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      12-26-2021, 06:50 PM   #1
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M5 reverse sensor issue?

For the last few days, my M5 is forcefully stopping while in reverse like I'm about to crash into something, but there's nothing there. Sensor issue? How anyone else experienced this? I have gotten out twice thinking I hit someone, it's awesome.
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      12-26-2021, 07:43 PM   #2
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Quote:
Originally Posted by Padfan9 View Post
For the last few days, my M5 is forcefully stopping while in reverse like I'm about to crash into something, but there's nothing there. Sensor issue? How anyone else experienced this? I have gotten out twice thinking I hit someone, it's awesome.
Yeah I had that happen once. I thought I did hit something, but no. It was super unsettling. Hasn't happened since.
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      12-27-2021, 01:48 AM   #3
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Yes, it's happened a couple of times to me too. I have the setting for brake intervention for reverse, probably overly sensitive sensor or buggy as nothing was behind me. Actually, same thing happened to me while going forward but only once. I was the first car in line with no one in front and when the light turned green and all clear, I began my acceleration and the sensor sounded and the car braked hard. It was weird but luckily no one was behind me either.
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      12-27-2021, 02:24 AM   #4
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Yeah, overly sensitive sensors. Mine did that sometimes while backing out of my driveway. It was sensing a couple of manhole covers in the street that are just a few feet from where my driveway meets the street. I keep that feature turned off. It still beeps, so I would have to really try to not be paying attention to back into something.
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      12-27-2021, 06:27 AM   #5
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Here too couple of times
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      12-27-2021, 06:38 AM   #6
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Quote:
Originally Posted by Padfan9 View Post
For the last few days, my M5 is forcefully stopping while in reverse like I'm about to crash into something, but there's nothing there. Sensor issue? How anyone else experienced this? I have gotten out twice thinking I hit someone, it's awesome.
Mine used to do this all the time backing out of my garage so I turned that feature off as it made it impossible to get my car out of the garage with it activated
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      12-27-2021, 10:16 AM   #7
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Yup. My ‘19 M5C probably has done it 4-6 times a year for the last 3 years.
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      12-27-2021, 11:33 PM   #8
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Quote:
Originally Posted by BlueString View Post
Yes, it's happened a couple of times to me too. I have the setting for brake intervention for reverse, probably overly sensitive sensor or buggy as nothing was behind me. Actually, same thing happened to me while going forward but only once. I was the first car in line with no one in front and when the light turned green and all clear, I began my acceleration and the sensor sounded and the car braked hard. It was weird but luckily no one was behind me either.
Wow that's sketchy…. And dangerous.
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      12-27-2021, 11:34 PM   #9
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Quote:
Originally Posted by BMA89 View Post
Quote:
Originally Posted by Padfan9 View Post
For the last few days, my M5 is forcefully stopping while in reverse like I'm about to crash into something, but there's nothing there. Sensor issue? How anyone else experienced this? I have gotten out twice thinking I hit someone, it's awesome.
Mine used to do this all the time backing out of my garage so I turned that feature off as it made it impossible to get my car out of the garage with it activated
That's exactly what's happening to me! Only when I back out of my garage and driveway, and it literally stops every few inches. Very annoying.
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      12-27-2021, 11:35 PM   #10
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Quote:
Originally Posted by M5CSX6M View Post
Yup. My ‘19 M5C probably has done it 4-6 times a year for the last 3 years.
Did you take it in? I made an appt for tomorrow, but if they can't do anything I would rather not waste my time.
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      12-28-2021, 10:01 AM   #11
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Quote:
Originally Posted by Padfan9 View Post
Quote:
Originally Posted by BMA89 View Post
Quote:
Originally Posted by Padfan9 View Post
For the last few days, my M5 is forcefully stopping while in reverse like I'm about to crash into something, but there's nothing there. Sensor issue? How anyone else experienced this? I have gotten out twice thinking I hit someone, it's awesome.
Mine used to do this all the time backing out of my garage so I turned that feature off as it made it impossible to get my car out of the garage with it activated
That's exactly what's happening to me! Only when I back out of my garage and driveway, and it literally stops every few inches. Very annoying.
Just turn the feature off and it will solve your problem
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      12-28-2021, 10:57 AM   #12
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How to turn off feature?

