACC and it works.

Sometimes, the parking brakes says it needed servicing, and could not turn on the ACC, so I pull to the side, turn off the car, activate parking brake, then deactivate it and turn on the car, and then ACC works.

Aside from cleaning the glass in front of the camera, and cleaning the bow tie on the grill, I also use baby wipes towel and clean the radar or sonar sensors all around the car, you know those tiny round things on the bumpers.
wow these are real know-how stuff.
Will try those things.

and reputation for chevy in my mind is reduced again
 

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Even worse on this car is that the ACC uses the regen braking to start. So if/when you take over with the real brakes the car will surge forward for a moment before the real brakes kick in.
Not a problem with me anymore. Based on experience, you should be able to tune how hard you should initally apply brake when you take over before coming gently to a stop.
 

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wow these are real know-how stuff.
Will try those things.
I pass by swamp areas around dusk, and when there's a big hatch, those insects will get smashed in front of the sensors! So I know the cleaning drill very well and I have a box of baby wipes handy.
 

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Especially with Tesla's. Remember the fatalities. I wouldn't be the sacrificial eager beaver statistics. I will get fully self-driving cars, but not the first generation. Will watch out for their performance first then upgrade to it later.
I don't disagree with you there. But ACC has been around for more than 10 years. These systems should be pretty solid by now.
 

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One very important thing that I have noticed during the heat wave... When you parked out in the sun and the ambient air is more than 100 deg F, sometimes the ACC won't just work no matter what you do until the car's windshield and cabin interior has cooled down.
 

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Not a problem with me anymore. Based on experience, you should be able to tune how hard you should initally apply brake when you take over before coming gently to a stop.
Yes, but that experience only comes after a few scary situations.
 

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I don't disagree with you there. But ACC has been around for more than 10 years. These systems should be pretty solid by now.
Yup! But it is newly implemented on the Volt. Just like mentioned earlier, perhaps more and robust sensors are needed as well.
 

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Yup! But it is newly implemented on the Volt. Just like mentioned earlier, perhaps more and robust sensors are needed as well.
It's new on the Volt, but the systems and sensors are off the shelf. There are various vendors that supply these things -- Chevy doesn't make them. I might have bought an argument about integration with regen braking, but Tesla has a VERY advanced system that has been using regen for years.
 
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