The ADAS systems installed respond to the data provided by the camera/s radar and related sensors so it's only accurate if the data provided is accurate.
Even slight misalignment of the camera or radar sensor could mean the difference of avoiding an accident or not.
The vehicles ADAS radar and or cameras are calibrated before the vehicle leaves the factory however, calibration must be carried out after many common maintenance repairs such as suspension part replacements, geometry adjustments, body damage repairs near a system or a windscreen replacement.
It is advisable by your insurance company to have your ADAS system vehicles camera(s) and/or radar systems recalibrated if they haven't been calibrated within the last 3 years.