Sorry to hear about this. Yeah, looking at the 12v would be a good idea. You can get all kinds of odd behaviors when the 12v goes south. Might also explain the fix -- warm environment when getting serviced allows the 12v to function but when it gets cold it fails. Also might be a loose connection or something similar as well.
Almost Dead Volt
i have a MY2016 Volt Premier
on Monday while driving towards the freeway the DIC and MyLink displays flickered between bright and dark then the DIC blanked out and when it returned it showed the background GFX (Classic Enhanced) but none of the info parts were updating(speed, Electric Charge, Fuel) and the Power Loss/Gain on the right side froze and gave at least 10 different "Service..." messages
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tried restarting the car once at a light and it wouldn't do so but since everything else worked fine i decided to drive it to the Dealer and have them look at it
when i got out at the dealer it wouldn't turn off completely and the headlights stayed on
when the scheduler went out to look at it it had finally turned off and now wouldn't turn on
later that day after getting a loaner and going to work the informed me the had needed to reprogram the HVAC and that fixed it
on Tuesday all was fine
on Tuesday night we got almost a foot of snow(rare for us Portlanders to get any snow) and on Wednesday morning it wouldn't start again with almost the same symptoms
i cannot get it to start by using the start button
i have to use the Remote Start sequence on the fob
this time there is a little icon of a wrench(Service Electric Parking Brake Light) that cycles with what looks like a headlight and an arrow that points left and right
due to all the snow tow trucks are hard to find and im trying to see if there is some way i can get this at least temporarily fixed so i might drive it to the dealer myself
on Monday while driving towards the freeway the DIC and MyLink displays flickered between bright and dark then the DIC blanked out and when it returned it showed the background GFX (Classic Enhanced) but none of the info parts were updating(speed, Electric Charge, Fuel) and the Power Loss/Gain on the right side froze and gave at least 10 different "Service..." messages
tried restarting the car once at a light and it wouldn't do so but since everything else worked fine i decided to drive it to the Dealer and have them look at it
when i got out at the dealer it wouldn't turn off completely and the headlights stayed on
when the scheduler went out to look at it it had finally turned off and now wouldn't turn on
later that day after getting a loaner and going to work the informed me the had needed to reprogram the HVAC and that fixed it
on Tuesday all was fine
on Tuesday night we got almost a foot of snow(rare for us Portlanders to get any snow) and on Wednesday morning it wouldn't start again with almost the same symptoms
i cannot get it to start by using the start button
i have to use the Remote Start sequence on the fob
this time there is a little icon of a wrench(Service Electric Parking Brake Light) that cycles with what looks like a headlight and an arrow that points left and right
due to all the snow tow trucks are hard to find and im trying to see if there is some way i can get this at least temporarily fixed so i might drive it to the dealer myself
