Adaptive Brake Lights Flashing, Basic Function - GF42.47-P-1012A

Model All (4xWD, CAR) 

Overview 

This document contains information on:

• General 
• Function requirements 
• Function 

General 

The adaptive brake lights warn traffic following behind in an emergency braking situation by rapid flashing of the brake lamp units and activation of the hazard warning light system.

Function requirements 

• Drive system started
• Brake and traction system functional
• Vehicle speed > 50 km/h
• Deceleration > 7.5 m/s²
• Brake Assist System (BAS) triggers
• ABS controls both front wheels

Function 

The following lamp units are actuated for at least 1 s and with a flashing frequency of 5 Hz:

• Left rear lamp unit
• Right rear lamp unit
• Center stop lamp

If the vehicle comes to a standstill from a speed of > 50 km/h to 70 km/h, the brake lights and the brake lamp are permanently actuated.

If the vehicle comes to a standstill from a speed of > 70 km/h, the brake lights and the brake lamp are permanently actuated. The hazard warning lights are also automatically activated.

If the vehicle then exceeds a speed of 10 km/h, the hazard warning lights are automatically switched off.

	Control units
	Electronic Stability Program control unit, basic function	Model all (4xWD, CAR)	GF42.45-P-9890A