Hi all,

I have a 2019 L405 Autobiography with ACC + Queue Assist.
The damn thing beeps at me and slams on at ~15MPH or less and demands that I take control...

Any idea why?

It doesn't always do it, and it works fine at higher speeds.


Thanks
Al


Here she is:

I have the same issue (2018 model)
There is a service bulletin LTB01270 which may be the answer ( I have the bulletin but cannot see how to upload it?)

UPDATE, I can confirm that Service Bulletin LT01270 appears to have cured this problem. It is rather bizarre,
" CAUSE:
False operation of the adaptive cruise control driver intervention system due to radar
wave reflection within the front bumper cover. No Diagnostic Trouble Codes (DTCs) will
be stored"

you remove the front bumper and insert two (special) foam blocks into a void about 4 inches away from the radar. 2018 4.4 TDV8