Seat Ibiza brake lights flashing under heavy braking 100-0 km/h in snow 

100-0 km/h emergency brake test
2009 Seat Ibiza 6J/6P
1.4tdi
Stage 1: 105hp 235Nm
Apollo Alnac 4G All Season tires
I used a Caristra obd2 adaptor to enable the adaptive brake lights and hazard lights under heavy braking function. Works on every VW group car (Audi, Seat, VW, Skoda).
This is normally enabled by default.
obd2 adaptor: caristaapp.com/