A brake checkA brake check, also known as a brake test, occurs when a driver deliberately brakes hard when moving in front... There's more... or brake test is when the driverOK, so we all know what the driver is, right. I've always liked the description that F1 drivers are like... There's more... deliberately hits the brakesF1 car brakes are similar to normal road cars, only they are made with different materials and operate under considerably... There's more... to test them.
Given F1F1 is the pinnacle of open wheel, single seater car racing and arguably the highest level of any motorsport globally.... There's more... cars don’t have brake lights this action needs to be performed only when there are no cars close behind. Otherwise, the stewards may rule that it is considered dangerous drivingWith the safety of the drivers, team, marshals and fans paramount, the FIA sets regulations and enforces them without latitude. ... There's more... and issue a warning or a penalty.
Drivers have been known to test their brakes to catch out the car behind “He just ‘brake checked’ me”