Brake Malfunction; hit light pole

[kdn]

Still no diagram. Perhaps the CT was super cold and reg braking is very light. But to not brake ? Let’s see the diagram

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[Sjohnson20]

Weighing in here - there was another owner who took his CT up a concrete ledge and destroyed some landscaping at some fancy Hollywood hotel. Did anyone determine the root cause of that? Wondering if it was the same - the guy tried the brakes but it failed?

There was speculation about the driver/owner being intoxicated but nothing conclusive. Not sure what logs/data was sent to Tesla to analyze.

Most likely being unfamiliar with the new car. Could have also been drunk.

One of the restaurants I go to often had to close for awhile to remodel cause a lady hit the gas and drove her car through the front doors. Luckily nobody was hurt.

 

[kdn]

Back in 1991 I had a gas station next to my business. I called to see how things were going and my manager said we got a drive thru. Customer next door put his car in drive instead of reverse. Went right int the storage room area through a guardrail. Half the car was inside my place. 67,000 damage. Guy was 93 yrs old.

 

[DrPhyzx]

Seems like the well known brake vs accelerator mishap. I looked at the diagram on the parts catalog, not even sure HOW the brakes could fail 100%. The brake-assist motor would have to be going backwards fighting your input to neutralize the braking.

Nope. It only has to have lost power so that there is no assist: Loss of power to the vehicle would result in no regen and weak braking.

 

[DrPhyzx]

WHAT ?? ABOUT ?? NOT ?? STEERING ?? INTO ?? THE ?? POLE??? B??S

Not many critical thinkers here.

Hard to do if the truck lost power, which is a documented thing that has happened to others, and would explain everything else that the OP described.

 

[DrPhyzx]

Except that's not what he described:

He didn't say the car accelerated when he hit the brake, which is what would have happened if he actually hit the accelerator. What he subsequently described was increased brake pedal effort with weak braking response, which is exactly what would happen if the power brake boost system failed. Some people are trying so hard to create some scenario where components didn't fail when the described event fits those parameters rather well. Reduced regen fails to slow the vehicle as expected then when brakes were applied the response was also not what was expected. Ever hear the saying “When you hear hoofbeats, don't look for zebras,”?

EXACTLY.

I also don't understand why everyone is trying to concoct some crazy simultaneous multiple system failure as the alternate to operator error + conspiracy. There are multiple documented cases of CT completely losing power / shutting off. If that happened while driving down the road, regen and steering won't work and brakes will be very weak. If you have ever tried to brake a car with power off, there is a sense of "delay" like the OP describes as the brakes build pressure under increasingly panicked pedal pressure.

It's both possible (has happened before to CT) and fits the data extremely well. I'm happy to take sucker bets from all the "100% bet it's pedal misapplication" crowd.

 

[Crissa]

Hard to do if the truck lost power, which is a documented thing that has happened to others, and would explain everything else that the OP described.

He didn't describe it as being difficult to turn, or sending error messages.

The brakes still work without the assist, you just have to press on them with more force. They shouldn't feel soft.

-Crissa

 

[TickTock]

Will be interesting if the original poster updates this. Assuming it was not false information posted by a Tesla short-seller it is a pretty serious issue.

All the EV forums (not just Tesla) are full of paid fudsters doing everything they can to slow EV adoptions so it isn't just short sellers. Jury is still out on this one. This could be real but if I had to place an even bet, my money would be on he just took the turn too fast - people never want to take responsibility for their mistakes.

 

[BannedByTMC]

The brakes still work without the assist, you just have to press on them with more force. They shouldn't feel soft.

In the moment when expecting full brake response and not getting it I think that could feel "soft".

 

[BannedByTMC]

All the EV forums (not just Tesla) are full of paid fudsters doing everything they can to slow EV adoptions so it isn't just short sellers. Jury is still out on this one.

So lets see, your premise is he bought a Cybertruck, crashed it, posted pictures here on this forum that few people even know about, to slow EV adoption? Really?

 

[Deleted member 17810]

EXACTLY.

I also don't understand why everyone is trying to concoct some crazy simultaneous multiple system failure as the alternate to operator error + conspiracy. There are multiple documented cases of CT completely losing power / shutting off. If that happened while driving down the road, regen and steering won't work and brakes will be very weak. If you have ever tried to brake a car with power off, there is a sense of "delay" like the OP describes as the brakes build pressure under increasingly panicked pedal pressure.

It's both possible (has happened before to CT) and fits the data extremely well. I'm happy to take sucker bets from all the "100% bet it's pedal misapplication" crowd.

Because some people on the forum are a little...? When it comes to this vehicle.

 

[agordon117]

Everyone saying the brakes still work if the hydraulic assist goes out unexpectedly... Are you really saying you would be able to realize what was happening and react with 10x as much pedal force in the same amount of time as normal? There's no e-brake to pull. You can't simulate failed brakes to train yourself to know what it will feel like.

I still am not taking a position on this one way or the other, but this is one big cope fest in both directions. It can only be system failure vs it can only be driver error. Meanwhile no matter what is shown, most of you guys will never change your position.

 

[FutureTruck]

Everyone saying the brakes still work if the hydraulic assist goes out unexpectedly... Are you really saying you would be able to realize what was happening and react with 10x as much pedal force in the same amount of time as normal? There's no e-brake to pull. You can't simulate failed brakes to train yourself to know what it will feel like.

I still am not taking a position on this one way or the other, but this is one big cope fest in both directions. It can only be system failure vs it can only be driver error. Meanwhile no matter what is shown, most of you guys will never change your position.

Yup. Original poster could post a video of the truck smashing into the pole, Tesla could issue a recall for a set of VIN #s impacted by faulty breaking and people would still say "thats fin, just early adaptor issues"

OR

Original poster might confess to being a short seller and people would still say "Tesla sucks and is dangerous!"

BUT

Most reasonable people just want a little more info to get an idea if it was a driver mistake or vehicle malfunction

 

[WormtownKris]

So lets see, your premise is he bought a Cybertruck, crashed it, posted pictures here on this forum that few people even know about, to slow EV adoption? Really?

If you've seen the latest Jalopnik hit piece, or the various negative Electrek articles, you'll acknowledge that the lazy anti-Elon folks troll thru this forum to pull out perceived negatives, often out of context ("All CTs are already rusting!!!") and use the unvalidated experience of one poster as a proxy for all CyberTrucks or all Teslas.
So, these types of posts, legit or not, trolling or not, DO go out to a much wider audience than the regulars on this forum. If the OP does not come back and report Tesla telemetry shows user error, I would be surprised if there AREN'T articles quoting this and positing that CTs are faulty and unsafe.

 

[FutureTruck]

If you've seen the latest Jalopnik hit piece, or the various negative Electrek articles, you'll acknowledge that the lazy anti-Elon folks troll thru this forum to pull out perceived negatives, often out of context ("All CTs are already rusting!!!") and use the unvalidated experience of one poster as a proxy for all CyberTrucks or all Teslas.
So, these types of posts, legit or not, trolling or not, DO go out to a much wider audience than the regulars on this forum. If the OP does not come back and report Tesla telemetry shows user error, I would be surprised if there AREN'T articles quoting this and positing that CTs are faulty and unsafe.

True, a lot is riding on the OP to fill us in.

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