Weird brief warning M340i

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We've had our 2020 M340i Touring for a month now and a couple of times it has flashed up a red rectangle in the centre of the dash accompanied by a chiming sound (bell like). It lasts barely a second so I can't read anything in the rectangle and can't find anything about it in the manual. Both times it has been after start up, at exactly the same place heading out of our close (slightly downhill, right hand bend, about 15-20mph). It's running fine at all times.

Any ideas ?

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E-bmw said:

Only you can see where it is on your instrument console, why not have a look in the manual to see what could be there & what it might look like, I would guess it won't take long.

I did take a look before posting, nothing like it in there.

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edthefed said:

Its part of a "collision avoidance system"

Basically the car thinks that if you continue at that speed and in that direction you are on course to hit something.

Have to say i am completely underwhelmed with it on my G30, It often activates for no good reason !

That sounds feasible, cold tyres, cornering, passing parked cars. Seems a bit intrusive tho' at 20 mph.

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brums evil twin said:

you can change the sensitivity of it from early to medium to late

Its based on the camera in the windscreen - basically if the OBJECT gets bigger quickly based on you driving within its parameters its give a visual Red car warning) and audible warning, Plus it prepares the brakes as well.

I knew about that after buying a set of wheels off a guy who also had one, thought I'd already set that to the lowest sensitivity.