this post was submitted on 18 Aug 2026
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Leaving this here in hopes it cheers someone up. In Aus, thats the "thank you" button. A lot of times people are trying to change lanes in heavy traffic and no one lets you through. But when someone does, you hit the hazards for 2 seconds to give thanks to the person behind you who just let you through. I always found it wholesome. Sometimes you let someone through and they dont turn the hazards on and I'm like "wheres my thank you??" lol.
Sucks to hear that people are using their hazards to park illegally, that would infuriate me lol.
In the US turning on and off (or off and on) twice the headlights/running lights is the same. Though you'll mostly only see truckers doing it.
We use it to warn people behind you, for example when a jam is coming up. To thank people, you blink left right left.