I lower the headlights for an approaching vehicle, and they revert to high beam.
- A different vehicle is nearing me from around a bend, activating its high beams as it turns the corner.
A perfectly straight road causes the main beam to activate as the approaching vehicle is too distant for the system to detect, dazzling the oncoming motorist.
I thoroughly detest that system, and it has become customary for me to deactivate it promptly upon starting the engine.