That's pretty wild that this is sold as aftermarket. This is baked into VAG & BMW car products for at least the last 12 years, and it was on my 2015 S1000XR, but it'll only activate under hard braking scenarios. I don't know if i'd want this to activate for every brake press, at least here in the UK i've gotten used to the idea flashing brake lights = car ahead is braking very hard.
Flashing brake lights in certain circumstances are required in the EU (Uniform provisions concerning the approval of vehicles with regard to the installation of lighting and light-signalling devices 2016/1723), although the linked brake light flashers seem to be unlawful as they flash on onset of braking rather than extreme braking force.
I've never seen flashing brake lights, but indicators flash on very hard braking. It first showed up on the first-gen Citroën C5, and was copied by everyone else after that. On the C5, it was part of the "emergency brake assist", which would basically work out that if you were doing an emergency stop, you really wanted to throw out the anchors and dump all the hydraulic pressure into the brakes.
Ahh you’re right - it’s hazards that flash, it’s not the brake lights.
OT: I was wondering if you were gordonjcp of scotlug fame (i don’t expect you’d remember me, i used to attend / was briefly active circa 2002-2004) but the mention of Citroen sealed it :-) hope you’re well!
It was yeah, i was at GU so Livvy felt like a sneak peek behind the scenes of how the other half lived. I remember getting loads of help writing my first linux kernel module in the Counting House with a bunch of folks huddled over my laptop :-D good memories.
