Cybertruck sinks underwater in Ventura CA Harbor -- must not have been in Wade Mode

[mongo]

There is not ebrake in a Tesla. When you park, or open a door, the regular brake is locked on in PARK.

Teslas including Cybertruck have a separate electrically actuated parking/ emergency brake actuator (on the same caliper assembly).

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[CTInProcess]

This must be a former ICE Truck owner that has no clue how to expertly handle this beast. Perhaps Tesla should start including a drivers course to show the capabilities and how to handle this Truck.

 

[CyberGus]

this is not on when I'm park.

I find the Owner's Manual to be vague on this point.

Parking Brake​

​

The parking brake is automatically engaged when in Park, and automatically disengages when shifted out of Park.​

To manually engage the parking brake, touch Controls > Safety > Park Brake. Follow the onscreen instructions. Manually disengage the parking brake by selecting Park > Brake again.​

https://www.tesla.com/ownersmanual/cybertruck/en_us/GUID-6DD1AA33-2FE0-44B0-93EA-17CF5BB80F76.html

 

[mongo]

I find the Owner's Manual to be vague on this point.

Parking Brake​

​

The parking brake is automatically engaged when in Park, and automatically disengages when shifted out of Park.​

To manually engage the parking brake, touch Controls > Safety > Park Brake. Follow the onscreen instructions. Manually disengage the parking brake by selecting Park > Brake again.​

https://www.tesla.com/ownersmanual/cybertruck/en_us/GUID-6DD1AA33-2FE0-44B0-93EA-17CF5BB80F76.html

I'm sitting in mine running through the modes.
That button is the same thing the vehicle does when you go into Park, with the added advantage of preloading the pads with the service brakes (if you push the brake pedal firmly), enabling the button only requires light pressure to trip the brake light switch.

 

[eswimm]

I think we've seen from other issues like Teslas sliding down driveways when parked on snow, the electronic parking brake is only on the rear wheels and if they slip, the front wheels will roll freely.

Unlike a traditional automatic transmission with a parking pawl or a manual transmission you can leave in gear, the Tesla system has the parking brake as the single point of failure. The brake is certainly sufficient to keep the rear wheels from rolling even on inclines, but as soon as they lose traction there's no backup. A true 4WD system in park or in gear would have had some resistance to rolling on the front wheels, even with a rear-only parking brake.

I'd be willing to bet the driver would have had no issues whatsoever if they stayed in D or R on the ramp, since brake hold would have been applying front and rear brakes. As soon as they got out and if shifted to only the parking brake, they were relying entirely on traction at the rear wheels. Buoyancy, either because they submerged too much of the vehicle or because they didn't untie from the trailer, loss of traction from algae on the ramp or more likely the combination of both meant the CT was going for a swim.

I used to launch my jetski with my BMW 540. I was always especially careful not to get the rear end too far down the ramp, because there was no recovery if I lost traction. This almost definitely wouldn't have happened if there was somebody in the driver's seat while launching.

 

[mongo]

Unlike a traditional automatic transmission with a parking pawl or a manual transmission you can leave in gear, the Tesla system has the parking brake as the single point of failure.

A traditional pawl is a single point of failure, as is the clutch/ engine. A nonlocked rear differential also means you are relying on the traction of the least grippy wheel. Dual parking brake pads give redundancy.

A true 4WD system in park or in gear would have had some resistance to rolling on the front wheels, even with a rear-only parking brake.

Initally, but a true 4WD with transfer case not locked would allow differential front and rear spin rates reducing the system back to the least grippy tire. An AWD type with limited slip center differential would help a little, maybe.

 

[Marc Montgomery]

This must be a former ICE Truck owner that has no clue how to expertly handle this beast. Perhaps Tesla should start including a drivers course to show the capabilities and how to handle this Truck.

Thank you for confirming my statement.

