Many EU-spec cars have the brake lights flash under emergency braking, and the hazards come on if the car comes to a stop after that. This is how it was impleme

Many EU-spec cars have the brake lights flash under emergency braking, and the hazards come on if the car comes to a stop after that. This is how it was implemented in several cars I owned - a C-class, an Audi A5, and now in a EU-spec Model 3 as well.