Unexpected Acceleration in Garage

Motomax

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Brake-hold requires some throttle to disengage the brakes. If you're not ready for that throttle to be translated into motion when the brake releases, it will lunge forward. Brake-hold really isn't necessary if you're using 1PD, so I would turn it off.
As far as I know, There’s no difference between brake-hold and 1PD applying the brakes.
I can release the brake-hold without the vehicle moving beyond a forward creep. Either something is wrong or you need a finer touch on the accelerator.

OP are you sure you’re not activating the pre collision braking? I’ve had it apply when backing down a steep driveway and it takes quite a bit of throttle to override it.
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generaltso

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I can release the brake-hold without the vehicle moving beyond a forward creep. Either something is wrong or you need a finer touch on the accelerator.
Yes, you can as long as you know what to expect and know to gently feather the accelerator to get the brake to release without an unintended surge in motion. But it sounds like the OP wasn't expecting it.
 

Logal727

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I have been in unbridled OPD since day one. My car plays very nice with small movements. But I have a fairly large garage. Is it possible that for those with the lurching, the car is engaging some of the anti collision automatic braking. I’m thinking those trying to move just an couple inches may be trying to fit the car into a tight garage.
If the car is automatic braking, this does require a fair amount of go pedal to overcome and tell the car “yes I still want you to move.” Then that forceful acceleration is realized.
Just a thought.
Same here and my garage is normal “two car” garage and I haven’t experienced this with OPD
 

Motomax

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Yes, you can as long as you know what to expect and know to gently feather the accelerator to get the brake to release without an unintended surge in motion. But it sounds like the OP wasn't expecting it.
The brake-hold deactivates almost instantly, I just don’t see how it can surprise you. Now In 2PD the auto creep is a little faster than ice cars so I guess that might catch someone off guard (like the one guy who posted that his car took off on him lol) but even that isn’t enough to hit a wall 3 ft away…well maybe.
I’m still convinced pre-collision braking was a factor.
 

generaltso

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The brake-hold deactivates almost instantly, I just don’t see how it can surprise you. Now In 2PD the auto creep is a little faster than ice cars so I guess that might catch someone off guard (like the one guy who posted that his car took off on him lol) but even that isn’t enough to hit a wall 3 ft away…well maybe.
I’m still convinced pre-collision braking was a factor.
How would pre-collision braking make somebody hit a wall?
 


Motomax

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How would pre-collision braking make somebody hit a wall?
Because you have to push the accelerator half way down to override it. With this buggy software, if the false activation clears with your foot down it might just send you into a wall haha. In my experience it doesn’t but who knows.
 

Dr Obnxs

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I've had some really wired behaviors as well.

FWIW, I would caution other readers thinking all is well when posters say things like this.

If their car is faulty, then the fact that's it's never happened to you is irrelevant.

We also know that there are tons of settings and situations that can effectively put the car in a state that maybe you yourself never have been in.

Lastly there is car to car varience (sometimes knows as tolerance stacking) that can mean that two "identical" cars effectively act differently.

Like I said, I've noted several unnerving events. I was a technical editor for a car magazine for 7+ years, a member of an automotive journalists group, and have driven many, many hundreds of different cars.

The last wierd event was when I was heading home yesterday, seemed like the car was in cruise control holding speed when I should have been slowing for a turn into my neighborhood. It was going uphill, so something overriding one pedal driving still would have resulted in a slowing car. Not full pucker factor inducing, but worrisome. Since I wasn't fully sure of everything about the cars settings, I'll just file it away till it happens again. If that occurs, I'll work on narrowing down what makes it happen, that is, if it's cause is deterministic and repeatable.

To the OP, good luck with this. I don't think you're a bad driver. Let us know how this unfolds.
 

Dr Obnxs

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Ouch! I feel for you.

Just so you know, that's just a little over the estimate to repair getting the two support blocks for the rear load floor fixed if they get torn out. I overloaded mine, tore one of those plastic blocks off, and was quoted about $1k to fix it.
 

newmme

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I would take to the dealer right away. But probably Ford can pull the logs of the car and see what happened in great detail. Regardless worth getting it fixed for peace of mind.
 

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Triggerhappy007

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It was manufactured during the month of December 2021 :(
And it was software affecting the front motor so you wouldn't have been included in the recall anyways.

You still have your 1 pedal and auto brake hold off right?

I don't use those settings anyways. I find it's much harder to park with those settings on.
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