this post was submitted on 16 Mar 2025
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Cyberstuck
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I know it’s fun to hate on the CyberTruck (absolutely has deserved it), but I’d bet money on this being a 12v battery issue, maybe from improper storage? Only reason I say this is that I have a Kia Soul EV and it gave me pretty much the exact same warning the other day and refused to start. Turned out the 12v battery was dead and that causes all kinds of weird stuff to happen to the electrical systems in the car. Especially considering that the entire electrical system of the CT is consolidated into one wiring harness.
Also, knowing Tesla, attempting to jump the 12v would probably void a warranty.
The cybertruck is a 48v car with a lithium ion battery, not SLA. It's not as likely to have a problem like a 12v SLA sitting too long.
It actually has 2 of them as well, altbough one is smallsr. Its a redundant back up for the steer by wire system in case 1 fails.
Many EVs do have a 12V. I have a Hyundai Ioniq 6 and they are known to have ICCU failures which cause issues that look exactly like this.
Edit: the cyber truck apparently doesn't have a 12V but rather a 48V system. I'm not sure if this same issue or a similar one is happening, or something else entirely.