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  1. Problems, Driver Warnings or DTCs - Gen 2 Volt
    Weird story, and I'm looking for extra advice on this. I'll put as much detail as I can, hoping that an expert can identify the root cause. Quick synopsis: roadside assistance was unable to get car to start, though console lit up when connected to jumper battery. Eventually had to tow. Once at...
  2. Use, Care & Maintenance - Gen 1 Chevy Volt
    Hi, I'm Bryan and I just joined this forum! So I have a bit of a mystery - we have a Chevy Volt (2014 model) where the 12v battery seemed to become discharged one evening. But then after that it's been perfectly fine. The details go like this: We drove for a camping trip about 2 hours from...
  3. Problems, Driver Warnings or DTCs - Gen 1 Volt
    From my research it seems like the symptoms are very similar and could be confused for one another, and I wasn't able to find a clear difference online. What would be some major things to differentiate between the two? My issues if you'd like to read more: 2015, 92000 miles My symptoms: -Car...
  4. Use, Care & Maintenance - Gen 2 Chevy Volt
    Have been getting occasional "service parking brake" messages, which make ACC temporarily unavailable (as does rainy days, fog, full moons, etc, but I digress) Turning it off and back on clears the message. Parking brake sounds like it works when I test it. The really odd thing is, when this...
  5. Problems, Driver Warnings or DTCs - Gen 1 Volt
    We have a 2012 Volt (non-Premium) edition that has been wonderful, but the service experience at several Florida dealerships has been scandalously inept to downright engaging in a fundraiser. In each of these cases, 15 minutes with A+ Certified Mechanic Google got me to the solution while I was...
  6. Generation 1 Chevy Volt (2011-2015)
    Hello, I came across this forum seeking advise after being told by the dealer that my main battery needs replaced -it failed to transition to engine mode once I depleted battery power while driving. Now I'm out of warranty, my car only has 40k miles on it and the cost is $4000 plus tax to...
  7. Problems, Driver Warnings or DTCs - Gen 1 Volt
    I am experiencing crazy symptoms in my 2014 Chevrolet Volt. As I was stopped at a traffic light, my vehicle completely turned off. I react to this buy trying to hit the blue power button and see the error message "Service Theft Deterrent System" but the car would not move. I end up finding...
  8. Use, Care & Maintenance - Gen 1 Chevy Volt
    Quick Answers: What battery does the Gen 1 (2011-2015), need? AGM BCI Group 47, GENERAL MOTORS OE Part Number: 88864595 How do I replace the battery? See general info below. Pros and Cons of AGM Batteries? Pro: Longevity, Safety. Con: Cost Does the battery have vent/overflow hose connected to...
  9. Problems, Driver Warnings or DTCs - Gen 1 Volt
    12V battery replaced after "Initializing....Please wait to shift" DIC message I thought I would post my experience dealing with the "Initializing....Please wait to shift" DIC message, in case it helps anyone in the future. I found other threads, but it seemed best to post my own rather than...
  10. Generation 1 Chevy Volt (2011-2015)
    I understand that when the 12v battery fails, I won't be able to start my Volt. Also, unlike with regular ICE cars I probably won't notice when the 12v battery is getting weak - when the battery goes, it may be suddenly and at an inopportune time. Does anyone have recommendations for a portable...
  11. Li-Ion Battery, Charging, Mgmt System - Chevy Volt
    So, folks, help me out here - I'm just a simple-minded PhD in Electrical Engineering, but there must be something I'm missing. The Volt never lets the main (Lithium) battery go below 15% or so (I don't know the precise number, so I'm making it up here). It's about 360V (nominal). It's...
  12. Problems, Driver Warnings or DTCs - Gen 1 Volt
    We have seen "gremlins" of various kinds being caused by a loose connection to the 12V battery or to its fuse block. Perhaps a dying battery could do this as well. The symptoms of loose connections can range from the dash and center console displays freezing, flashing, going "crazy", to...
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