SlegMD

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Oh hi there northern neighbor. I need to get upstate more!
 


Outdoors

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Interesting. I got a new batttery pack, and mine was black gloss on bottom. Wonder when that change happened.
 

Pops

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The owner claims it when into a unmitigated roll downhill. Brakes and regen were ineffective. They turned into the wall to avoid going faster and off a cliff. I cant imagine what would cause both brakes and regen to fail at the same time.

Edit: They stated in video that in offroad mode regen is disabled. Is that true?
 

Black306

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The owner claims it when into a unmitigated roll downhill. Brakes and regen were ineffective. They turned into the wall to avoid going faster and off a cliff. I cant imagine what would cause both brakes and regen to fail at the same time.

Edit: They stated in video that in offroad mode regen is disabled. Is that true?
In off-road mode, regen can be set to Roll mode. So regen will only work down to ~5 mph. Below that, it rolls like in neutral.
 

Outdoors

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In off-road mode, regen can be set to Roll mode. So regen will only work down to ~5 mph. Below that, it rolls like in neutral.
Trail assist prevents the problem. Can't imagine that was on in this case. Really helps control the roll from pedal to brake or brake to pedal. That gap in time can create roll and slip if momentum gathers and tires can't overcome. Trail assist prevents that gap in time.

https://www.tesla.com/ownersmanual/cybertruck/en_us/GUID-9C572163-DB86-44AC-9842-AB6EE84D6441.html
 
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CyberGus

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Yeah, I was wondering HOW it lost its brakes
My brakes could have failed months ago, how would I know? lol

Agreed that total brake failure is unlikely, or at least no more likely than in any other vehicle; there's a brake booster, but it's a good-ol' fashioned hydraulic system that is not controlled by the computer nor electronics.

My best guess is that excess speed caused the overinflated tires to lose traction on the sandy surface, despite full braking.
 

SlegMD

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My assumption is he was going 20 instead of 5 and just started sliding.

I do have to admit though the retrieval of that truck was heinous work due to not being able to remain in neutral.
 
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CyberTrk

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I do have to admit though the retrieval of that truck was heinous work due to not being able to remain in neutral.
The truck was in Neutral using the tow mode, see below:

When looking at 55:40 for few seconds the rear left side wheel was rolling.
So the video shown that Tow mode was working and should stay active for 20 minutes.

Even at 55:33 it seems that the right wheel was able to spin a little bit?

Another solution used when the rear axial parking brake cannot be unlocked is to lift the vehicle from the back and keep the front wheels off the ground. But you need then to attach the steering wheel to avoid the wheels from turning left or right.



Note: It was painful to watch the truck been dragged with the rear right wheel locked.

Tesla Cybertruck Upside down Cybertruck recovery video -- "Cyber Truck Turns Into A Teeter Totter After Losing All Its Brakes!" CT Tow Mode not used
Sponsored

 
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