2010 Subaru Forester Owner's Manual - Page 236

7-26 NOTE Starting and operating If the warning light behavior is as described below, the ABS system may be considered normal. . The warning light illuminates right after the engine is started but turns off immediately, remaining off. . The warning light remains on after the engine has been started, but it turns off when the vehicle speed reaches approximately 8 mph (12 km/h). . The warning light illuminates during driving, but it turns off immediately and remains off. Electronic Brake Force Distribution (EBD) system The EBD system maximizes the effectiveness of the brakes by allowing the rear brakes to supply a greater proportion of the braking force. It functions by adjusting the distribution of braking force to the rear wheels in accordance with the vehicle's loading condition and speed. The EBD system is an integral part of the ABS system and uses some of the ABS system's components to perform its function of optimizing the distribution of braking force. If any of the ABS components used by the EBD system malfunction, the EBD system also stops working. When the EBD system is operating, you may hear a chattering noise or feel a slight vibration in the brake pedal. This is normal and does not indicate a malfunction. & Steps to take if EBD system malfunctions If a malfunction occurs in the EBD system, the system stops working and the brake system warning light and ABS warning light illuminate simultaneously. The EBD system may be malfunctioning if the brake system warning light and ABS warning light illuminate simultaneously during driving. Even if the EBD system malfunctions, the conventional braking system will still function. However, the rear wheels will be more prone to locking when the brakes are applied harder than usual and the vehicle's motion may therefore become somewhat harder to control. If the brake system warning light and ABS