Rear Ended (55MPH to 60MPH) - FSD Started Turning Wheel Prior to First Collision to Prevent a Second Collision

[vandytom]

Other vehicle is apparently uninsured.

Straight to jail. We all pay higher premiums for uninsured and underinsured drivers.

I’m shocked she’s still alive. That front is smashed.

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[Eka]

Retain salvage, transfer all the lifetimes. Part out the PCS and other components that are common pain points

Retain salvage and make it into a stationary battery bank. If and when another FSD transfer possibility comes up transfer the FSD.

 

[Eka]

I’m shocked she’s still alive. That front is smashed.

Airbags have done a huge amount for accident survival.

 

[mongo]

Almost appears to release brake right before impact to reduce force which is something I’m always prepared to do.

While that can reduce the damage to the vehicle itself, it makes things worse for the occupants of the stationary vehicle. The less the vehicle moves the less force is imparted onto them.

 

[benleejr]

Glad everyone in your CT is okay, as that's the most important thing.

I'm glad the CT turned to avoid hitting the Pilot in front of you, but a little disappointed it didn't go right or avoid the collision completely!

35 yrs ago I got hit in the rear on the Eisenhower expressway in Chicago. Right lane was backed up exiting. The woman who hit me had just picked up a rental car, and was rubbernecking another accident on the side of the road! Yep, doing in excess of 55mph and never hit the brake.

I happened to be looking in my rear view mirror, saw her coming, turned my steering wheel right towards the breakdown lane, when I got hit. Not enough time to hit the gas. It was so hard, the stereo flew out of the dash and into the back seat.

I was in a Saab 900. My neck got whiplashed good. Her rental car was destroyed, she was fine. My Saab's rear bumper was connected to her car, and the trooper had me drive my Saab forward to disconnect us. The rear hatch was slightly displaced and the bumper cover was damaged, but you could barely tell I had been hit. My front bumper on the left side was bent because I had been pushed into the Cadillac in front of me. Only on the left because I had turned my steering wheel and was trying to get out of the way.

Now, I always look behind me when I slow. I was hoping the CT would be more proactive in avoiding rear-end collisions. I would prefer it go right into the breakdown lane rather than left into potential oncoming traffic. Oh well, can't have everything. Glad you and yours are okay. Be sure to get thoroughly checked out.

Very fortunate. Definitely will not forget the cries of my wife and our 17 month old daughter right after we got hit.

That is what I questioned too at the time. Guess FSD is just not there yet.

I definitely learned from this to constantly check behind me if slowed or slowing.

Would be nice to know if FSD saw that the lane was completely clear and chose to use the oncoming lane instead of the shoulder. FSD will use the shoulder sometimes to pass a stopped or slowing left turning vehicle on a two lane country road.

That is what I keep stressing to my wife to do. I keep checking on our daughter too daily to make sure nothing is swelling or painful.

 

[Coagulation]

That is a nasty hit. Glad you guys are OK.

Please let us know what insurance ends up doing with FSD. That would be pretty messed up if they don’t pay the replacement value or have some consideration, knowing that apples to apples, you’ll now have to subscribe for $99 a month

 

[vandytom]

While that can reduce the damage to the vehicle itself, it makes things worse for the occupants of the stationary vehicle. The less the vehicle moves the less force is imparted onto them.

I guess this is true if you’re in a smaller vehicle. From physics, I don’t see how more force on the truck means less for things inside. Force is transferred. It must go somewhere.

 

[vandytom]

Airbags have done a huge amount for accident survival.

Yes I’ve experienced it in early Model 3. It held me completely still despite face bruising and seatbelt rib ache.

 

[mongo]

I guess this is true if you’re in a smaller vehicle. From physics, I don’t see how more force on the truck means less for things inside. Force is transferred. It must go somewhere.

Having the brakes engaged means more force goes through the tires into the ground rather than accelerating the vehicle and people inside it.

 

[vandytom]

Having the brakes engaged means more force goes through the tires into the ground rather than accelerating the vehicle and people inside it.

Wait the car still got hit tires or not. Holding it still just means the full force hits the tire AND you. If rolling, the force is dissipated through forward motion. Someone with physics please chime in lol.

from Google:
“In most scenarios, keeping your foot on the brake is safer to prevent slamming into the vehicle ahead, decreasing the chance of a secondary, more severe collision. While releasing the brake may slightly reduce whiplash by letting the car absorb energy, it risks plunging you into traffic or another car.”

if your car hits the vehicle ahead, then yes, no force really got reduced….in the OP case, it was able to steer away so releasing the brakes reduce the force of whiplash.

 

[mongo]

Wait the car still got hit tires or not. Holding it still just means the full force hits the tire AND you. If rolling, the force is dissipated through forward motion. Someone with physics please chime in lol.

from Google:
“In most scenarios, keeping your foot on the brake is safer to prevent slamming into the vehicle ahead, decreasing the chance of a secondary, more severe collision. While releasing the brake may slightly reduce whiplash by letting the car absorb energy, it risks plunging you into traffic or another car.”

if your car hits the vehicle ahead, then yes, no force really got reduced….in the OP case, it was able to steer away so releasing the brakes reduce the force of whiplash.

Force reacted by/through the tires is force that doesn't go into accelerating the vehicle. Whiplash is due to the acceleration impulse and following deceleration from the impact. The less acceleration, the less deceleration. Ideally, you would let off brake after the impact to reduce the rate of deceleration after reducing the amount of acceleration, but that's not humanly possible.

Take it to the exteme, if the rims are welded to the road so they can't move, how much impact does the driver feel?

 

[ÆCIII]

The second embedded video is the rear camera.

The second video is not viewable or rendering correctly from my browser. The first video worked fine.

​

- ÆCIII

 

[mongo]

The second video is not viewable or rendering correctly from my browser. The first video worked fine.

​

- ÆCIII

Weird
Here's a screen capture of it, could also try copying the link and open in a new tab

 

[EWELON]

We were visiting the in-laws and this happens. Nobody in our Cybertruck needed a Ambulance ride. Metadata shows that FSD swerved to avoid a secondary collision with the Honda Pilot in front.

Painful thing was FSD was purchased outright along with the 0% deal. Waiting on my insurance. Other vehicle is apparently uninsured.

dang what would it have done if there was oncoming traffic? good decision to turn wheel but bad to turn it left.

 

[WheresMyCybertruck]

dang what would it have done if there was oncoming traffic? good decision to turn wheel but bad to turn it left.

This was the first thing I noticed as well. Very poor decision to turn into the oncoming lane.

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