"Reverse Brake Assist Not Available. See Manual"

locks66

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I replaced my passenger side mirror (broke the other one) and blind spot and cross traffic both work again.

However, every single time I shift to reverse I get the error

"Reverse Brake Assist Not Available. See Manual"
Any thoughts? I tried the whole flat road thing others mentioned and that didn't seem to do anything. I'm hoping the dealer just needs to reset a module or something with the new mirror install
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highland58

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I replaced my passenger side mirror (broke the other one) and blind spot and cross traffic both work again.

However, every single time I shift to reverse I get the error

"Reverse Brake Assist Not Available. See Manual"
Any thoughts? I tried the whole flat road thing others mentioned and that didn't seem to do anything. I'm hoping the dealer just needs to reset a module or something with the new mirror install
There is a setting to turn that on and off. I have a narrow garage door and I back in. With the brake assistant on, if I went too fast when approaching the door, the car would slam on the brakes sometimes, it thought I might hit the doorway. That was annoying, so I turned it off.
 

AliRafiee

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I’ve only seen that if I put it in reverse when the passenger door is open.
 
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locks66

locks66

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There is a setting to turn that on and off. I have a narrow garage door and I back in. With the brake assistant on, if I went too fast when approaching the door, the car would slam on the brakes sometimes, it thought I might hit the doorway. That was annoying, so I turned it off.
Yeah I have turned it off in the mean time because it won't make the loud ding sound everytime I shift to tell me "hey it's broken!"

It's seeming like I'm gonna need the dealer to do something.
 

GlennMacC

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"Reverse Brake Assist Not Available. See Manual"
Any thoughts? I tried the whole flat road thing others mentioned and that didn't seem to do anything. I'm hoping
I had this warning repeatedly and took it in to the dealer who told me that there was a service bulletin on it and they replaced some "harness" (sorry, I forget the exact term). I have not seen the warning since.

Glenn
 


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locks66

locks66

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I had this warning repeatedly and took it in to the dealer who told me that there was a service bulletin on it and they replaced some "harness" (sorry, I forget the exact term). I have not seen the warning since.

Glenn
This is helpful and will hopefully stop the random issues I had been running into with it in the past!
 
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locks66

locks66

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So finally got my car in and they called me about 1 hour after the drop off. Quick diagnosis but said the entire system needed to be reprogrammed and the cameras recalibrated.
 

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Count me in on this one. I'd say 75% of the time I throw it in reverse I get the dings. But it's gotten so lazy it doesn't even show the warning that brake assist is broken. I finally caught it on the IPC for about 1/4 second yesterday.
 
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locks66

locks66

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azerik

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I have what appears to be a constant disconnect to the image processor. I'm going to try for a force reset (Forscan) of the rear camera and image processor if I can find it in Forscan.

Question though. Can anyone else see their pony in the back up cam?
Ford Mustang Mach-E "Reverse Brake Assist Not Available. See Manual" IMG_4867
 
 




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