 

[Gaximus]

This must be a former ICE Truck owner that has no clue how to expertly handle this beast. Perhaps Tesla should start including a drivers course to show the capabilities and how to handle this Truck.

Have you seen how many ICE trucks have "gone swimming" at the docks? Search on YouTube for boat loading fails for a good laugh. This is very unlikely a "Could have done it in an ICE truck" driver, they most likely would have ended up in the water either way.

 

[eswimm]

A traditional pawl is a single point of failure, as is the clutch/ engine. A nonlocked rear differential also means you are relying on the traction of the least grippy wheel. Dual parking brake pads give redundancy.

Initally, but a true 4WD with transfer case not locked would allow differential front and rear spin rates reducing the system back to the least grippy tire. An AWD type with limited slip center differential would help a little, maybe.

Agreed, but either of those systems provide redundancy alongside a parking brake.

4WD with transfer case would still have prevented the front wheels (with traction) from rolling if parking brake had immobilized the rears.

The reality is that launching a boat alone is a risky endeavor and trucks occasionally end up in the lake. Wheel chocks are a cheap investment.

 

[Korben Dallas]

This is concerning to me because the boat ramp where I will launch our pontoon boat this year is steeper than the one in Ventura and I haven’t used my Cybertruck for that purpose yet. Also, my wife is strictly an observer when launching or hauling out as she refuses to both drive the truck or the boat when doing so.

Guess I might have to impose on our neighbor to drive the boat off & back onto the trailer while I stay in the front seat. Or ask my son to drive 2 hours from Seattle to help.

This kind of sucks because I don’t like imposing on anyone, including family when I should be able to easily do it myself.

 

[Celiboy]

To launch a JetSki that is WAY further than you need to go, and even if the rear tire was mostly under like in the pic below the truck on that shallow of an angle should be able to drive out no problem.
Ventura has maybe a 5' total tidal swing.

Something does not add up, ramp does not look steep and even if slimly should not pull a vehicle in like that.

HOPEFULLY they just forgot and left it in R, sucks but hopefully driver error on that one.

You can’t leave any Tesla in gear. You take off your seatbelt or open the drivers door and it automatically goes into park. I can’t explain how this happened, even as someone who launches a bass boat at least a couple of times a month. I’ve been on ramps much steeper than this one, fearing this exact scenario, and have not had the truck even budge.

 

[BigAl]

There is not ebrake in a Tesla. When you park, or open a door, the regular brake is locked on in PARK.

I think you are mistaken here...


What is the E-Brake?

The E-brake, or electronic parking brake, replaces the conventional handbrake lever or foot pedal found in older vehicles with an electronic system. This system is controlled via a button or the vehicle's touchscreen interface, engaging the rear brakes to prevent the vehicle from moving. In Tesla vehicles, the E-brake integrates seamlessly with the car’s advanced electronics and driver assistance features, providing an added layer of safety and convenience.



Engaging the E-Brake

Via Touchscreen:

• Tap the Car icon on the bottom left of the central touchscreen to access the main control menu.
• Select Controls, then Safety & Security.
• Tap Parking Brake to engage the E-brake.

Via Physical Button:

In some Tesla models, you can engage the E-brake using the physical button located on the end of the gear selector stalk (often referred to as the 'park' button). Press and hold this button until the E-brake engages.

 

[mongo]

Agreed, but either of those systems provide redundancy alongside a parking brake.

4WD with transfer case would still have prevented the front wheels (with traction) from rolling if parking brake had immobilized the rears.

The reality is that launching a boat alone is a risky endeavor and trucks occasionally end up in the lake. Wheel chocks are a cheap investment.

But how does one get the chocks into place? I suppose you could stop with rear wheels out of the water, place them in front of the rears, then slowly reverse until the front tires rest on them...

 

[eswimm]

Maybe it was insurance fraud. I may or may not have considered it when I was upside down on my BMW.

 

[CTInProcess]

That CT wanted to die, it wasn’t happy with its wheels ?

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