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12v battery died in my 2012 so just replaced it w/ another ACDelco AGM, and now my clock won't reset!
My GPS failed about 6mos ago and Chevy told me that since the GPS is tied to the radio, I'd have to spend $1500 for a new one. Not about to do that since I can use my phone GPS and everything else works, however, I'm wondering if the clock is the next thing to fail OR is the clock not resetting simply due to the fact that I just replaced the battery and need to "reboot"? I pulled into the dealership today just to ask about the clock and they said they'd want the car to check for possible small drainage to the battery causing the clock to continue to go back to 12:00.
Any thoughts out there?
 

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What have you done to try to reset the clock? On the 2012s there is a 'TP' button on the console that you use to set the time. It does not reset automatically via GPS.
 

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removing and replacing the battery essentially did "reboot" everything. However, is it not setting at all, or losing the setting? If it's the latter I would suggest looking for a blown fuse. The two fuse blocks on either side of the dash seem to be for most of the interior. On past cars there were two connections a radio would make, one to the accessory portion of the key which was switched, and another, usually to the cigarette lighter which was "always on" to retain clock and memory functions. I only see one fuse for the radio, which I know is always available by just pressing the "power" button on the radio so the Volt may have done away with the need for a second power connection however it never hurts to check yourself if you can, especially since a diagnostic fee is not exactly small change.
 

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I'll be the scooge and ask if you have read your Owner's Manual with regard to the clock and how to set the time. RTFM???
 

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If the TP button does not set it, try rebooting again by disconnecting the battery again. If that does not fix it and you don't want to spend $1500 on a new radio, then you will have to live with it. I don't think it is essential unless you need delayed charging.
 

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Did you ever get this fixed?

I bought a used 2014, love it so far, but can't get the clock or calendar to set. I've read the owner's manual and watched youtube videos. Doesn't stay set when I navigate away from the clock set screen.


TIA

Homer
 

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Having same issue with 2012 Volt. Replaced 12V battery. Now clock will not stay set. Have no problem setting the clock on the config screen. It keeps time until ignition is shut off then next time ignition is turned on, clock has reset to 12:00. Cannot find anything in manual or online about how to fix this. Anyone found anything since KDerrig original post in 2017?
BTW My navigation also stopped working about 1.5 years ago. But did not affect radio or anything else. Was told by dealer it is the OnStar unit. Replacement cost $600-- which I thought was ridiculous, but is nothing compared to $1500!
 

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Is there by any chance a fuse that may have blown for continuous 12V to keep the clock set? Is there anything that doesn't work when the car is off that should? horn/brake lights, etc?
 
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