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Discussion Starter #1 (Edited by Moderator)
New Volt 2018 owner here. I've only had the car for 4 days. I set the amps to 12 for faster charging but it keeps bringing it back down to 8 amps (when I'm not looking). The house circuit can support it. Why does it keep doing that?

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How are you setting the 12 amps? I thought you could set it within the car interface and it would know that is your home (gps) charging preference. Did you happen to check the manual?
 

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New Volt 2018 owner here. I've only had the car for 4 days. I set the amps to 12 for faster charging but it keeps bringing it back down to 8 amps (when I'm not looking). The house circuit can support it. Why does it keep doing that?

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You need to read your Owner's Manual, learn how to set a Home Location for your Volt (setting the Home Location does not require the Volt to have the factory Navigation.)

You can also search the Forum for "Home Location" or "12 amp charge setting" to find the answer.
 

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In the online pdf (2017) it is on page 126-7 of the manual (127-8 if using pdf page number)
Excerpt:
See “Charge Limit Preference Selection” earlier in
this section. The charging customization settings will be the
saved home profile settings at home and Charge Immediate when away
from home.
Dashes display on the screen when GPS is unavailable.

Using Location Based Charging
To use location based charging, a home location must first be stored.
To store a home location:
1. From the Home screen, touch Settings.
2. Touch Vehicle.
3. Touch Energy.
4. Touch Location Based Charging.
5. Touch Set Home Location.
6. A pop-up will confirm the setting and the compass will be lit.
In addition, the Set Home Location will change to Update Home Location.
 

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When in doubt, do not read the owner's manual. :)

Seriously, the owner's manual goes into detail on charging things like this as well as other details on the car's operation and use. But as others have said, you need to set your home location, and then the 12A setting for that location. Just like setting radio presets and other user preferences (there are many).
 

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The rate automatically resets to 8A every time you start the car for safety reasons. The information above is the way to change that behavior. Also be aware that the home location work around needs to be reset periodically (after something like 6 months, I think).
 

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The rate automatically resets to 8A every time you start the car for safety reasons. The information above is the way to change that behavior. Also be aware that the home location work around needs to be reset periodically (after something like 6 months, I think).
It's every three months. Also, even with the Home Location set many times my car can't see the satellites so it doesn't automatically switch. Set your home location to be the street and you may have better luck.
 

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I assume you have your ans.. but just in case.
Set your home location first- infotainment- main radio-settings-vehicle. while sitting in your driveway. Now you can go in and set your charging to 12 Amp.. the car will remember this. so every time you plug in at your "home" location it will charge at 12A .

Seriously people this is a forum.. to help each other.. Why all the comments about read the manual! it's a simple questions from a new user!
 

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Because after we have patiently answered the same basic Volt owner questions a dozen times it gets old.
 

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Seriously people this is a forum.. to help each other.. Why all the comments about read the manual!
I think advising someone to read a book is good advice. We aren't able to tell you everything that's in the manual and we don't know your specific needs. Reading is Fun[damental]!
 

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I keep most of my TECh manuals in PDF format on computer and iPhone so the searching is very easy and with the information on a smartphone it is in my pocket when needed.

one thing to do is take a screen shot of special pages and keep in phone picture fav's

1. Fluids page
2. Tow page and how to jack up car for a tire change
3. Dash lights and what they mean
...
98 How to get out of park if dead battery
99 How to open back hatch if no power
100 onstar password and Gm-volt.com password :)
 
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