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My Cybertruck will not start / power on

Cyber1qhorsey

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I'm with you Cybercor! Glad you knew where the manual rip cord is! Has Tesla tech support come to the rescue!?
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Art138

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So you wondered what would happen, thus, you don't know what would happen, yet, you now know it won't coast and won't steer? I guess it has already happened to you. And in your response, my guess with physics and inertia, it would still coast some and yea, you MAY NOT be able to pull to the side of the road and you still call for help.

You're welcome

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The guy who wrote The Common Sense Guide to Living in the Real World
Happened to me on my 18 M3…..luckily I had arrived home. Steering module sensor went dead, I lift a lot weights and still could not turn the steering wheel. I always wondered what would happen on the road. Ended up they changed both the sensor and 12V battery.
 

Sjohnson20

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Mightbe the known issue for Tesla.

On certain Cybertrucks, the ancillary bay electrical harness might not be properly secured to the Power Conversion System (PCS2), which could potentially cause the loss of Mid Voltage (MV) power. Replace the ancillary bay electrical harness.
Crossing my fingers that mine doesn't have this issue.
 


SentinelOne

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How do you know the new parts will be replace the old ones in the build after 1/19?
It's common sense. They know they have a faulty part and have new parts designed and are fixing them on any existing cars that have the issue eg the service bulletin....so why wouldn't they cutover new mfg and not perpetuate a known problem? I put 1/19 as that's the date of the service bulletin and when they had new parts specified. So no guarantee but high probability.
 

Crissa

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Not sure why you keep ignoring the fact that the door button wasn't working either, that's confirmation there's no power. And now OP has posted further confirming they had to jump it to open the frunk.
That's confirmation that the system is locked down or out of power - I don't think a Tesla that's locked will let the doors open via electronic buttons if it thinks it's supposed to be locked.

It's interesting that that door has a mechanical lock, though, that he was was able to close (and lock) the door without power!

Steering doesn't work when the car loses power, car brakes when you let off the accelerator whereas a gas car will still coast and allow you to steer captain dummy.
There are redundant systems to maintain steering and braking during various power failure scenarios.

-Crissa
 


C T Rick

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That's confirmation that the system is locked down or out of power - I don't think a Tesla that's locked will let the doors open via electronic buttons if it thinks it's supposed to be locked.

It's interesting that that door has a mechanical lock, though, that he was was able to close (and lock) the door without power!


There are redundant systems to maintain steering and braking during various power failure scenarios.

-Crissa
If it's steer by wire and the wire being an electric signal, at what point will it still steer when all power is lost? Not from a drained battery, but more from a component failure or in this case a non responsive CT?

We've all move cars when they lost power steering and power brakes, but they're still mechanical and just require more force. Is there anything to do if the power / computer just dies/ crashes, or does the truck also crash?

Semis with air brakes uses the air to release the brakes. Not apply them. But it also has reserve air in the tanks. Power brakes in a normal vehicle has some reserve vacuum to assist with the power brakes.. and power steering is not bad if you're rolling without power. More difficult if you're sitting still which would not be as much of an issue.

Rick
 
 








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