That’s flashing your high beams. The poster was talking about actually turning lights on and off, as they said not flashing your high beams on and off. I flash high beams fairly regularly to communicate with another driver: you may proceed (as I mentioned in my last post), you forgot to turn your headlights on, or there’s a cop down the road. I don’t turn my headlights on and off (well, I actually lied a little on that – I sometimes do that for trucks trying to merge in, but I’m the only person I know who does the lights-on-lights-off thing. It’s just something a trucker once taught me and I do it when I’m board hoping to get a flash of the cab lights as a “thank you” in return, and feel like I’m part of a secret society. )

CarFax TV Commercial HD
This is a 2000 tv video commercial from Carfax and titled "Man Lets Dog Drive". We hope you enjoy the commercial and as always thanks for watching.