July 13, 2021

Why ADAS recalibration are important for safe drive.

As you now aware, ADAS systems will use a variety of ADAS sensors commonly cameras and radars also additionally Lidars. These sensors are mounted on particular positions on car and these positions are defined in few millimeters.

Some sensors are directly exposed to the environment when some are hidden behind plastic panels or windscreens.

During vehicle lifespan events like panel-beater repairs, windscreens changes, re-painting, tire changes, service works involving striping bumpers or just small bumps and minor damages during maneuvering on small speed will put alignment of these sensors out of original calibration position and introduce risk that performance of ADAS systems will be significantly alternated or completely changed.

Just 1 degree centreline offset left/right when projecting on 150m (typical working camera distance) becoming 2.6m offset of centerline and on typical long radar working distance of 300m same 1 degree offset becoming 5.24m.

To ensure correct operation of ADAS systems as designed by OEM, after these repairs or work ADAS sensor recalibrations are requested by OEM technical instructions and should be performed to realign sensor calibration data to new positions and to reinsure proper functioning of ADAS systems.       OEM instructions mandating or recommending also test drive to confirm full functionality of these systems in real traffic environment.

SAFETY NOTICE ! To reduce risks around misaligned sensor ADAS EXPERTS advise drivers to perform recalibrations of all vehicle ADAS systems if purchasing second hand vehicles equipped with ADAS or periodically depending on mileage/years and general conditions of vehicle.