On a dark road, this decides how far ahead the driver can see — full beam for the open stretch, dipped the instant another car appears. Calibrated wrong, it misjudges that moment: blinding an oncoming driver at 120km/h or leaving your own driver in the dark where they needed the light most.

PG Glass recalibrates the beam-switching point against OEM targets and diagnostic proof, so the vehicle knows exactly when to hold full beam, when to dip, and how to protect both drivers.