Cybertruck bricked

[MyOtherTruck]

Back with a semi-update.

Yes to clarify, I charged the frunk and it opened; appears a clip broke off. Perhaps the plastic is a bit brittle in negative 1 degrees temps...?

I got the driver-side door open. Took a while and the screen turned on. Tons of electrical errors came up (infinite errors scroll)

I had a tow guy come but he could not take the truck away. The electrical issues are preventing the truck from entering into "TOW MODE".

We tried everything in terms of charging, etc to get the TOW MODE button to activate but no go. Also, the truck is sitting on snow and ice isn't helping his confidence. The tow truck left, and he seems to be thinking about how to solve it / if he can do it.

I'm pretty patient at this point. I am 24 hours in. Last night's tow truck never came. This morning's truck didn't show either. Missed a ski day with my kids, sadly. But it is what it is and honestly not surprised to experience this once or twice.

But I am getting the feeling the Cybertruck isn't mean for the cold and snow.

To cap things off, the door won't power the window totally closed so its sitting down an inch or two! Fortunately, no snow in forecast until Tuesday :-|

Merry Christmas!

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[RonSol]

Good luck. You seem to have the right attitude about this.

 

[CYBROSKI]

I had the exact same issue. Here are some screenshots of the fix required for my truck. Took about 10 days at the service center. The good part is I got the new wiper motor part number and sail appliqués on the top side of the truck bed on the same visit.

 

[Coaly]

Is there a way to read the 48 low voltage battery voltage on screen?

Did the tow truck driver have a way to apply 48 volts to the battery or charge it?

if this was a ICE vehicle, first thing would be open hood, check battery voltage and jump or apply correct voltage to it.

I see no reason why not to treat this the same, but that’s coming from a retired mechanic.

 

[Kevin Burns]

Cyber truck, 40% charge is not responsive to me. App won’t unlock it, key cards aren’t working. Stuck on a snowy driveway Truck doesn’t seem to react in anyway. Earlier the car had a message when I was getting out that “electrical system unable to support all features”. Yet it has 40% charge.


Any ideas? I tried honking the horn etc and nothing works at all. I tried entering in rear doors, passenger side, pressing the charging port button - nada. It is very cold at the moment but it drove fine today.


Could the battery deplete but not adjust the charge on app / screen? Trying to contact Tesla now.

I make an effort to NEVER discharge below 50%

 

[MyOtherTruck]

I make an effort to NEVER discharge below 50%

That’s same for me. However I have to drive mine a bunch and it depletes. It started at 78% and after a drive in mountains back and fourth, I had to park it at 40%. But then it never started again and all these errors began. Shame.

 

[Crissa]

Is there a way to read the 48 low voltage battery voltage on screen?

Did the tow truck driver have a way to apply 48 volts to the battery or charge it?

if this was a ICE vehicle, first thing would be open hood, check battery voltage and jump or apply correct voltage to it.

I see no reason why not to treat this the same, but that’s coming from a retired mechanic.

There are multiple voltages on the system; you don't want to put a charging voltage for the 48 onto the 12v bus!

But aside from that, yes.

I make an effort to NEVER discharge below 50%

This would be irrelevant to the DCDC harness failing.

And basically means never using half your truck. (Which will mask or cause damage to systems designed to be used.)

-Crissa

 

[mongo]

There are multiple voltages on the system; you don't want to put a charging voltage for the 48 onto the 12v bus!

But aside from that, yes.

Cybertruck jump post automatically configures for 12V or 28-48V jump pack voltage.

 

[Crissa]

Cybertruck jump post automatically configures for 12V or 28-48V jump pack voltage.

I wonder if that's the part that's failing, though?

-Crissa

 

[mongo]

We tried everything in terms of charging, etc to get the TOW MODE button to activate but no go. Also, the truck is sitting on snow and ice isn't helping his confidence. The tow truck left, and he seems to be thinking about how to solve it / if he can do it.

Wheel dolly or
skid plates (or drag) and flatbed.

 

[mongo]

I wonder if that's the part that's failing, though?

-Crissa

I think the front left controller handles that conversion, not the PCS, but that's guesswork based on schematic.
Either way, the jump post probably shouldn't have a voltage on its own.

 

[Crissa]

I think the front left controller handles that conversion, not the PCS, but that's guesswork based on schematic.
Either way, the jump post probably shouldn't have a voltage on its own.

If that's true, you probably can't put a charging voltage through it.

-Crissa

 

[MyOtherTruck]

Bye bye CT

 

[mongo]

If that's true, you probably can't put a charging voltage through it.

-Crissa

Charging as in charge the 48V battery?
I'm fuzzy on how the system works if you apply 28-48V to the jump post. Seems like that would directly power the 48V bus, in which case the 48V battery can't get directly connected due to likely voltage imbalance. Unless the left controller then uses its DC-DC to feed the MV battery.
Otherwise, post to start 48V bus, wake HV pack and let PCS run 48V, disconnect jump pack, PCS sets voltage to match MV battery and MOSFET gets closed...

 

[Crissa]

Charging as in charge the 48V battery?
I'm fuzzy on how the system works if you apply 28-48V to the jump post. Seems like that would directly power the 48V bus, in which case the 48V battery can't get directly connected due to likely voltage imbalance. Unless the left controller then uses its DC-DC to feed the MV battery.
Otherwise, post to start 48V bus, wake HV pack and let PCS run 48V, disconnect jump pack, PCS sets voltage to match MV battery and MOSFET gets closed...

When in an error condition, you can't really count on anything, let alone having the throughput to not exceed the amp capacity of the bridging circuitry.

If it were on the same bus, that would be pretty certain you could put charging voltage through. But once it's not, how failing circuitry will react is difficult to guess without knowing the exact damage.

-Crissa

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