Happens to me too while backing out of the garage at times.

How do you turn off the feature?

Does it automatically turn back on when restarting the car after being turned off for the day/night?

Thank you for your help

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Originally Posted by BMA89 View Post
Just turn the feature off and it will solve your problem
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      12-28-2021, 01:34 PM   #13
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Never mind…found where to turn off and on the setting for the brake activation feature

Quote:
Originally Posted by 21F90M5C View Post
Happens to me too while backing out of the garage at times.

How do you turn off the feature?

Does it automatically turn back on when restarting the car after being turned off for the day/night?

Thank you for your help
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      12-28-2021, 02:18 PM   #14
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Quote:
Originally Posted by 21F90M5C View Post
Never mind…found where to turn off and on the setting for the brake activation feature

Quote:
Originally Posted by 21F90M5C View Post
Happens to me too while backing out of the garage at times.

How do you turn off the feature?

Does it automatically turn back on when restarting the car after being turned off for the day/night?

Thank you for your help
Awesome! It stays off which is good just be more careful now lol
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      12-28-2021, 02:33 PM   #15
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Quote:
Originally Posted by Padfan9 View Post
Did you take it in? I made an appt for tomorrow, but if they can't do anything I would rather not waste my time.
Yup. Dealer said they fixed. They didn’t.
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      12-28-2021, 04:58 PM   #16
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Has happened to me as well. Once backing out of a car wash parking lot.

Another time backing out of garage. Hammers the brakes hard.

Each time thought I hit something. Freaked me out.
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      12-29-2021, 12:34 PM   #17
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Quote:
Originally Posted by BMA89 View Post
Quote:
Originally Posted by Padfan9 View Post
Quote:
Originally Posted by BMA89 View Post
Quote:
Originally Posted by Padfan9 View Post
For the last few days, my M5 is forcefully stopping while in reverse like I'm about to crash into something, but there's nothing there. Sensor issue? How anyone else experienced this? I have gotten out twice thinking I hit someone, it's awesome.
Mine used to do this all the time backing out of my garage so I turned that feature off as it made it impossible to get my car out of the garage with it activated
That's exactly what's happening to me! Only when I back out of my garage and driveway, and it literally stops every few inches. Very annoying.
Just turn the feature off and it will solve your problem
Ok I'll cancel my service then and just shut that off. It's just a nice feature to have in case of an emergency.
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      12-29-2021, 05:11 PM   #18
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Used to happen to me when backing off my driveway onto the road as it slopes down to the road.
Just press the button next to the red hazard warning triangle, the one with the car icon in a green circle.
It will shortcut you to the active safety menu where you can reduce sensitivity or turn off.
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      12-29-2021, 05:36 PM   #19
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Happens to me also. It can be very sensitive sometimes.
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      12-30-2021, 12:47 AM   #20
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Quote:
Originally Posted by Padfan9 View Post
Wow that's sketchy…. And dangerous.
I have the driving assistant plus pkg which has that big sensor at the lower portion of the front bumper. These cars just have too many sensors/electronics which means potential for issues. I do find it helps to wipe down that sensor from time to time to make sure no debris is on it.
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      01-02-2022, 01:49 AM   #21
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Quote:
Originally Posted by BlueString View Post
Quote:
Originally Posted by Padfan9 View Post
Wow that's sketchy…. And dangerous.
I have the driving assistant plus pkg which has that big sensor at the lower portion of the front bumper. These cars just have too many sensors/electronics which means potential for issues. I do find it helps to wipe down that sensor from time to time to make sure no debris is on it.
Thank you, this actually helped. I have the same package.
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