Since I am seeing more and more issues that seem to stem from a low voltage condition of the 12 volt battery and it is replaced (or will be) I thought I would establish this tracking thread. I have stood on the sidelines (via other forums) and watched as several other EV's went through the teething issue of having either a faulty 12 volt battery, or a more complicated issue of a poor recharging protocol, or perhaps even a faulty component that impacted 12 volt recharging. If you have had your's replaced, or in the future need a replacement 12 volt battery please share that experience here and be sure to include how your tech. wrote up the problem and what was done to remedy it.It will be interesting to see what we discover.
Chip
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121 Posts
This was first noted on this forum last November: https://www.blazerevforum.com/threa...v-12-volt-battery-drain.557/?post_id=5034&nested_view=1&sortby=oldest#post-5034
Seems to me that GM should have done a recall, but what do I know....
Seems to me that GM should have done a recall, but what do I know....
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121 Posts
I finally got my Service Invoice sent to me from the dealer (for some reason they couldn't print it out when I picked up the car because the Service Manager was on vacation...????). Anyway, they did not replace our battery. Recharged it, reprogrammed the batter energy control module, the brake system control module, the serial data gateway module....
Not sure if all those reprogrammed modules were related to the 12v battery draining, and I'm less than pleased that they just recharged a battery that had gone flat dead. We shall see
Waiting for the next gremlin to pop up.... still working with GM to buy back. Went to Hyundai to look at a Inoique 5 and they would only give us $30k on trade....
Not sure if all those reprogrammed modules were related to the 12v battery draining, and I'm less than pleased that they just recharged a battery that had gone flat dead. We shall see
Waiting for the next gremlin to pop up.... still working with GM to buy back. Went to Hyundai to look at a Inoique 5 and they would only give us $30k on trade....
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121 Posts
Thanks... good advice and will follow the Ioniq Forum for awhile. A quick perusal and I didn't see complaints about fatal failures... Our Blazer has been in the shop 47 out of the 240 days we have owned it..... the last time it died from the 12v battery issue and had to be towed.... frankly, part of our issue is an incompetent local dealer and GM... neither seem to be able to get their act together.
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