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I was driving and all of the sudden I was unable to accelerate. The console chimed and said required action shift to park. I stopped the car (luckily I was in a place to do so since I was unable to accelerate). The car then would do nothing. The engine light was on, the car had power (I had 100% battery and 60% gas left. I had been driving in hold mode. I turned it off and back on and put it into drive and it would not move. I let is set awhile and it finally let me drive but the engine light stayed on. Onstar said something like that the hybrid propulsion system failed, and something that had to be serviced immediately and another thing within 7 days. This car is less than a week old and 200 total miles. This trip was 60 miles and the first long trip where I used gas. This is extremely disappointing but I am most concerned of the safety hazard... This is as bad as brakes going out to me, all of the sudden without warning you can't accelerate.. thank goodness I was in a place I could just pull off the road.
 

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Your car apparently has no model year?
 

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Your car apparently has no model year?
I applaud your efforts to get posters to include MY and mileage in their posts. In this case, we have to resort to deduction: "less than a week old and 200 total miles" posted in Generation 2 Forum leads me to believe that it is either a 2016 or a 2017 Volt. Having these data explicitly stated by OPs make responding to problems more meaningful for all.
 

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When someone posts a problem seeking help, the make, model, year and mileage of their car should not be a guessing game. Remember Click and Clack the Tappet Brothers radio show? They always wanted those and they had good reason to.
 

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Not trying to pile on but call onstar back and get the trouble codes. "Shift to park" will show for a variety of reasons, more effect than cause.
Sign in to onstar.com and see if there are any outstanding recalls. There has been at least one that might help (16055).
 

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If you have the means, snap and post a photo of the 12v battery (mainly want to the terminals are aligned) under the hatch floor...
 

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This is the picture of what you Don't want to see. The cable to the B+ terminal is crooked, and may not have been seated properly, causing intermittent connection.

I thought this was under the hood in the fuse box area? (I don't have a g2). But lots of us are following how GM handles these issues.

2017_Volt_Bad_battery_terminal position.jpg
 

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This is the picture of what you Don't want to see. The cable to the B+ terminal is crooked, and may not have been seated properly, causing intermittent connection.

I thought this was under the hood in the fuse box area? (I don't have a g2). But lots of us are following how GM handles these issues.

View attachment 129441
Yes, edk is correct, this is the picture of the incorrect cable positioning. And yes, it's under the hood, on the right side, not the 12V under the carpet in the rear hatch.

I can tell you that if your build date is August 2016 or later, GM was already well aware of this problem by then and took measures to correct it. My guess is that the OP build date is earlier. OP, please post the last 6 digits of your VIN as well if you don't know how to find your build date (it's on a placard you can see when you open your driver door, the placard sits right behind where the front and back doors meet).
 
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