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Know what these lines behind my car are?

techmagnetic

Member
Sep 29, 2020
82
42
Boston
These just started showing up today while driving. On 2021.4.12 software.
Inked89a73c23-6a00-45eb-9621-2ac1761fccef_LI.jpg
 

drtimhill

Active Member
Apr 25, 2019
1,616
1,937
Seattle
They are the ultrasonic sensors around the car detecting something close to you (distance indicted by intensify of color and going from red to yellow). They shouldn't show up during driving unless someone is tailgating you or the road is very odd composition.
 
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techmagnetic

Member
Sep 29, 2020
82
42
Boston
They are the ultrasonic sensors around the car detecting something close to you (distance indicted by intensify of color and going from red to yellow). They shouldn't show up during driving unless someone is tailgating you or the road is very odd composition.
There was no one behind me and it was one a normally paved road. I've seen these before, but only when backing up and the car detects an object in the way. So odd.
 
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drtimhill

Active Member
Apr 25, 2019
1,616
1,937
Seattle
There was no one behind me and it was one a normally paved road. I've seen these before, but only when backing up and the car detects an object in the way. So odd.

It's possible that they could be faulty, but would be surprising for both sides of car to go bad at the same time. I've seen some road surfaces confuse them (one bridge I drive over sets them ALL off and plays havoc with AP), so it might have been that. Try to note where it happens and see if recurs at the same spot (it might also be weather related).
 

techmagnetic

Member
Sep 29, 2020
82
42
Boston
It's possible that they could be faulty, but would be surprising for both sides of car to go bad at the same time. I've seen some road surfaces confuse them (one bridge I drive over sets them ALL off and plays havoc with AP), so it might have been that. Try to note where it happens and see if recurs at the same spot (it might also be weather related).
I think it was something about it being at night and a weird anomaly with the road. Didn't see it today but will check again at night.
 

hgp57

New Member
Feb 19, 2021
2
0
waterloo ontario
Try a reboot before your next drive. Might help.
I had the same thing happen in our MY on Sunday.
I was driving on the same road I always do when this happened.

Once I stopped, I pushed both buttons on the steering wheel till the screen went black.
Once the car reset it went back to normal and has not happened since then.
 

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